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A study of pyridinium‐type functional polymers. IV. Behavioral features of the antibacterial activity of insoluble pyridinium‐type polymers
Author(s) -
Li Guangji,
Shen Jiarui
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20001017)78:3<676::aid-app240>3.0.co;2-e
Subject(s) - pyridinium , polymer , adsorption , distilled water , antibacterial activity , adhesion , chemistry , pyridinium compounds , escherichia coli , polymer chemistry , chemical engineering , organic chemistry , bacteria , chromatography , biochemistry , biology , gene , engineering , genetics
The antibacterial activity of insoluble pyridinium‐type polymers with different structures against Escherichia coli suspended in sterilized and distilled water was investigated by a colony count method. The results show that the antibacterial activity of insoluble pyridinium‐type polymers, except for one containing I − , is characterized by an ability to capture bacterial cells in a living state by adsorption or adhesion, with the process of capturing bacterial cells being at least partially irreversible. This feature differs from the antibacterial activity of the corresponding soluble polymers, which is characterized by the ability to kill bacterial cells in water. In addition, insoluble pyridinium‐type polymers can also capture dead bacterial cells. This implies that insoluble pyridinium‐type polymers possess broad prospects for development in new water treatment techniques and whole‐cell immobilization techniques. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 676–684, 2000