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Study of antibacterial performance of a type 304 Cu bearing stainless steel against airborne bacteria in real life environments
Y.; Zhang Yin, X.; Wang, D.; Nan, L.
2015
Source PublicationMaterials Technology
ISSN1066-7857
Volume30Issue:B2Pages:B104-B108
AbstractA type 304 Cu bearing stainless steel (304-Cu SS) possesses broad spectrum antibacterial properties in the laboratory environment. However, multiple bacterial species exist in real life environments, and some can cause severe diseases to humans. Therefore, a study of the antibacterial performance of 304-Cu SS in different real life environments is of importance. In this study, direct plate counting, transmission electron microscopy (TEM), confocal laser scanning microscope and scanning electron microscope (SEM) were used to investigate the antibacterial abilities of 304-Cu SS in three different real life environments, a clean room, a filter mesh in an air conditioning unit and a hand sink. The results showed that, after 24 h exposure to different environments, the antibacterial rates of the 304-Cu SS against planktonic airborne bacteria were 92.1% for the clean room, 85.7% for the filter mesh and 77.8% for the hand sink respectively, and the sessile bacteria from the hand sink and filter mesh adhered readily to the 304 SS. Compared to 304 SS, only a few sessile and planktonic bacteria adhered to the 304-Cu SS, indicating that 304-Cu SS with saturated Cu rich precipitates should possess obvious antibacterial ability against airborne bacteria and effectively inhibit the biofilm formation on its surface. In the clean room, only some planktonic airborne bacteria appeared on the surface of both steels. These results provided experimental evidence for practical applications of the 304-Cu SS in different real life environments.
description.department[yin, y. ; zhang, x. ; wang, d.] gen hosp shenyang millitary reg, shenyang 110016, peoples r china. [nan, l.] chinese acad sci, inst met res, shenyang 110016, peoples r china. ; wang, d (reprint author), gen hosp shenyang millitary reg, shenyang 110016, peoples r china. ; wdonghui@yahoo.com ; lnan@imr.ac.cn
KeywordCu Bearing Stainless Steel Airborne Bacteria Filter Mesh Clean Room Hand Sink Surfaces Resistance Biofilm Mechanism Contact
URL查看原文
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74007
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Y.,Zhang Yin, X.,Wang, D.,et al. Study of antibacterial performance of a type 304 Cu bearing stainless steel against airborne bacteria in real life environments[J]. Materials Technology,2015,30(B2):B104-B108.
APA Y.,Zhang Yin, X.,Wang, D.,&Nan, L..(2015).Study of antibacterial performance of a type 304 Cu bearing stainless steel against airborne bacteria in real life environments.Materials Technology,30(B2),B104-B108.
MLA Y.,et al."Study of antibacterial performance of a type 304 Cu bearing stainless steel against airborne bacteria in real life environments".Materials Technology 30.B2(2015):B104-B108.
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