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  • Title: Large-scale preparation of strawberry-like, AgNP-doped SiO2 microspheres using the electrospraying method.
    Author: Ma Z, Ji H, Tan D, Dong G, Teng Y, Zhou J, Guan M, Qiu J, Zhang M.
    Journal: Nanotechnology; 2011 Jul 29; 22(30):305307. PubMed ID: 21719963.
    Abstract:
    In this paper, we report on a novel strategy for the preparation of silver nanoparticle-doped SiO(2) microspheres (Ag-SMSs) with an interesting strawberry-like morphology using a simple and efficient electrospraying method. SEM (scanning electron microscopy), TEM (transmission electron microscopy), XRD (x-ray diffraction), EDS (energy-dispersive spectroscopy) and UV-vis spectra (ultraviolet-visible spectra) were applied to investigate the morphology, structure, composition and optical properties of the hybrid microspheres, and E. coli (Escherichia coli) was used as a model microbe to evaluate their antibacterial ability. The results showed that the Ag-SMSs were environmentally stable and washing resistant. The Ag-SMSs exhibited effective inhibition against proliferation of E. coli, and their antibacterial ability could be well preserved for a long time. The environmental stability, washing resistance, efficient antibacterial ability and simple but productive preparation method endowed the Ag-SMSs with great potential for practical biomedical applications.
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