Updated on 2024/04/17

写真a

 
YUYAMA Ken-ichi
 
Organization
Graduate School of Science Department of Chemistry Lecturer
School of Science Department of Chemistry
Title
Lecturer
Affiliation
Institute of Science
Contact information
メールアドレス
Homepage
https://researchmap.jp/k_yuyama

Position

  • Graduate School of Science Department of Chemistry 

    Lecturer  2022.04 - Now

  • School of Science Department of Chemistry 

    Lecturer  2022.04 - Now

Degree

  • 博士（工学） （ Nara Institute of Science and Technology ）

  • 修士（工学） （ Osaka University ）

  • 学士（工学） （ Osaka University ）

Research Areas

  • Nanotechnology/Materials / Fundamental physical chemistry

  • Nanotechnology/Materials / Nanometer-scale chemistry

  • Nanotechnology/Materials / Fundamental physical chemistry

  • Nanotechnology/Materials / Optical engineering and photon science

Research Interests

  • 発光材料

  • 光マニピュレーション

  • 光トラッピング

  • 顕微分光

  • 光誘起結晶化

  • 光放射圧

Research subject summary

  • 光の力学作用を利用した物質操作手法の開発と顕微計測

Professional Memberships

  • JAPANESE ASSOCIATION FOR CRYSTAL GROWTH

  • THE CHEMICAL SOCIETY OF JAPAN

  • THE JAPAN SOCIETY OF APPLIED PHYSICS

  • THE JAPANESE PHOTOCHEMISTRY ASSOCIATION

Committee Memberships (off-campus)

  • 2023年度光化学若手の会事務局代表  

    2023.04 - 2024.03 

  • The 31st International Conference on Photochemistry (ICP2023) Local Organizing Committee  

    2023.04 - 2023.07 

  • 第44回光化学若手の会実行委員長  

    2023.04 - 2023.06 

  • プログラム委員   応用物理学会  

    2021.10 - Now 

Awards

  • The OMC Best Paper Award:

    Ken-ichi Yuyama

    2022.04   The 9th Optical Manipulation and Structured Materials Conference (OMC2022)  

  • 日本化学会北海道支部奨励賞

    柚山健一

    2020.01   光の力学作用を利用した分子集合制御

  • 光化学協会奨励賞

    柚山健一

    2019.09   界面での光マニピュレーションと半導体材料への展開

  • 第35回論文賞

    杉山輝樹, 柚山健一

    2018.11   日本結晶成長学会   光圧によるアミノ酸、タンパク質の結晶成長制御

  • 講演奨励賞

    柚山健一

    2010.09   応用物理学会  

Job Career (off-campus)

  • Osaka City University

    2020.07 - 2022.03

  • Hokkaido University   Research Institute for Electronic Science

    2016.10 - 2020.06

  • 台湾國立交通大學   應用化學系   助理研究員（助教相当）

    2013.01 - 2016.09

  • 台湾國立交通大學   應用化學系   博士研究員

    2011.04 - 2012.12

  • 旭硝子株式会社

    2006.04 - 2008.09

Education

  • Nara Institute of Science and Technology   Doctor's Course   Graduated/Completed

    2008.10 - 2011.03

  • Osaka University   Master's Course   Graduated/Completed

    2004.04 - 2006.03

  • Osaka University     Graduated/Completed

    2000.04 - 2004.03

Papers

  • High-definition direct-print of metallic microdots with optical vortex induced forward transfer Reviewed

    Rong Wei, Haruki Kawaguchi, Kaito Sato, Sayaka Kai, Keisaku Yamane, Ryuji Morita, Ken-ichi Yuyama, Satoyuki Kawano, Katsuhiko Miyamoto, Nobuyuki Aoki, Takashige Omatsu

    APL Photonics   9 ( 3 )   2024.03（ eISSN:2378-0967 ）

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    Publishing type：Research paper (scientific journal)  

    We demonstrate high-definition, direct-printing of micron-scale metallic dots, comprised of close-packed gold nanoparticles, by utilizing the optical vortex laser-induced forward transfer technique. We observe that the spin angular momentum of the optical vortex, associated with circular polarization, assists in the close-packing of the gold nanoparticles within the printed dots. The printed dots exhibit excellent electrical conductivity without any additional sintering processes. This technique of applying optical vortex laser-induced forward transfer to metallic dots is an innovative approach to metal printing, which does not require additional sintering. It also serves to highlight new insights into light–matter interactions.

    DOI： 10.1063/5.0187189

  • Fabrication of an Array of Hemispherical Microlasers Using Optical Vortex Laser-Induced Forward Transfer Reviewed

    Ken-ichi Yuyama, Haruki Kawaguchi, Rong Wei, Takashige Omatsu

    ACS Photonics   2023.09（ ISSN:2330-4022 ） （ eISSN:2330-4022 ）

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    Authorship：Lead author,　Corresponding author   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsphotonics.3c01005

  • Wavelength-Sensitive Optical Tweezers Using Black-Si Nanospikes for Controlling the Internal Polarity of a Polymer Droplet Reviewed

    Tatsuya Nagai, Ken-ichi Yuyama, Tatsuya Shoji, Yuriko Matsumura, Denver P. Linklater, Elena P. Ivanova, Saulius Juodkazis, Yasuyuki Tsuboi

    ACS Applied Nano Materials   6 ( 1 )   180 - 189   2022.12（ ISSN:2574-0970 ） （ eISSN:2574-0970 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsanm.2c04222

  • Direct print of close-packed gold nanoparticle microdots with optical vortex illumination Reviewed

    Haruki Kawaguchi, Kanta Takahashi, Rong Wei, Keisaku Yamane, Ken-ichi Yuyama, Satoyuki Kawano, Ryuji Morita, Nobuyuki Aoki, Katsuhiko Miyamoto, Takashige Omatsu

    Optical Manipulation and Structured Materials Conference (OMC 2022)   2022.12

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    Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1117/12.2659014

  • Formation of a core-shell droplet in a thermo-responsive ionic liquid/water mixture by optical tweezers Reviewed

    Maho Tanaka, Yasuyuki Tsuboi, Ken-ichi Yuyama

    Chemical Communications   58   11787 - 11790   2022.09（ ISSN:1359-7345 ） （ eISSN:1364-548X ）

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    Publishing type：Research paper (scientific journal)  

    Many chemical and biological processes involve phase separation; however, controlling this is challenging. Here, we demonstrate local phase separation using optical tweezers in a thermo-responsive ionic liquid/water solution. Upon the...

    DOI： 10.1039/d2cc02699f

  • Laser-induced forward-transfer with light possessing orbital angular momentum Reviewed

    Takashige Omatsu, Katsuhiko Miyamoto, Ken-Ichi Yuyama, Keisaku Yamane, Ryuji Morita

    Journal of Photochemistry and Photobiology C: Photochemistry Reviews   52   100535 - 100535   2022.09（ ISSN:1389-5567 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.jphotochemrev.2022.100535

  • Confinement and aggregation of colloidal particles in an ionic liquid microdroplet formed by optical tweezers Reviewed

    Maho Tanaka, Itsuki Kuramichi, Yasuyuki Tsuboi, Ken-ichi Yuyama

    Japanese Journal of Applied Physics   61 ( 10 )   100901   2022.08（ ISSN:0021-4922 ） （ eISSN:1347-4065 ）

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    Publishing type：Research paper (scientific journal)  

    Abstract

    Currently, there is considerable interest in applying colloidal assemblies to photonic and plasmonic devices. Optical tweezing enables the preparation of such assemblies at desired positions, but the assembly process occurs only in areas irradiated by laser light. Here, we demonstrate the collection and assembly of colloidal particles in areas beyond the irradiation area. The particles are taken into a micro droplet formed by optical tweezing in a thermo-responsive ionic liquid/water mixture. The confined particles aggregate as the droplet shrinks. The mechanism of confinement and aggregation of colloidal particles is discussed in view of the surface charge of the particles.

