抗菌材料:生物试验的类型和条件对所测抗菌活性的影响。

IF 4.2 3区 化学 Q2 POLYMER SCIENCE Macromolecular Rapid Communications Pub Date : 2024-10-22 DOI:10.1002/marc.202400378
Baptiste Caron, Marc Maresca, Amelie Leroux, Marie Lemesle, Jean-Louis Coussegal, Yohann Guillaneuf, Catherine Lefay
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引用次数: 0

摘要

近年来,抗生素耐药性问题日益突出,因此需要抗菌材料来防止感染的发生。目前有不同类型的测试来证明材料的抗菌性能。由于每种测试技术都有其独特的要求,因此结果可能会出现差异。抗菌测试结果尤其会受到浸出和非浸出化合物不同作用模式的影响。通过将两性阳离子合成共聚物分散在聚氨酯基质中制备抗菌材料,研究了反应介质和接触时间对两种成熟测试结果的影响:ISO 22196 和 CERTIKA 测试结果的影响。结果表明,杀菌动力学与细菌有关,根据测试条件(盐浓度、接触时间或介质)的不同,可能会得出相互矛盾的结果。此外,自由溶液和抗菌表面的离子强度(称为盐效应)的影响也很突出。
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Antibacterial Materials: Influence of the Type and Conditions of Biological Tests on the Measured Antibacterial Activity.

In recent years, the growing problem of antibiotic resistance has highlighted the need for antibacterial materials to prevent the development of infections. Different types of tests exist to certify the antibacterial properties of materials. Variations in results can occur due to the unique requirements of each test technique. The antibacterial test result may be influenced, in particular, by the distinct modes of action of leaching and non-leaching compounds. Using antibacterial materials prepared by the dispersion of an amphiphilic cationic synthetic copolymer in a polyurethane matrix, the influence of the reaction medium and the contact time on the results obtained by two well-established tests: ISO 22196 and CERTIKA is investigated. This shows that the kinetics of killing is bacteria dependent and depending on the test conditions (concentration of salt, time of contact, or media), contradictory results could be obtained. Moreover, the influence of the ionic strength (called salt effect) in both free solution and antibacterial surface is highlighted.

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来源期刊
Macromolecular Rapid Communications
Macromolecular Rapid Communications 工程技术-高分子科学
CiteScore
7.70
自引率
6.50%
发文量
477
审稿时长
1.4 months
期刊介绍: Macromolecular Rapid Communications publishes original research in polymer science, ranging from chemistry and physics of polymers to polymers in materials science and life sciences.
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