Bactericidal effects of copper-polypyrrole composites modified with silver nanoparticles against gram-positive and gram-negative bacteria

IF 1 4区 化学 Q4 CHEMISTRY, MULTIDISCIPLINARY Journal of The Serbian Chemical Society Pub Date : 2023-01-01 DOI:10.2298/jsc230213047m
P. Marucci, M. Sica, L. Brugnoni, María González
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Abstract

The aim of this research is to study the bactericidal effects of copper-polypyrrole composites deposited onto 316L SS modified with silver nanoparticles. The antimicrobial properties were evaluated against twenty-four strains of Gram-positive and Gram-negative bacteria. Among the twenty-four strains studied, isolates included reference strains (E. coli ATCC 25922, E. coli 0157:H7 EDL 933, S. aureus ATCC 25923 and L. monocytogenes ATCC 7644), as well as strains isolated from food and clinical samples. The antimicrobial activity of the composites demonstrated that all PPy-modified films had antibacterial properties. Notably, Cu-PPyAgNp500 exhibited the strongest inhibitory activity against both Gram-negative and Gram-positive bacteria. Surface modification of 316L SS with these films is a promising and viable alternative for the development of novel antibacterial composites that can inhibit the growth of a significant number of bacteria.
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纳米银修饰铜-聚吡咯复合材料对革兰氏阳性和革兰氏阴性细菌的杀菌效果
本研究的目的是研究纳米银修饰的316L SS表面沉积铜-聚吡咯复合材料的杀菌效果。对24株革兰氏阳性菌和革兰氏阴性菌进行了抗菌性能评价。在研究的24株菌株中,分离株包括参考菌株(大肠杆菌ATCC 25922、大肠杆菌0157:H7 EDL 933、金黄色葡萄球菌ATCC 25923和单核增生乳杆菌ATCC 7644),以及从食品和临床样品中分离的菌株。复合材料的抗菌活性表明,所有ppy改性膜都具有抗菌性能。值得注意的是,Cu-PPyAgNp500对革兰氏阴性菌和革兰氏阳性菌均表现出最强的抑制活性。利用这些膜对316L SS进行表面改性是开发新型抗菌复合材料的一个有希望和可行的选择,可以抑制大量细菌的生长。
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来源期刊
CiteScore
1.80
自引率
0.00%
发文量
76
审稿时长
1 months
期刊介绍: The Journal of the Serbian Chemical Society -JSCS (formerly Glasnik Hemijskog društva Beograd) publishes articles original papers that have not been published previously, from the fields of fundamental and applied chemistry: Theoretical Chemistry, Organic Chemistry, Biochemistry and Biotechnology, Food Chemistry, Technology and Engineering, Inorganic Chemistry, Polymers, Analytical Chemistry, Physical Chemistry, Spectroscopy, Electrochemistry, Thermodynamics, Chemical Engineering, Textile Engineering, Materials, Ceramics, Metallurgy, Geochemistry, Environmental Chemistry, History of and Education in Chemistry.
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