    DOI： 10.35848/1347-4065/ac8c0d

    Other URL： https://iopscience.iop.org/article/10.35848/1347-4065/ac8c0d/pdf

  • Generation of Ultralong Liposome Tubes by Membrane Fusion beneath a Laser-Induced Microbubble on Gold Surfaces Reviewed

    Chiaki Kojima, Akemi Noguchi, Tatsuya Nagai, Ken-ichi Yuyama, Sho Fujii, Kosei Ueno, Nobuaki Oyamada, Kei Murakoshi, Tatsuya Shoji, Yasuyuki Tsuboi

    ACS Omega   7 ( 15 )   13120 - 13127   2022.04（ ISSN:2470-1343 ） （ eISSN:2470-1343 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsomega.2c00553

  • Fluorescence Colour Control in Perylene‐Labeled Polymer Chains Trapped by Nanotextured Silicon Reviewed

    Ryota Takao, Kenta Ushiro, Hazuki Kusano, Ken‐ichi Yuyama, Tatsuya Shoji, Denver P. Linklater, Elena Ivanova, Saulius Juodkazis, Yasuyuki Tsuboi

    Angewandte Chemie International Edition   61 ( 11 )   2022.03（ ISSN:1433-7851 ） （ eISSN:1521-3773 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/anie.202117227

    Other URL： https://onlinelibrary.wiley.com/doi/full-xml/10.1002/anie.202117227

  • Direct Optical Vortex Laser Printing of a Microdot with Close-Packed and Sintered Gold Nanoparticles Reviewed

    Haruki Kawaguchi, Rong Wei, Keisaku Yamane, Ken-ichi Yuyama, Satoyuki Kawano, Ryuji Morita, Kohei Toyoda, Katsuhiko Miyamoto, Takashige Omatsu

    Conference on Lasers and Electro-Optics   2022

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    Publishing type：Research paper (international conference proceedings)  

    We demonstrate the direct printing of an ultrafine microdot formed of gold nanoparticles by employing optical vortex laser induced forward transfer. Spin and orbital angular momentum induces the close-packing and sintering of gold nanoparticles.

    DOI： 10.1364/cleo_si.2022.stu4h.2

  • Optical vortex induced microdroplet with a plasmonic nanocore Reviewed

    Haruki Kawaguchi, Kei Umesato, Kanta Takahashi, Keisaku Yamane, Ken-ichi Yuyama, Satoyuki Kawano, Katsuhiko Miyamoto, Takadhige Omatsu

    Optical Manipulation and Structured Materials Conference 2021   2021.10

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    Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1117/12.2616033

  • Generation of hexagonal close-packed ring-shaped structures using an optical vortex Reviewed

    Haruki Kawaguchi, Kei Umesato, Kanta Takahashi, Keisaku Yamane, Ryuji Morita, Ken-ichi Yuyama, Satoyuki Kawano, Katsuhiko Miyamoto, Michinari Kohri, Takashige Omatsu

    Nanophotonics   11 ( 4 )   855 - 864   2021.10（ ISSN:2192-8606 ） （ eISSN:2192-8614 ）

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    Publishing type：Research paper (scientific journal)  

    <title>Abstract</title>
    An optical vortex possesses a ring-shaped spatial profile and orbital angular momentum (OAM) owing to its helical wavefront. This form of structured light has garnered significant attention in recent years, and it has enabled new investigations in fundamental physics and applications. One such exciting application is laser-based material transfer for nano-/micro-fabrication. In this work, we demonstrate the application of a single-pulse optical vortex laser beam for direct printing of ring-shaped structures composed of hexagonal close-packed, mono-/multi-layered nanoparticles which exhibit ‘structural color’. We compare and contrast the interaction of the vortex beam with both dielectric and metallic nanoparticles and offer physical insight into how the OAM of vortex beams interacts with matter. The demonstrated technique holds promise for not only photonic-based nano-/micro-fabrication, but also as a means of sorting particles on the nanoscale, a technology which we term ‘optical vortex nanoparticle sorting’.

    DOI： 10.1515/nanoph-2021-0437

    Other URL： https://www.degruyter.com/document/doi/10.1515/nanoph-2021-0437/pdf

  • Optical Trapping of Nanocrystals at Oil/Water Interfaces: Implications for Photocatalysis Reviewed

    Yasuyuki Tsuboi, Shota Naka, Daiki Yamanishi, Tatsuya Nagai, Ken-ichi Yuyama, Tatsuya Shoji, Bunsho Ohtani, Mamoru Tamura, Takuya Iida, Tatsuya Kameyama, Tsukasa Torimoto

    ACS Applied Nano Materials   2021.10（ ISSN:2574-0970 ） （ eISSN:2574-0970 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsanm.1c02335

  • Incoherent Optical Tweezers on Black Titanium Reviewed

    Sayaka Hashimoto, Yuki Uenobo, Ryota Takao, Ken-ichi Yuyama, Tatsuya Shoji, Denver P. Linklater, Elena Ivanova, Saulius Juodkazis, Tatsuya Kameyama, Tsukasa Torimoto, Yasuyuki Tsuboi

    ACS Applied Materials & Interfaces   13 ( 23 )   27586 - 27593   2021.06（ ISSN:1944-8244 ） （ eISSN:1944-8252 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsami.1c04929

  • Optical Force-Induced Chemistry at Solution Surfaces Reviewed

    Hiroshi Masuhara, Ken-ichi Yuyama

    Annual Review of Physical Chemistry   72 ( 1 )   565 - 589   2021.04（ ISSN:0066-426X ） （ eISSN:1545-1593 ）

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    Publishing type：Research paper (scientific journal)  

    When an intense 1,064-nm continuous-wave laser is tightly focused at solution surfaces, it exerts an optical force on molecules, polymers, and nanoparticles (NPs). Initially, molecules and NPs are gathered into a single assembly inside the focus, and the laser is scattered and propagated through the assembly. The expanded laser further traps them at the edge of the assembly, producing a single assembly much larger than the focus along the surface. Amino acids and inorganic ionic compounds undergo crystallization and crystal growth, polystyrene NPs form periodic arrays and disklike structures with concentric circles or hexagonal packing, and Au NPs demonstrate assembling and swarming, in which the NPs fluctuate like a group of bees. These phenomena that depend on laser polarization are called optically evolved assembling at solution surfaces, and their dynamics and mechanisms are elucidated in this review. As a promising application in materials science, the optical trapping assembly of lead halide perovskites, supramolecules, and aggregation-induced emission enhancement–active molecules is demonstrated and future directions for fundamental study are discussed.

