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The Study of Antibacterial Properties of Anionic Polymer Modified Stainless Steel Surfaces

Abstract

细菌生物膜广泛存在于含水和潮湿的各种表面,生物膜中细菌的代谢活动可导致动植物及人类疾病发生,严重威胁人类健康,腐蚀管道和金属表面,降低传热能力,造成能源浪费。不锈钢是人类目前应用最广的金属材料之一,由于不锈钢表面细菌生物膜的生长,带来了严重的危害,而且吸附的生物膜很难清除,因此,要解决生物膜污染的这个问题,要从减少细菌吸附着手。 Nafion性质稳定,能够耐受高温,而且是一种生物相容型材料,由于其结构中含有磺酸基,在溶液中解离后可使修饰的表面带负电荷,由于大部分细菌表面呈负电性,因此用Nafion修饰后的不锈钢表面与细菌表面由于静电排斥力的作用,抑制细菌在不锈钢表面的吸附。利用沾取法在不锈钢...Bacteria attached to the surfaces are more resistant to disinfectants than free-living cells, thus biofilm has been a serious problem in many areas, such as food, environmental and biomedical, etc., and has posed many problems, like food spoilage, public health concerns, as well as energy and instrumental wastage. Stainless steel is one of the most commonly used materials in food industry and dail...学位:工学博士院系专业:化学化工学院_工业催化学号:2062010015362

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