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Growth of virus-like mesoporous silica surface on various substrates. (a) Schematic illustration of the growth of virus-like mesoporous silica surface on various substrates. (b–e) TEM images of (b) Fe3O4@SiO2, (c) GO@SiO2, (d) Ag@SiO2, and (e) Au@SiO2 virus-like mesoporous core–shell structures.