    DOI： 10.1146/annurev-physchem-090419-044828

  • Heterojunction Perovskite Microrods Prepared by Remote‐Controlled Vacancy Filling and Halide Exchange Reviewed

    Md Shahjahan, Ken‐ichi Yuyama, Takuya Okamoto, Vasudevanpillai Biju

    Advanced Materials Technologies   6 ( 2 )   2000934 - 2000934   2021.02（ ISSN:2365-709X ） （ eISSN:2365-709X ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/admt.202000934

    Other URL： https://onlinelibrary.wiley.com/doi/full-xml/10.1002/admt.202000934

  • Anomalously Large Assembly Formation of Polystyrene Nanoparticles by Optical Trapping at the Solution Surface Reviewed

    Chi-Lung Wu, Shun-Fa Wang, Tetsuhiro Kudo, Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

    Langmuir   36 ( 47 )   14234 - 14242   2020.12（ ISSN:0743-7463 ） （ eISSN:1520-5827 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.langmuir.0c02349

    PubMed

  • Spatio-temporally-controlled synthesis of lead halide perovskite crystals by laser trapping Reviewed

    Ken-ichi Yuyama, Islam Md Jahidul, Vasudevanpillai Biju

    Optical Manipulation and Structured Materials Conference 2020   2020.06

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    Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1117/12.2573760

  • Remote Tuning of Bandgap and Emission of Lead Perovskites by Spatially Controlled Halide Exchange Reactions Reviewed

    Md Jahidul Islam, Md Shahjahan, Ken-ichi Yuyama, Vasudevanpillai Biju

    ACS Materials Letters   2 ( 4 )   403 - 408   2020.04（ ISSN:2639-4979 ） （ eISSN:2639-4979 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsmaterialslett.0c00036

  • Nonradiative Energy Transfer through Distributed Bands in Piezochemically Synthesized Cesium and Formamidinium Lead Halide Perovskites Reviewed

    Sankaramangalam Balachandran Bhagyalakshmi, Sushant Ghimire, Kiyonari Takahashi, Ken‐ichi Yuyama, Yuta Takano, Takayoshi Nakamura, Vasudevanpillai Biju

    Chemistry – A European Journal   26 ( 10 )   2133 - 2137   2020.02（ ISSN:0947-6539 ） （ eISSN:1521-3765 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/chem.201904300

    Other URL： https://onlinelibrary.wiley.com/doi/full-xml/10.1002/chem.201904300

  • Mixed-halide perovskite synthesis by chemical reaction and crystal nucleation under an optical potential Reviewed

    Md Jahidul Islam, Ken-ichi Yuyama, Kiyonori Takahashi, Takayoshi Nakamura, Katsuaki Konishi, Vasudevanpillai Biju

    NPG Asia Materials   11 ( 1 )   2019.12（ ISSN:1884-4049 ） （ eISSN:1884-4057 ）

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    Publishing type：Research paper (scientific journal)  

    Abstract

    The development of new methods to engineer lead halide perovskite crystals with a controlled band gap and emission properties is an active subject in materials science and chemistry. We present the preparation of mixed-halide lead perovskites by spatially- and temporally- controlled chemical reactions and crystal growth under an optical potential in unsaturated precursor solutions. The crystals are characterized by transmission and photoluminescence spectral measurements and X-ray diffraction analysis. When compared with the spontaneous formation of multiple crystals in saturated precursor solutions, the optical potential creates large single crystals with a high chloride composition, providing distinct blue and green fluorescent crystals of chloride–bromide lead perovskites. We discuss the formation of mixed-halide perovskites from the viewpoints of an increased rate of chemical reaction via the formation and desolvation of precursor complexes and a decreased free energy potential.

    DOI： 10.1038/s41427-019-0131-0

    Other URL： http://www.nature.com/articles/s41427-019-0131-0

  • In situ reflection imaging and microspectroscopic study on three-dimensional crystal growth of L-phenylalanine under laser trapping Reviewed

    Jim Jui-Kai Chen, Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

    Applied Physics Express   12 ( 11 )   112008 - 112008   2019.11（ ISSN:1882-0778 ） （ eISSN:1882-0786 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.7567/1882-0786/ab4a9e

    Other URL： http://iopscience.iop.org/article/10.7567/1882-0786/ab4a9e/pdf

  • Nonradiative Energy Transfer through Distributed Bands in Piezochemically Synthesized Cesium and Formamidinium Lead Halide Perovskites Reviewed

    Sankaramangalam Balachandran Bhagyalakshmi, Sushant Ghimire, Kiyonari Takahashi, Ken-ichi Yuyama, Yuta Takano, Takayoshi Nakamura, Vasudevanpillai Biju

    Chemistry – A European Journal   2019.11

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/chem.201904300

  • Photoinduced Photoluminescence Enhancement in Self-assembled Clusters of Formamidinium Lead Bromide Perovskite Nanocrystals Reviewed

    Sushant Ghimire, Vijayakumar C Nair, Chinnadurai Muthu, Ken-ichi Yuyama, Martin Vacha, Vasudevanpillai Biju

    Nanoscale   11   9335 - 9340   2019.03

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/C8NR10082A

  • Phase transfer reaction for the preparation of stable polymer-quantum dot conjugates Reviewed

    Geethy P. Gopalan, Ajith Nair Anil, Sushant Ghimire, Nidhin Joy, Ken-ichi Yuyama, Vasudevanpillai Biju, Raju Francis

    Journal of Photochemistry and Photobiology A: Chemistry   371   91 - 97   2019.02（ ISSN:1010-6030 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.jphotochem.2018.10.056

  • Amplified and Multicolor Emission from Films and Interfacial Layers of Lead Halide Perovskite Nanocrystals Reviewed

    Sushant Ghimire, Lata Chouhan, Yuta Takano, Kiyonori Takahashi, Takayoshi Nakamura, Ken-ichi Yuyama, Vasudevanpillai Biju

    ACS Energy Letters   4 ( 1 )   133 - 141   2019.01（ ISSN:2380-8195 ） （ eISSN:2380-8195 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsenergylett.8b01916

  • Kinetics of singlet oxygen sensing using 9-substituted anthracenederivatives Reviewed

    Devika Sasikumar, Reiko Kohara, Yuta Takano, Ken-ichi Yuyama, Vasudevanpillai Biju

    Journal of Chemical Sciences   131 ( 5 )   1 - 7   2019.01

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s12039-018-1578-1

  • Crystal Growth and Dissolution Dynamics of L-Phenylalanine Controlled by Solution Surface Laser Trapping Reviewed

    Ken-ichi Yuyama, Ding-Shiang Chiu, Yen-En Liu, Teruki Sugiyama, Hiroshi Masuhara

    Crystal Growth & Design   18 ( 11 )   7079 - 7087   2018.11（ ISSN:1528-7483 ） （ eISSN:1528-7505 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.cgd.8b01233

  • Crystallization of Methylammonium Lead Halide Perovskites by Optical Trapping Reviewed

    Ken-ichi Yuyama, Md Jahidul Islam, Kiyonori Takahashi, Takayoshi Nakamura, Vasudevanpillai Biju

    Angewandte Chemie International Edition   57 ( 41 )   13424 - 13428   2018.10（ ISSN:1433-7851 ） （ eISSN:1521-3773 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/anie.201806079

  • Blinking Suppression in Highly Excited CdSe/ZnS Quantum Dots by Electron Transfer under Large Positive Gibbs (Free) Energy Change Reviewed

    Elizabeth Mariam Thomas, Sushant Ghimire, Reiko Kohara, Ajith Nair Anil, Ken-ichi Yuyama, Yuta Takano, K. George Thomas, Vasudevanpillai Biju

    ACS Nano   12 ( 9 )   9060 - 9069   2018.09（ ISSN:1936-0851 ） （ eISSN:1936-086X ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsnano.8b03010

