Development, analysis, and evaluation of substances with various new functions.
Monozukuri (Saitama University Research Seed Collection 2025-27 p.70)
Keywords: metal, metal complex, crystal structure, molecular structure, functional materials, color change, instrumental analysis
Compounds formed by the combination of metal ions with various organic or inorganic compounds are generally referred to as "metal complexes" (or "complex ions" in high school textbooks). The properties of a complex are determined by the structure surrounding the metal ion (what is bonded and what shape it takes) and the state of its electrons. Even with the same metal ion, completely different colors and properties can be obtained depending on the environment. In particular, the differences in color are vivid and are a very intriguing phenomenon. Moreover, these compounds are not only visually appealing but also highly functional, existing in both industrial products and natural substances. While it is enjoyable to develop methods for designing compounds that exhibit desired properties and synthesizing them as intended, I am also interested in the unexpected new properties that can sometimes be discovered, which drives my research. Through these studies, I am also working on improving various analytical techniques that can accommodate a wide range of applications.
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Takashi Fujiwara, Associate Professor Research Institute, Scientific Analysis Support Center 【Recent Research Themes】 ● Polymorphism of Crystals ● Condition Analysis of Products through Various Instrumental Analyses ● Water Quality Purification and Analysis
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【Appeal Points to the Industry】 ● Fields related to metal ions ● Fields based on color changes (emission color, light absorption) ● Elucidation of the crystal and molecular structure of substances ● Experience in joint research and commissioned research with major domestic companies and local governments ● Technical consulting using various analytical instruments (experience with major domestic companies, local governments, etc.) 【Examples of Practical Applications, Case Studies, and Utilization】 ● Development of position-selective catalysts using metal complexes (patent) ● Metal ion concentration measurement kit using organic dyes (patent) ● Development of a novel synthesis method for metal complexes as photoelectric conversion elements (patent) ● Honey and its production method (patent)
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Metal complex catalyst
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The Saitama University Open Innovation Center is a center that functions as a liaison office for industry-academia-government collaboration. It consists of three departments: the Industry-Academia-Government Collaboration Department, the Intellectual Property Department, and the Startup Support Department, each staffed with coordinators well-versed in various fields. The center's activities include solving technical challenges in companies, supporting the implementation of joint research, and conducting technology transfer aimed at introducing and utilizing Saitama University's intellectual property.