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Escherichia coli sterilization and lipopolysaccharide inactivation using microwave-induced argon plasma at atmospheric pressure

Authors
 Bong Joo Park  ;  Kosuke Takatori  ;  Jong-Chul Park  ;  Soon O. Hyun  ;  Kie-Hyung Chung  ;  Jeong Koo Kim  ;  Hyun Joo Son  ;  Yeon I. Woo  ;  Dong-Wook Han  ;  Mi Hee Lee 
Citation
 SURFACE & COATINGS TECHNOLOGY, Vol.201(9-11) : 5738-5741, 2007 
Journal Title
 SURFACE & COATINGS TECHNOLOGY 
ISSN
 0257-8972 
Issue Date
2007
Abstract
Upon fabricating medical devices and biomaterials, the inactivation of microorganisms harmful to human is very important. It is more important to remove killed bacteria and their debris, particularly pyrogens such as lipopolysaccharide (LPS) from medical devices. LPS, referred to as endotoxin, is derived from the cell wall of gram-negative bacteria and well-known for inducing various pathological diseases. In this study, the sterilization of Escherichia coli (E. coli) and elimination of E. coli-derived LPS were examined by using our self-designed microwave-induced plasma system at atmospheric pressure. Plasma treatment resulted in complete sterilization of E. coli after 1 s, which was confirmed by morphological alterations such as ruptured membranes and amorphous structures. Furthermore, LPS was completely inactivated after 10 s of plasma treatment. These results suggest that microwave-induced plasma will not only be effective on E. coli sterilization, but will also be able to remove LPS from the surface of the objects being sterilized.
Full Text
http://www.sciencedirect.com/science/article/pii/S0257897206006086
DOI
10.1016/j.surfcoat.2006.07.039
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
Yonsei Authors
Park, Jong Chul(박종철) ORCID logo https://orcid.org/0000-0003-0083-5991
Son, Hyun Joo(손현주)
Woo, Yeon I.(우연이)
Lee, Mi Hee(이미희) ORCID logo https://orcid.org/0000-0002-9630-7044
Han, Dong Wook(한동욱)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/97376
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