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Hokkaido University Collection of Scholarly and Academic Papers >
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Peer-reviewed Journal Articles, etc >
Alginate-Stabilized Gold Nanoparticles Prepared Using the Microwave-Induced Plasma-in-Liquid Process with Long-Term Storage Stability for Potential Biomedical Applications
| Title: | Alginate-Stabilized Gold Nanoparticles Prepared Using the Microwave-Induced Plasma-in-Liquid Process with Long-Term Storage Stability for Potential Biomedical Applications |
| Authors: | Liu, Haoran Browse this author | | Ikeda, Kai Browse this author | | Nguyen, Mai Thanh Browse this author | | Sato, Susumu Browse this author | | Matsuda, Naoki Browse this author | | Tsukamoto, Hiroki Browse this author | | Tokunaga, Tomoharu Browse this author | | Yonezawa, Tetsu Browse this author →KAKEN DB |
| Keywords: | Biopolymers | | Sodium | | Aggregation | | Metal nanoparticles | | Gold |
| Issue Date: | 9-Feb-2022 |
| Publisher: | American Chemical Society |
| Journal Title: | ACS Omega |
| Volume: | 7 |
| Issue: | 7 |
| Start Page: | 6238 |
| End Page: | 6247 |
| Publisher DOI: | 10.1021/acsomega.1c06769 |
| Abstract: | A one-step preparation of alginate-stabilized gold nanoparticles (Au NPs) using the microwave-induced plasma-in-liquid process (MWPLP) was reported. Effects of alginate with various concentrations on the preparation and properties of the synthesized Au NPs, including reaction rate, morphology, size, and optical absorption property, were studied. The introduction of alginate (1) accelerated the reaction rate, (2) prevented aggregation and precipitation due to long time discharge in MWPLP, and (3) provided long-term colloidal stability. An abnormal size change (from large to small) of Au NPs during particle growth, which was opposite to the typical change in bottom-up chemical reduction, was observed and a possible mechanism was proposed based on the dynamical and thermodynamical instability of particles during growth. The strategy of drying and redispersion of Au NPs in alginate solution was also studied. The drying and redispersion process had an imperceptible effect on the Au NPs. As a consequence, this strategy might be an effective technique for the long-term storage of Au NPs and other metal NPs. The alginate-stabilized Au NPs without the addition of toxic reducing or stabilizing agents can be appropriate to biomedical applications. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/85092 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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