Publishing type：Research paper (scientific journal)   International / domestic magazine：International journal  

DOI： 10.1039/d4nr01885k

PubMed

Authorship：Corresponding author   Publishing type：Research paper (scientific journal)   International / domestic magazine：International journal  

<jats:title>Abstract</jats:title><jats:p>The use of deicers in urban areas, on runways and aircrafts has raised concerns about their environmental impact. Understanding the ice-melting mechanism is crucial for developing environmentally friendly deicers, yet it remains challenging. This study employs machine learning to investigate the ice penetration capacity (IPC) of 21 salts and 16 organic solvents as deicers. Relationships between their IPC and various physical properties were analysed using extreme gradient boosting (XGBoost) and Shapley additive explanation (SHAP). Three key ice-melting mechanisms were identified: (1) freezing-point depression, (2) interactions between deicers and H<jats:sub>2</jats:sub>O molecules and (3) infiltration of ions into ice crystals. SHAP analysis revealed different ice-melting factors and mechanisms for salts and organic solvents, suggesting a potential advantage in combining the two. A mixture of propylene glycol (PG) and sodium formate demonstrated superior environmental impact and IPC. The PG and sodium formate mixture exhibited higher IPC when compared to six commercially available deicers, offering promise for sustainable deicing applications. This study provides valuable insights into the ice-melting process and proposes an effective, environmentally friendly deicer that combines the strengths of organic solvents and salts, paving the way for more sustainable practices in deicing.</jats:p>

DOI： 10.1038/s41598-024-62942-y

PubMed

Repository URL： http://hdl.handle.net/10466/0002001291

Publishing type：Research paper (scientific journal)   Kind of work：Joint Work   International / domestic magazine：Domestic journal  

<p>Soft actuators are gaining attention as flexible components for soft robotics. Responsive materials that respond to external stimuli such as light are often used as the driving part of the soft actuator. For example, thermo-responsive soft actuators are fabricated by bilayer polymer films of different thermal expansion coefficients. Heating of such bilayer polymer films by plasmon heating enables the soft actuators to be driven remotely by light. In the present study, we report the fabrication of plasmonic heating driven responsive soft actuators by using metal-organic framework (MOF) thin films as supports of plasmonic nanoparticles. The thin films of Cu₂(bpydc)₂ (bpydc = 2,2’-bipyridine-5,5’-dicarboxylate) of which metal ion adsorption capacity is high were fabricated on Cu₂(bpdc)₂ (bpdc = 4,4’-biphenyldicarboxylate) which grown on ceramics precursor, Cu(OH)₂. The actuating was operated by plasmon heating of Ag nanoparticles contained in MOF thin films inserted in between the two polymers, PDMS (poly(dimethylsiloxane)) and PVDC (poly(vinylidene chloride)). Two polymers have different thermal expansion coefficient so that they work as soft actuators by plasmon heating. Such fabrication process of soft actuators would pave the way for development of advanced devices in the field of soft robotics.</p>

DOI： 10.2497/jjspm.23-00070

Authorship：Corresponding author   Publishing type：Research paper (scientific journal)   Kind of work：Joint Work   International / domestic magazine：Domestic journal  

<p>Composites of DNA and gold nanoparticles are expected to be stimuli-responsive and photo-functional materials that can synergistically utilize both the stimuli-responsiveness derived from DNA and the optical properties derived from gold nanoparticles. However, conventional methods require the bottom-up synthesis of artificial DNA modified with functional groups such as thiols that can form chemical bonds with gold nanoparticles, which limits the flexible design of the resulting composite. Therefore, we conceived the idea of introducing a “linker” that can interact with both gold nanoparticles and the bases naturally exist in DNA. The introduction of such a linker allows naturally occurring DNA, which is abundant in nature and has long strand lengths, to utilize as the multi-functional material platform. In this work, we designed and synthesized a linker complex with disulfide group and platinum(II) ion to interact with gold nanoparticles and the bases of DNA, respectively. Furthermore, the interaction between gold nanoparticles and naturally occurring DNA via the platinum linker complex was confirmed using UV-visible absorption spectroscopy.</p>

DOI： 10.2497/jjspm.23-00071

Authorship：Corresponding author   Publishing type：Research paper (scientific journal)   Kind of work：Joint Work   International / domestic magazine：International journal  

DOI： 10.1021/acsomega.3c07310

PubMed

Repository URL： http://hdl.handle.net/10466/0002001290

Authorship：Lead author,　Last author,　Corresponding author   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)   International / domestic magazine：Domestic journal  

Authorship：Lead author   Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Kind of work：Joint Work   International / domestic magazine：Domestic journal  

Authorship：Lead author   Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Kind of work：Joint Work   International / domestic magazine：Domestic journal  

Authorship：Lead author   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)   Kind of work：Joint Work   International / domestic magazine：International journal