  • Pseudopolymorph Control of L-Phenylalanine Achieved by Laser Trapping Reviewed

    Chi-Shiun Wu, Pei-Yun Hsieh, Ken-ichi Yuyama, Hiroshi Masuhara, Teruki Sugiyama

    Crystal Growth & Design   18 ( 9 )   5417 - 5425   2018.09（ ISSN:1528-7483 ） （ eISSN:1528-7505 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.cgd.8b00796

  • Bubble generation and molecular crystallization at solution surface by intense continuous-wave laser irradiation Reviewed

    Jim Jui-Kai Chen, Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

    Applied Physics Express   11 ( 8 )   085502 - 085502   2018.08（ ISSN:1882-0778 ） （ eISSN:1882-0786 ）

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  • Quantum dot–polymer conjugates for stable luminescent displays Reviewed

    Sushant Ghimire, Anjaly Sivadas, Ken-ichi Yuyama, Yuta Takano, Raju Francis, Vasudevanpillai Biju

    Nanoscale   10   13368 - 13374   2018.04

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/C8NR01501E

  • Rapid localized crystallization of lysozyme by laser trapping Reviewed

    Ken-ichi Yuyama, Kai-Di Chang, Jing-Ru Tu, Hiroshi Masuhara, Teruki Sugiyama

    Physical Chemistry Chemical Physics   20   6034 - 6039   2018.01

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/c7cp06990a

  • Femtosecond-Laser-Enhanced Amyloid Fibril Formation of Insulin Reviewed

    Tsung-Han Liu, Ken-ichi Yuyama, Takato Hiramatsu, Naoki Yamamoto, Eri Chatani, Hiroshi Miyasaka, Teruki Sugiyama, Hiroshi Masuhara

    Langmuir   33 ( 33 )   8311 - 8318   2017.08（ ISSN:0743-7463 ） （ eISSN:1520-5827 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.langmuir.7b01822

  • Blue-Emitting Electron-Donor/Acceptor Dyads for Naked-Eye Fluorescence Detection of Singlet Oxygen Reviewed

    Reiko Kohara, Ken-ichi Yuyama, Yasushi Shigeri, Vasudevanpillai Biju

    ChemPhotoChem   1 ( 7 )   299 - 303   2017.07（ ISSN:2367-0932 ）

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    Publishing type：Research paper (scientific journal)  

    Singlet oxygen (O-1(2)) and other reactive oxygen species receive great attention in chemistry and biology. Fluorescence sensing is one of the most promising and widely used techniques in the detection of O-1(2). Nonetheless, the selectivity and sensitivity of O-1(2) detection are highly depended on the structure, absorption band, stability and emission color of the fluorogenic sensor. We introduce novel and simple intramolecular electron donor-acceptor dyads that selectively and sensitively emit intense blue light in response to O-1(2). The systematic changes in the emission intensity of the sensors allow detection of O-1(2) by the naked-eye. Furthermore, the blue-shifted absorption and blue emission bands of the sensors ensure selective excitation of common photosensitizers using visible light. The sensors are synthesized by a simple and single-step reaction, which when combined with the exceptionally high stability of the sensors against visible-light irradiation, makes them promising tools for O-1(2) detection in chemistry, biochemistry, materials science and the life sciences.

    DOI： 10.1002/cptc.201700046

  • A Single Spherical Assembly of Protein Amyloid Fibrils Formed by Laser Trapping Reviewed

    Ken-ichi Yuyama, Mariko Ueda, Satoshi Nagao, Shun Hirota, Teruki Sugiyama, Hiroshi Masuhara

    Angewandte Chemie International Edition   56 ( 24 )   6739 - 6743   2017.06（ ISSN:1433-7851 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/anie.201702352

  • Photocontrolled Supramolecular Assembling of Azobenzene-Based Biscalix[4]arenes upon Starting and Stopping Laser Trapping Reviewed

    Ken-ichi Yuyama, Lionel Marcelis, Pei-Mei Su, Wen-Sheng Chung, Hiroshi Masuhara

    Langmuir   33 ( 3 )   755 - 763   2017.01（ ISSN:0743-7463 ） （ eISSN:1520-5827 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.langmuir.6b03780

  • Optically Evolved Assembly Formation in Laser Trapping of Polystyrene Nanoparticles at Solution Surface Reviewed

    Shun-Fa Wang, Tetsuhiro Kudo, Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

    Langmuir   32 ( 47 )   12488 - 12496   2016.11（ ISSN:0743-7463 ） （ eISSN:1520-5827 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.langmuir.6b02433

  • Light propagation in optical trapping assembling of colloidal particles at an interface Reviewed

    T. Kudo, S. F. Wang, K. Yuyama, H. Masuhara

    SPIE Proceedings   2016.09（ ISSN:0277-786X ）

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    Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1117/12.2235272

  • Reflection Microspectroscopic Study of Laser Trapping Assembling of Polystyrene Nanoparticles at Air/Solution Interface Reviewed

    Shun-Fa Wang, Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

    The Journal of Physical Chemistry C   120 ( 29 )   15578 - 15585   2016.07（ ISSN:1932-7447 ） （ eISSN:1932-7455 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.jpcc.5b03917

  • Optical Trapping-Formed Colloidal Assembly with Horns Extended to the Outside of a Focus through Light Propagation Reviewed

    Tetsuhiro Kudo, Shun-Fa Wang, Ken-ichi Yuyama, Hiroshi Masuhara

    Nano Letters   16 ( 5 )   3058 - 3062   2016.05（ ISSN:1530-6984 ） （ eISSN:1530-6992 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.nanolett.6b00123

  • Two-Dimensional Growth Rate Control of <scp>l</scp>-Phenylalanine Crystal by Laser Trapping in Unsaturated Aqueous Solution Reviewed

    Ken-ichi Yuyama, Jino George, K. George Thomas, Teruki Sugiyama, Hiroshi Masuhara

    Crystal Growth &amp; Design   16 ( 2 )   953 - 960   2016.02（ ISSN:1528-7483 ） （ eISSN:1528-7505 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acs.cgd.5b01505

  • 22aBH-9 Laser trapping and assembly growth of colloidal particles enabled by light propagation Reviewed

    Kudo T., Wang S., Yuyama K., Masuhara H.

    Meeting Abstracts of the Physical Society of Japan   71   1631 - 1631   2016（ ISSN:2189-079X ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.11316/jpsgaiyo.71.1.0_1631

    CiNii Article

  • Highly-integrated, laser manipulable aqueous metal carbonyl vesicles (MCsomes) with aggregation-induced emission (AIE) and aggregation-enhanced IR absorption (AEIRA) Reviewed

    Nimer Murshid, Ken-ichi Yuyama, San-Lien Wu, Kuan-Yi Wu, Hiroshi Masuhara, Chien-Lung Wang, Xiaosong Wang

    Journal of Materials Chemistry C   4 ( 23 )   5231 - 5240   2016（ ISSN:2050-7526 ） （ eISSN:2050-7534 ）

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    Publishing type：Research paper (scientific journal)  

    <p>Stable and laser manipulable iron-carbonyl aqueous vesicles with aggregation-enhanced IR absorption and emission are reported.</p>

    DOI： 10.1039/c6tc01222a

  • Dynamics and Mechanism of Laser Trapping-Induced Crystal Growth of Hen Egg White Lysozyme Reviewed

    Jing-Ru Tu, Ken-ichi Yuyama, Hiroshi Masuhara, Teruki Sugiyama

    Crystal Growth & Design   15 ( 10 )   4760 - 4767   2015.10（ ISSN:1528-7483 ） （ eISSN:1528-7505 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/cg501860k

  • Laser trapping and assembling of nanoparticles at solution surface studied by reflection micro-spectroscopy Reviewed

