| 초록 |
ZnO and Ag nanowire (NW) were investigated on the antibacterial performance and associated properties. Firstly, to evaluate the functional sustainment in an ozone disinfection system, ZnO films were subjected to ultraviolet–ozone treatment for different periods. Despite the morphological and chemical changes, the satisfactory antibacterial-activity against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) was sustained. Secondly, the antibacterial activity of a AgNW film were enhanced by 1200 kGy electron beam irradiation. Generated Ag-O islands improved the antibacterial activity from 93.5 to 97.3 % for S. aureus and 96.1 to 99.9 % for E. coli. Thirdly, the antibacterial activity of AgNW films was improved by post-heat treatment. With increasing the heating temperature, the AgNWs broke into more segments, and became more oxidized, and consequently the antibacterial activity increased from 31.7 to 94.7 % for S. aureus and from 57.0 to 98.7 % for E. coli. |
