Zhang Wei, Chu Paul K, Ji Junhui, Zhang Yihe, Ng Shuk Ching, Yan Qing
Department of Physics & Materials Science,City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
Biopolymers. 2006 Sep;83(1):62-8. doi: 10.1002/bip.20527.
The antibacterial characteristics of triclosan- or bronopol-coated and plasma-modified polyethylene (PE) are investigated. The modified PE samples exhibit excellent bactericidal effects against Escherichia coli and Staphylococcus aureus even when the bacteria concentration in the suspension is 10(6) colony forming units (CFU)/mL. However, when the concentration exceeds 10(8) CFU/mL, the materials fail to develop noticeable resistance to large amount of bacteria because of the formation of a bacterial biofilm on their surfaces. The PE treated by this relatively simple technique possesses excellent antimicrobial properties and is useful in biomedical and disinfection applications because the bacteria concentrations in most situations are well below 10(6) CFU/mL.
研究了用三氯生或溴硝醇涂层以及等离子体改性的聚乙烯（PE）的抗菌特性。即使悬浮液中的细菌浓度为10⁶菌落形成单位（CFU）/mL，改性后的PE样品对大肠杆菌和金黄色葡萄球菌仍表现出优异的杀菌效果。然而，当浓度超过10⁸CFU/mL时，由于材料表面形成细菌生物膜，它们无法对大量细菌产生明显抗性。通过这种相对简单的技术处理的PE具有优异的抗菌性能，并且在生物医学和消毒应用中很有用，因为在大多数情况下细菌浓度远低于10⁶CFU/mL。