    Shun-Fa Wang, Ken-ichi Yuyama, Teruki Suigiyama, Hiroshi Masuhara

    SPIE Proceedings   2015.08（ ISSN:0277-786X ）

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    Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1117/12.2187636

  • Optical trapping assembling of clusters and nanoparticles in solution by CW and femtosecond lasers Reviewed

    Hiroshi Masuhara, Teruki Sugiyama, Ken-ichi Yuyama, Anwar Usman

    Optical Review   22 ( 1 )   143 - 148   2015.02（ ISSN:1340-6000 ） （ eISSN:1349-9432 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s10043-015-0029-1

    Other URL： http://link.springer.com/article/10.1007/s10043-015-0029-1/fulltext.html

  • Crystal Growth of Lysozyme Controlled by Laser Trapping Reviewed

    Jing-Ru Tu, Atsushi Miura, Ken-ichi Yuyama, Hiroshi Masuhara, Teruki Sugiyama

    Crystal Growth & Design   14 ( 1 )   15 - 22   2014.01（ ISSN:1528-7483 ） （ eISSN:1528-7505 ）

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    Publishing type：Research paper (scientific journal)  

    We demonstrate the growth of a tetragonal crystal of hen egg-white lysozyme (HEWL) in D2O buffer solution controlled by laser trapping with a focused continuous-wave (CW) near-infrared (NIR) laser beam. The focal spot was located at 10 mu m away from the edge of the target crystal that was generated spontaneously, and the crystal growth was observed although the focal spot size was much smaller than the distance. The growth rate of (101) and {110} faces of the tetragonal crystal was examined with various laser powers and polarizations. The rate observed under the irradiation was much different from those in spontaneous growth, namely, the growth rate of the {1 10} face showed a large decrease or increase depending on the irradiation time. The dynamics and mechanism of this unusual crystal growth behavior is discussed from the viewpoint of a large stable domain formation of the HEWL liquidlike clusters through liquid nucleation and growth and by considering the anisotropy of the cluster domain.

    DOI： 10.1021/cg401065h

  • Laser trapping-induced crystallization of L-phenylalanine through its high-concentration domain formation Reviewed

    Ken-ichi Yuyama, Chi-Shiun Wu, Teruki Sugiyama, Hiroshi Masuhara

    ROYAL SOC CHEMISTRY　PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES   13 ( 2 )   254 - 260   2014（ ISSN:1474-905X ）

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    Publishing type：Research paper (scientific journal)  

    We present the laser trapping-induced crystallization of L-phenylalanine through high-concentration domain formation in H2O and D2O solutions which is achieved by focusing a continuous-wave (CW) near-infrared laser beam at the solution surface. Upon laser irradiation into the H2O solution, laser trapping of the liquid-like clusters increases the local concentration, accompanying laser heating, and a single plate-like crystal is eventually prepared at the focal spot. On the other hand, in the D2O solution, a lot of the monohydrate needle-like crystals are observed, not at the focal spot where the concentration is high enough to trigger crystal nucleation, but in the 0.5-1.5 mm range from the focal spot. The dynamics and mechanism of the amazing crystallization behaviour induced by laser trapping are discussed from the viewpoints of the concentration increase due to laser heating depending on solvent, the large high-concentration domain formation by laser trapping of liquid-like clusters, and the orientational disorder of molecules/clusters at the domain edge.

    DOI： 10.1039/c3pp50276g

  • Laser trapping dynamics of 200 nm-polystyrene particles at a solution surface Reviewed

    Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

    SPIE Proceedings   2013.09（ ISSN:0277-786X ）

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    Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1117/12.2023020

  • Laser Trapping and Crystallization Dynamics of <scp>l</scp>-Phenylalanine at Solution Surface Reviewed

    Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

    The Journal of Physical Chemistry Letters   4 ( 15 )   2436 - 2440   2013.08（ ISSN:1948-7185 ） （ eISSN:1948-7185 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/jz401122v

  • Laser Trapping Chemistry: From Polymer Assembly to Amino Acid Crystallization Reviewed

    Teruki Sugiyama, Ken-ichi Yuyama, Hiroshi Masuhara

    Accounts of Chemical Research   45 ( 11 )   1946 - 1954   2012.11（ ISSN:0001-4842 ） （ eISSN:1520-4898 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/ar300161g

  • Laser trapping dynamics of L-alanine depending on the laser polarization Reviewed

    Ken-ichi Yuyama, Kei Ishiguro, Teruki Sugiyama, Hiroshi Masuhara

    SPIE Proceedings   2012.10（ ISSN:0277-786X ）

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    Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1117/12.929381

  • Selective Fabrication of α- and γ-Polymorphs of Glycine by Intense Polarized Continuous Wave Laser Beams Reviewed

    Ken-ichi Yuyama, Thitiporn Rungsimanon, Teruki Sugiyama, Hiroshi Masuhara

    Crystal Growth & Design   12 ( 5 )   2427 - 2434   2012.05（ ISSN:1528-7483 ） （ eISSN:1528-7505 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/cg300065x

  • Formation, Dissolution, and Transfer Dynamics of a Millimeter-Scale Thin Liquid Droplet in Glycine Solution by Laser Trapping Reviewed

    Ken-ichi Yuyama, Thitiporn Rungsimanon, Teruki Sugiyama, Hiroshi Masuhara

    The Journal of Physical Chemistry C   116 ( 12 )   6809 - 6816   2012.03（ ISSN:1932-7447 ） （ eISSN:1932-7455 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/jp210576k

  • Laser-trapping assembling dynamics of molecules and proteins at surface and interface Reviewed

    Hiroshi Masuhara, Teruki Sugiyama, Thitiporn Rungsimanon, Ken-ichi Yuyama, Atsushi Miura, Jing-Ru Tu

    Pure and Applied Chemistry   83 ( 4 )   869 - 883   2011.03（ ISSN:0033-4545 ） （ eISSN:1365-3075 ）

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    Publishing type：Research paper (scientific journal)  

    Laser trapping of molecules and proteins in solution at room temperature is made possible by irradiating 1064-nm continuous-wave (CW) laser with power around 1 W. Although conventional small molecules are not trapped at the focal point, molecules that can form clusters upon assembling and proteins whose size is close to 10 nm are gathered, giving unique assembly structure. Glycine in H<sub>2</sub>O shows crystallization, urea in D<sub>2</sub>O gives a millimeter-sized giant droplet, and cobalt oxide-filled ferritin protein confirms assembly followed by precipitation. Solute concentration, solvent, and laser power are important factors for determining trapping and assembling phenomena, and the laser focal position is very critical. These unique behaviors are realized by setting the irradiation at the air/solution surface, inside the solution, and at the glass/solution interface. Laser trapping-induced crystallization, liquid/liquid phase separation, and precipitation are compared with the previous results and considered. After summarizing the results, we describe our future perspective and plans.

    DOI： 10.1351/pac-con-10-09-32

    Other URL： https://www.degruyter.com/downloadpdf/journals/pac/83/4/article-p869.xml

  • Nanoparticle preparation of quinacridone and beta-carotene using near-infrared laser ablation of their crystals Reviewed

    K. Yuyama, T. Sugiyama, T. Asahi, S. Ryo, I. Oh, H. Masuhara

    SPRINGER, APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING   101 ( 4 )   591 - 596   2010.12（ ISSN:0947-8396 ）

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    Publishing type：Research paper (scientific journal)  

    Quinacridone nanoparticles with a mean size of about 200 nm are successfully prepared using nanosecond near-infrared (NIR) laser ablation of its microcrystalline powders in heavy water. The absorption spectra of the formed colloidal solutions depend on the excitation wavelengths, which is eventually ascribed to number and energy of absorbed photons. beta-carotene has low photostability and is easily decomposed upon UV/VIS laser ablation of its solid, while its nanoparticles are prepared utilizing this NIR laser ablation technique. The advantage of nanoparticle preparation by NIR laser ablation is discussed.

