・Waste-free CNF/highly dispersed, high-loading AgNPs composite ・Catalysts, conductors, antimicrobials, thermal control, solder paste Overview
Cellulose nanofiber (CNF) and silver nanoparticle (AgNPs) composites serve as excellent dispersible carriers that maximize silver’s conductivity, catalytic activity, and antimicrobial performance. CNF, being plant-derived and environmentally friendly, also aligns with SDG goals. Conventional wet reduction methods, however, generate wastewater and require washing steps, leading to environmental issues and complex processing. This invention introduces an ultrasonication-based method that both disperses CNF uniformly and reduces silver oxide to form CNF/AgNPs composites without harmful reagents. The simple, waste-free process offers higher silver loading and better silver dispersion than conventional methods, enhancing silver’s inherent properties.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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