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- W3094382390 abstract "Viral capsid-like particles tiled with mosaic patches have attracted great attention as they imitate nature’s design to achieve advanced material properties and functions. Here, we develop a facile one-pot soft-template method to synthesize biomimetic gold capsid-like colloids with tunable particle size and surface roughness. Uniform submicron-to-micron-sized hollow gold colloidal particles are successfully achieved by using tannic acids as soft templates and reducing agents, which first self-assemble into spherical complex templates before the reduction of Au3+ ions via their surface hydroxyl groups. The surface roughness, the size, and the total number of the patches of the prepared gold particles are further tuned, utilizing a mechanism that offers morphology control by varying the number of surface hydroxyl groups participating in the reduction reactions. Among different capsid-like gold colloids, those possessing a rough surface display superior catalytic properties and show promising results as surface-enhanced Raman spectroscopy (SERS) solid substrates for detecting small organic molecules and biomimetic enzymes in a liquid phase for sensing biomolecules in real samples. These capsid-like gold colloids are also expected to find practical applications in delivery systems, electronics, and optics. We believe that our strategy of imitating nature’s design of capsid-like structures should also be used in the design and fabrication of other functional colloidal particles." @default.
- W3094382390 created "2020-10-29" @default.
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- W3094382390 date "2020-10-21" @default.
- W3094382390 modified "2023-10-09" @default.
- W3094382390 title "Design and One-Pot Synthesis of Capsid-like Gold Colloids with Tunable Surface Roughness and Their Enhanced Sensing and Catalytic Performances" @default.
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- W3094382390 doi "https://doi.org/10.1021/acsami.0c14802" @default.
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