    DOI： 10.1007/s00339-010-5922-7

  • Single droplet formation and crystal growth in urea solution induced by laser trapping Reviewed

    Ken-ichi Yuyama, Kei Ishiguro, Thitiporn Rungsimanon, Teruki Sugiyama, Hiroshi Masuhara

    SPIE Proceedings   2010.08（ ISSN:0277-786X ）

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    Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1117/12.860241

  • Millimeter-Scale Dense Liquid Droplet Formation and Crystallization in Glycine Solution Induced by Photon Pressure Reviewed

    Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

    The Journal of Physical Chemistry Letters   1 ( 9 )   1321 - 1325   2010.05（ ISSN:1948-7185 ） （ eISSN:1948-7185 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/jz100266t

  • Control of Crystal Polymorph of Glycine by Photon Pressure of a Focused Continuous Wave Near-Infrared Laser Beam Reviewed

    Thitiporn Rungsimanon, Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara, Norimitsu Tohnai, Mikiji Miyata

    The Journal of Physical Chemistry Letters   1 ( 3 )   599 - 603   2010.02（ ISSN:1948-7185 ） （ eISSN:1948-7185 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/jz900370x

  • Laser fabrication and crystallization of nano materials Reviewed

    Teruki Sugiyama, Tsuyoshi Asahi, Kenichi Yuyama, Hiroki Takeuchi, Hyeon-Gu Jeon, Yoichiroh Hosokawa, Hiroshi Masuhara

    Proceedings of SPIE   6891   689112   2008.02

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1117/12.771175

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MISC

  • 液状および固体状核形成を伴う L-フェニルアラニンの光捕捉結晶化 International journal

    柚山健一、杉山輝樹

    日本結晶学会誌   50 ( 4 )   2024.01

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    Authorship：Lead author   International / domestic magazine：Domestic journal  

    DOI： 10.19009/jjacg.50-4-05

  • Plasmonic Nano-Core Formation with Optical Vortex Laser Induced Forward Transfer Reviewed

    川口晴生, 梅里慧, 高橋幹太, 柚山健一, 山根啓作, 宮本克彦, 尾松孝茂

    応用物理学会春季学術講演会講演予稿集(CD-ROM)   68th   2021（ ISSN:2436-7613 ）

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    Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

    J-GLOBAL

  • Laser Trapping-Controlled Crystal Growth of Protein Reviewed

    45 ( 5 )   283 - 287   2017.05（ ISSN:0387-0200 ）

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    Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

    CiNii Article

  • Optical Trapping-Induced Formation of Large Cluster Domain of Amino Acids and Proteins Reviewed

    42 ( 10 )   156 - 760   2014.10（ ISSN:0387-0200 ）

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    Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

    CiNii Article

  • 液面変形を利用した集光レーザーの光圧による結晶化と相分離 Reviewed

    杉山 輝樹, 柚山 健一

    C & I commun : colloid & interface communication : newsletter from DCSC   37 ( 4 )   34 - 36   2012

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    Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

    CiNii Article

  • Crystal Growth Induced by Laser Trapping of Clusters in Solution Reviewed

    SUGIYAMA Teruki, YUYAMA Ken-ichi

    Journal of the Japanese Association for Crystal Growth   38 ( 3 )   169 - 176   2011.10（ ISSN:0385-6275 ）

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    Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

    There describe research results that control of crystal growth is achieved by applying photon pressure of a focused CW laser beam close to glycine crystals generated spontaneously in solution, and that the Ostwald ripening are successfully demonstrated. Note that photon pressure generated by the focused laser can make it possible to cause a growth of the crystal located far from the focal point with about 1μm. We confirm that a large dense area generated around the focal spot plays an important role for the crystal growth. Two novel phenomena of the formation of mm-sized dense liquid droplet and crystallization in unsaturated solution related to the formation of the large dense area are also presented. These provide a principal insight into the elucidation of mechanism and process of this long-distance crystal growth.

    CiNii Article

  • 光放射圧を用いたグリシン高濃度液滴の形成--光によって誘起される巨大分子集合体 (特集 光で新しい物性を創成する) Reviewed

    柚山 健一, 杉山 輝樹, 増原 宏

    光アライアンス   22 ( 4 )   1 - 4   2011.04（ ISSN:0917-026X ）

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    Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

    CiNii Article

  • Glycine crystallization and crystal growth induced by photon pressure Reviewed

    60 ( 3 )   177 - 181   2009.03（ ISSN:0451-2014 ）

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    Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

    CiNii Article

  • Preparation of Organic Dye Nanoparticles by Nanosecond Laser Ablation in a Poor Solvent Reviewed

    ASAHI Tsuyoshi, YUYAMA Kenichi, SUGIYAMA Teruki, MASUHARA Hiroshi

    The Review of laser engineering   33 ( 1 )   41 - 46   2005.01（ ISSN:0387-0200 ）

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    Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

    CiNii Article

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Presentations

  • レーザー光の運動量を駆使した微小液滴形成 Invited Domestic conference

    柚山健一

    第99 回レーザ加工学会講演会  2023.11 

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    Presentation type：Oral presentation (invited, special)  

    Venue：オンライン  

  • Formation of amyloid aggregates by blue laser irradiation to a cytochrome c solution International conference

    Ken-ichi Yuyama, Mai Miyazaki, Yasuyuki Tsuboi

    16th International Symposium on Nanomedicine (ISNM2023)  2023.11 

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    Presentation type：Poster presentation  

    Venue：Osaka  

  • レーザー光の運動量を駆使した分子集合制御 Invited Domestic conference

    柚山健一

    第25回プラズモニック化学シンポジウム  2023.11 

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    Presentation type：Symposium, workshop panel (nominated)  

  • 集光レーザーによるハロゲン化鉛ペロブスカイトの合成とイオン交換の時空間制御 Invited Domestic conference

    柚山健一

    第84回応用物理学会秋季学術講演会  2023.09 

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    Presentation type：Oral presentation (invited, special)  

    Venue：Kumamoto  

  • 光渦レーザー誘起前方転写による半球状液滴レーザーのマイクロパターニング

    柚山健一、川口晴生、魏　榕、尾松孝茂

    2023光化学討論会  2023.09 

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    Presentation type：Poster presentation  

  • Micropatterning of hemispherical lasing droplets by optical vortex laser-induced forward transfer International conference

    Ken-ichi Yuyama, Haruki Kawaguchi, Rong Wei, Takashige Omatsu

    SPIE Optics + Photonics  2023.08 

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    Presentation type：Oral presentation (general)  

    Venue：San Diego  

  • Microprinting of hemispherical droplet laser array with optical vortex laser-induced forward transfer International conference

    Ken-ichi Yuyama, Haruki Kawaguchi, Rong Wei, Takashige Omatsu

    The 31st International Conference on Photochemistry (ICP2023)   2023.07 

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    Presentation type：Oral presentation (general)  

    Venue：Sapporo  

  • Formation and manipulation of liquid microdroplets by optical forces Invited International conference

    Ken-ichi Yuyama

    Joint Workshop on Structured Laser and Matter 2023  2023.06 

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    Presentation type：Oral presentation (invited, special)  

