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Characterization of the disinfection process using quaternary ammonium salts grafted cellulose fiber
Alternative TitleChem. J. Chin. Univ.-Chin.
Zhou, XR; Lu, DN; Shao, MJ; Xing, XD; Wang, XG; Liu, Z
2003-06-01
Source PublicationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN0251-0790
Volume24Issue:6Pages:1131-1135
AbstractCharacterization of disinfection process using quaternary ammonium salts grafted cellulose fiber was carried out with E. coli as a model bacteria. A rapid adsorption of E. coli. on the grafted fiber was identified, as indicated by the dramatic reduction of the concentration of viable cells in the suspensions. The adsorption as function of the fiber input indicates the dominating role of the electrostatic interaction between the fiber and E. coli. cell surface. The determination of oxygen uptake rate (OUR) was introduced to characterize the growth of E. coli. on the fiber surface. The adsorption of E. coli. on the fiber surface was observed with. scanning electron microscope (SEM), which showed the lysis of cell envelope along with the processing. The results obtained in the present, study show that the disinfection process is composed by two steps, in which the first step, i. e. the adsorption of E. coli. on the fiber surface driven by electrostatic interaction, is a fast reaction. While cell lysis, the second step, is a relatively slow reaction. The present study also shows the potential of OUR and SEM as fundamental tools in the development of antibacterial materials.; Characterization of disinfection process using quaternary ammonium salts grafted cellulose fiber was carried out with E. coli as a model bacteria. A rapid adsorption of E. coli. on the grafted fiber was identified, as indicated by the dramatic reduction of the concentration of viable cells in the suspensions. The adsorption as function of the fiber input indicates the dominating role of the electrostatic interaction between the fiber and E. coli. cell surface. The determination of oxygen uptake rate (OUR) was introduced to characterize the growth of E. coli. on the fiber surface. The adsorption of E. coli. on the fiber surface was observed with. scanning electron microscope (SEM), which showed the lysis of cell envelope along with the processing. The results obtained in the present, study show that the disinfection process is composed by two steps, in which the first step, i. e. the adsorption of E. coli. on the fiber surface driven by electrostatic interaction, is a fast reaction. While cell lysis, the second step, is a relatively slow reaction. The present study also shows the potential of OUR and SEM as fundamental tools in the development of antibacterial materials.
KeywordSurface Contact Disinfectant Quaternary Ammonium Salts (Qas) E. Coli Oxygen Uptake Rate
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
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Indexed BySCI
Language英语
WOS KeywordPOLYMERIC PHOSPHONIUM SALTS ; PYRIDINIUM-TYPE POLYMERS ; ANTIBACTERIAL ACTIVITY ; CATIONIC BIOCIDES ; MAIN-CHAIN ; CEPHALOSPORINS ; SEMISYNTHESIS
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000183863200048
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5271
Collection研究所(批量导入)
Affiliation1.Tsing Hua Univ, Dept Chem Engn, Beijing 100084, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhou, XR,Lu, DN,Shao, MJ,et al. Characterization of the disinfection process using quaternary ammonium salts grafted cellulose fiber[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2003,24(6):1131-1135.
APA Zhou, XR,Lu, DN,Shao, MJ,Xing, XD,Wang, XG,&Liu, Z.(2003).Characterization of the disinfection process using quaternary ammonium salts grafted cellulose fiber.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,24(6),1131-1135.
MLA Zhou, XR,et al."Characterization of the disinfection process using quaternary ammonium salts grafted cellulose fiber".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 24.6(2003):1131-1135.
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