journal article·2024-05-24Open access

Small Au Nanoparticles Synthesized by Peptide-Based Biomineralization for Catalytic Applications

Masayoshi Tanaka, Yuka Kiriki, Nozomi Kiyohara, Mirei Hayashi, Abiral Tamang, Tomonori Nakamura, Martin Vacha, Yonghyun Choi, Jonghoon Choi, Wataru Yoshida, Kevin Critchley, Stephen D. Evans, Mina Okochi

ACS Applied Nano Materials· Volume 7· Issue 10

Abstract

Biomineralization processes have garnered considerable attention owing to their potential for synthesizing functionally and technologically important nanomaterials in an environment-friendly manner. In this study, we synthesized small gold nanoparticles (AuNPs) ranging in size from 2.5 to 2.9 nm using three biomineralization peptides (G1:ETGHHIWEWM, G2:TQWHEWHWYQ, and G3:GMWHIEHIWL) without other supplements, such as reducing agents or triggers. Dynamic light scattering and thermogravimetric analyses confirmed the presence of peptide molecules on the synthesized AuNPs. We quantified the catalytic activity of the synthesized AuNPs by analyzing the reduction of 4-nitrophenol and methyl orange by borohydride. Overall, the AuNPs synthesized by peptide biomineralization exhibit catalytic properties and have the potential for the bioremediation of wastewater through environmentally friendly processes.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Nanocluster Synthesis and Applications · Advanced Nanomaterials in Catalysis · Diatoms and Algae Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro-ku, Tokyo 152-8552, Japan

Department of Chemical Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama-shi, Kanagawa 226-8503, Japan

School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom

School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea

Graduate School of Bionics, Tokyo University of Technology, 1404-1 Katakuramachi, Hachioji, Tokyo 192-0982, Japan

Funding

New Energy and Industrial Technology Development Organization · Murata Science Foundation · Japan Agency for Medical Research and Development · Moonshot Research and Development Program · Japan Society for the Promotion of Science · Cabinet Office, Government of Japan · Takahashi Industrial and Economic Research Foundation · Kose Cosmetology Research Foundation

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