    Venue：Hsinchu (Taiwan)  

  • Spatial manipulation of molecules and ions by optical forces Invited International conference

    Ken-ichi Yuyama

    NYCU (National Yang Ming Chiao Tung University) Spring Colloquium  2023.05 

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    Presentation type：Symposium, workshop panel (nominated)  

    Venue：Hsinchu (Taiwan)  

  • 集光レーザー型光ピンセットによる温度応答性イオン液 体の液滴形成 Domestic conference

    柚山 健一, 田中 真穂, 坪井 泰之

    第83回応用物理学会秋季学術講演会  2022.09 

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    Presentation type：Oral presentation (general)  

  • 光渦レーザー誘起前方転写による蛍光色素含有マイクロ液滴の２次元パターニング Domestic conference

    柚山 健一, 川口 晴生, 宮本 克彦, 尾松 孝茂

    2022年光化学討論会  2022.09 

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    Presentation type：Poster presentation  

  • Microprinting of fluorescent dye droplets by optical vortex laser induced forward transfer Domestic conference

    Ken-ichi Yuyama, Haruki Kawaguchi, Kei Umesato, Katsuhiko Miyamoto, Takashige Omatsu

    The 9th Optical Manipulation and Structured Materials Conference (OMC2022)  2022.04 

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    Presentation type：Oral presentation (general)  

  • 光渦レーザー誘起前方転写による蛍光色素溶液の微小液滴パターニング Domestic conference

    柚山健一, 川口晴生, 梅里慧, 宮本克彦, 尾松孝茂

    第69回応用物理学会春季学術講演会  2022.03 

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    Presentation type：Oral presentation (general)  

  • 光渦レーザー誘起前方転写による蛍光色素液滴のマイクロパターニング Domestic conference

    柚山健一, 川口晴生, 梅里慧, 宮本克彦, 尾松孝茂

    第２回光渦研究会  2022.03 

  • 2D micropatterning of fluorescent dye droplets by optical vortex laser induced forward transfer Domestic conference

    Ken-ichi Yuyama, Takashige Omatsu

    Photonics West 2022 On Demand  2022.02 

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    Presentation type：Oral presentation (general)  

  • Manipulation of molecules and nanoparticles by optical forces Invited Domestic conference

    Ken-ichi Yuyama

    CEFMS (Center for Emergent Functional Matter Science) Lecture, National Yang Ming Chiao Tung University, Taiwan  2021.12 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

  • レーザー光の力学作用を利用した物質操作 Invited Domestic conference

    千葉大応物スチューデントチャプター  2021.12 

  • 光渦レーザー誘起前方転写法による有機色素溶液の微小液滴パターニング Domestic conference

    柚山健一, 尾松孝茂

    2021年光化学討論会  2021.09 

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    Presentation type：Oral presentation (general)  

  • 光渦レーザー誘起前方転写による微小液滴のマイクロパターニング Domestic conference

    柚山 健一, 尾松 孝茂

    第82回応用物理学会秋季学術講演会  2021.09 

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    Presentation type：Oral presentation (general)  

  • 光渦レーザー誘起前方転写による微小液滴のマイクロパターニング Domestic conference

    柚山 健一, 尾松 孝茂

    第82回応用物理学会秋季学術講演会  2021.09 

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    Presentation type：Oral presentation (general)  

  • Optical trapping of amyloid fibrils of hen egg-white lysozyme Domestic conference

    Ken-ichi Yuyama, Mai Miyazaki, Yasuyuki Tsuboi

    The 8th Optical Manipulation and Structured Materials Conference (OMC2021)  2021.04 

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    Presentation type：Oral presentation (general)  

  • 光圧によるハロゲン化鉛ペロブスカイトのイオン交換反応制御 Domestic conference

    柚山 健一, エムディージャヒダルイスラム, エムディーシャジャハン, ヴァスデヴァンピライビジュ, 坪井 泰之

    光圧によるナノ物質操作と秩序の創生 第5回公開シンポジウム  2021.01 

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    Presentation type：Oral presentation (general)  

  • 界⾯での分⼦・ナノ粒⼦の光マニピュレーション Domestic conference

    柚山 健一

    分⼦研研究会（オンライン）「ナノ空間で光が織りなす分⼦操作・化学反応制御の新展開」  2020.12 

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    Presentation type：Oral presentation (general)  

  • Optical Manipulation at Interfaces and Application to Semiconductor Materials Domestic conference

    Ken-ichi Yuyama

    2020年web光化学討論会  2020.09 

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    Presentation type：Oral presentation (general)  

  • 光学的および化学的アプローチによるハロゲン化鉛ペロブスカイト結晶のバンドギャップ制御 Domestic conference

    柚山健一, エムディー シャジャハン, ビジュ バスデヴァンピライ

    第67回 応用物理学会春季学術講演会  2020.03 

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    Presentation type：Oral presentation (general)  

  • Optically-Controlled Synthesis and Modification of Lead Halide Perovskites under Laser Trapping Domestic conference

    Ken-ichi Yuyama, Md Shahjahan, Md Jahidul Islam, Vasudevanpillai Biju

    2019 International Symposium of RIES & CEFMS  2019.12 

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    Presentation type：Oral presentation (general)  

  • 光の力学作用を利用した分子集合制御 Domestic conference

    柚山健一, イスラムエムディージャヒダル, エムディーシャジャハン, ビジュバスデバンピライ

    第7回アライアンス若手研究交流会  2019.11 

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    Presentation type：Oral presentation (general)  

  • Crystallization and Anion Exchange Reaction of Lead Halide Perovskite by the Focused Laser Irradiation Domestic conference

    Yuyama Ken-ichi, Md Islam Jahidul, Md Shahjahan, Biju Vasudevanpillai

    JCCG-48  2019.10 

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    Presentation type：Oral presentation (general)  

  • Optically-induced selective halogen exchange of lead halide perovskite crystal Domestic conference

    Ken-ichi Yuyama, Md Jahidul Islam, Md Shahjahan, Vasudevanpillai Biju

    Optically-induced selective halogen exchange of lead halide perovskite crystal  2019.09 

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    Presentation type：Oral presentation (general)  

  • 集光レーザー照射下でのアニオン交換反応によるハロゲン化鉛ペロブスカイトのバンドギャップチューニング Domestic conference

    柚山健一, エムディー シャジャハン, エムディージャヒダル イスラム, ビジュ バスデバンピライ

    第80回 応用物理学会秋季学術講演会  2019.09 

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    Presentation type：Oral presentation (general)  

  • Optically-induced selective halogen exchange of lead halide perovskite crystal Domestic conference

    Ken-ichi Yuyama, Md Jahidul Islam, Md Shahjahan, Vasudevanpillai Biju

    2019.09 

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    Presentation type：Oral presentation (general)  

  • Crystallization of mixed halide lead perovskites by optical trapping Domestic conference

    Ken-ichi Yuyama, Md Jahidul Islam, Vasudevanpillai Biju

    Crystallization of mixed halide lead perovskites by optical trapping  2019.03 

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    Presentation type：Oral presentation (general)  

  • Synthesis and modification of lead halide perovskite crystals by optical trapping at interfaces Domestic conference

    Ken-ichi Yuyama, Md Jahidul Islam, Vasudevanpillai Biju

    The 66th JSAP Spring Meeting, 2019  2019.03 

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    Presentation type：Oral presentation (general)  

  • Crystallization of methylammonium lead halide perovskites controlled by laser trapping at solution surface Domestic conference

