多孔银-磁性甲壳素微球的制备及其抗菌性能
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TQ314.1

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Fabrication and Antibacterial Properties of Porous Sliver-Magnetic Chitin Microspheres
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    摘要:

    以甲壳素为原料制备可回收型抗菌材料,研究其抗菌效果,提高甲壳素在食品抑菌保藏等领域的应用。通过溶胶-凝胶、原位合成两步法制备银-磁性甲壳素微球,以大肠杆菌和金黄色葡萄球菌为对象,对其基本特性及抗菌性能进行表征评价。结果表明,材料呈三维多孔纳米纤维状球形,磁珠与纳米银嵌于纤维结构之中,纳米银能够快速、持续释放,对2种试验菌可通过破坏细菌结构完整性实现浓度相关性抗菌效果。

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    New recoverable antibacterial microspheres were fabricated by chitin, and the antibacterial effect of microsphere was studied to extend the application of chitin in fields such as food bacteriostatic preservation. Silver-magnetic chitin microspheres (Ag-Fe 3 O 4 -NMs) were prepared by sol-gel and in-situ synthesis methods. The microspheres were characterized and the antibacterial effect was studied on Escherichia coli and Staphylococcus aureus. The results showed that the antibacterial agent was 3D-porous nanofibrous spheres with magnetic beads and AgNP being embedded in the fiber structure. The AgNP in the microspheres could be released quickly and continuously, which showed a concentration-dependent antibacterial activity by destroying the structural integrity of the two test bacteria.

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江承佳,余宁翔,熊华.多孔银-磁性甲壳素微球的制备及其抗菌性能[J].食品与生物技术学报,2020,39(9):32-38.

JIANG Chengjia, YU Ningxiang, XIONG Hua. Fabrication and Antibacterial Properties of Porous Sliver-Magnetic Chitin Microspheres[J]. Journal of Food Science and Biotechnology,2020,39(9):32-38.

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  • 在线发布日期: 2020-11-26
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