Preparation and Antibacterial Effect of Polyamine Cotton Fiber Loaded with Cu~(2+)
- VernacularTitle:载铜抗菌棉纤维的制备及其抗菌性能
- Author:
Jun WANG
;
Jie GE
;
Hong XU
- Publication Type:Journal Article
- Keywords:
Environmental microbiology;
Metal;
Cotton fiber;
Antimicrobial
- From:
Journal of Environment and Health
1992;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the method for preparing the polyamine cotton fiber loaded with Cu2+ and to test the antibacterial effect of the cotton fiber. Methods The natural cotton fiber was treated through basification, epoxygenation, alkene amination and Cu2+ adsorption. 8 kinds of microorganisms were used for the bacteriostasis test. Results The modified fibers showed a good antimicrobial effect to gram-negative bacteria and the bacteriostasis value achieved 6. The minimal sterilization concentrations of the Cu2+-diethylene triamine cotton fiber, Cu2+-triethylene tetramine cotton fiber and Cu2+-tetraethylene pentamine cotton fiber were 12 mg/ml, 14 mg/ml and 10 mg/ml respectively. The antibacterial process of the cotton fiber included two parts, adsorption and sterilization. The acting site was on the cell membrane. A positive relationship was seen between the concentration of antibacterial cotton fiber and the dissolved rate of bacteria. Conclusion The metal ion fiber shows an excellent performance of broad-spectrum antibacterial effect, especially to gram-negative bacteria and may be the "contact killing" is the acting manner of the antibacterial cotton fiber.