    Ken‐ichi Yuyama, Md Jahidul Islam, Vasudevanpillai Biju

    10th Asian Photochemistry Conference  2018.12 

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    Presentation type：Oral presentation (general)  

  • 光圧によるアミノ酸、タンパク質の結晶成長制御 Domestic conference

    Sugiyama Teruki, Yuyama Ken-ichi

    JCCG-47  2018.11 

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    Presentation type：Oral presentation (general)  

  • Crystallization of methylammonium lead halide perovskites spatiotemporally controlled by optical trapping Domestic conference

    Yuyama Ken-ichi, Md Jahidul Islam, Biju Vasudevan Pillai

    18th International Symposium on Advanced Organic Photonics (ISAOP-18)  2018.09 

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    Presentation type：Oral presentation (general)  

  • 酸性条件下でのニワトリ卵白リゾチームの光捕捉挙動 Domestic conference

    Yuyama Ken-ichi, Md Jahidul Islam, Biju Vasudevan Pillai

    2018.09 

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    Presentation type：Poster presentation  

  • Crystallization of Hybrid Organic-Inorganic Perovskite Compounds under Focused CW Laser Irradiation at the Air-Solution Interface Domestic conference

    Yuyama Ken-ichi, Biju Vasudevan Pillai

    Crystallization of Hybrid Organic-Inorganic Perovskite Compounds under Focused CW Laser Irradiation at the Air-Solution Interface  2018.03 

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    Presentation type：Oral presentation (general)  

  • 界面での半導体ナノ材料の光トラッピング Domestic conference

    Yuyama Ken-ichi, Biju Vasudevan Pillai

    界面での半導体ナノ材料の光トラッピング  2017.09 

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    Presentation type：Oral presentation (general)  

  • 気液界面への連続発振レーザー集光照射によるマイクロバブル発生とL-フェニルアラニン結晶化 Domestic conference

    柚山健一, 陳睿凱, ビジュヴァスデヴァンピライ, 杉山輝樹, 増原宏

    日本化学会 第97春季年会 (2017)  2017.03 

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    Presentation type：Oral presentation (general)  

  • 液面でのレーザートラッピングによる L-フェニルアラニン結晶成長・溶解ダイナミク ス：反射顕微分光による研究 Domestic conference

    柚山健一, 陳睿凱, 杉山輝樹, 増原宏

    2016年光化学討論会  2016.09 

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    Presentation type：Oral presentation (general)  

  • Reflection microspectroscopic study of optical trapping dynamics of L-phenylalanine and nanoparticle at solution surface Domestic conference

    Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

    SPIE Optics + Photonics 2016  2016.08 

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    Presentation type：Oral presentation (general)  

  • レーザー捕捉によるL-フェニルアラニン巨大クラスター集合体の形成、成長、溶解の制御 Domestic conference

    柚山健一, 杉山輝樹, 増原宏

    日本化学会 第96春季年会 (2016)  2016.03 

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    Presentation type：Oral presentation (general)  

  • 液面におけるレーザートラッピングダイナミクス：反射顕微分光による研究 Domestic conference

    柚山健一, 王順發, 陳睿凱, 杉山輝樹, 増原宏

    2015年光化学討論会  2015.09 

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    Presentation type：Oral presentation (general)  

  • Spatio-temporal formation of amyloid aggregates by laser trapping of domain-swapped dimeric cytochrome c Domestic conference

    Ken-ichi Yuyama, Mariko Ueda, Satoshi Nagao, Shun Hirota, Teruki Sugiyama, Hiroshi Masuhara

    SPIE Optics + Photonics 2015  2015.08 

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    Presentation type：Oral presentation (general)  

  • 分子集合体形成の時空間制御を可能にするレーザー捕捉法の開発 Domestic conference

    柚山健一, 杉山輝樹, 増原 宏

    日本化学会 第95春季年会 (2015)  2015.03 

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    Presentation type：Oral presentation (general)  

  • 光捕捉による液面での L-フェニルアラニン結晶成長制御 Domestic conference

    柚山健一, 杉山輝樹, 増原宏

    2014年光化学討論会  2014.10 

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    Presentation type：Oral presentation (general)  

  • Formation and manipulation of L-phenylalanine crystal by a laser beam focused at a solution surface Domestic conference

    Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

    SPIE Optics + Photonics 2014  2014.08 

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    Presentation type：Oral presentation (general)  

  • ナノ粒子の二次元集合や分子結晶化を可能とする界面レーザー捕捉法の開発 Domestic conference

    柚山健一, 杉山輝樹, 増原宏

    日本化学会第94春季年会(2014)  2014.03 

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    Presentation type：Oral presentation (general)  

  • 集光レーザービームの放射圧によるシトクロムcモノマー及びダイマーの光捕捉 Domestic conference

    柚山健一, 廣田俊, 上田真理子, 長尾聡, 杉山輝樹, 増原宏

    2013年光化学討論会  2013.09 

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    Presentation type：Oral presentation (general)  

  • Laser trapping dynamics of 200 nm-polystyrene particles at a solution surface Domestic conference

    Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

    SPIE Optics + Photonics 2013  2013.08 

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    Presentation type：Oral presentation (general)  

  • Laser trapping dynamics of L-alanine depending on the laser polarization Domestic conference

    Ken-ichi Yuyama, Teruki Sugiyama, Hiroshi Masuhara

    SPIE Optics + Photonics 2012  2012.08 

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    Presentation type：Oral presentation (general)  

  • 微視的な光捕捉が引き起こす巨視的なグリシン高濃度液滴の成長と溶解 Domestic conference

    柚山健一, 杉山輝樹, 増原宏

    2011年光化学討論会  2011.09 

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    Presentation type：Oral presentation (general)  

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Grant-in-Aid for Scientific Research

  • キラルな光の光圧を利用したフェニルアラニン誘導体の集合体形成

    学術変革領域研究(A)  2024

  • 光の力学作用を利用したペロブスカイト結晶のバンドギャップ制御

    Grant-in-Aid for Scientific Research(C)  2020.04

  • 光捕捉によるアミロイド集合体の時空間形成と蛍光解析によるそのダイナミクス解明

    Grant-in-Aid for Young Scientists(B)  2017.04

Charge of on-campus class subject

  • 化学実験1

    2024   Weekly class   Undergraduate

  • 無機化学特論

    2024   Weekly class   Graduate school

  • 無機化学特論B

    2024   Weekly class   Graduate school

  • 無機化学特論A

    2024   Weekly class   Graduate school

  • 化学特別演習2A

    2024   Intensive lecture   Graduate school

  • 化学特別演習1A

    2024   Intensive lecture   Graduate school

  • 化学特別研究2A

    2024   Intensive lecture   Graduate school

  • 化学特別研究1A

    2024   Intensive lecture   Graduate school

  • 研究企画ゼミナール

    2024   Intensive lecture   Graduate school

  • 化学特別演習5A

    2024   Intensive lecture   Graduate school

  • 化学特別演習4A

    2024   Intensive lecture   Graduate school

  • 化学特別演習3A

    2024   Intensive lecture   Graduate school

  • 化学特別研究5A

    2024   Intensive lecture   Graduate school

  • 化学特別研究4A

    2024   Intensive lecture   Graduate school

  • 化学特別研究3A

    2024   Intensive lecture   Graduate school

  • 基礎化学実験

    2024   Weekly class   Graduate school

  • 化学実験Ⅱ

    2024   Weekly class   Undergraduate

  • 化学実験Ⅰ

    2024   Weekly class   Undergraduate

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