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題名 | 載銀竹碳製備及抗菌效用評估=Studies on the Preparation and Antibacterial Activity of Bamboo Charcoal Supporting Silver |
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作者 | 楊福助; 丁自豪; 許綜升; 洪登南; Yang, F. C.; Ting, T. H.; Sheu, T. S.; Horng, D. N.; |
期刊 | 黃埔學報 |
出版日期 | 20070300 |
卷期 | 52(工程科學類) 2007.03[民96.03] |
頁次 | 頁133-141 |
分類號 | 440.34 |
語文 | chi |
關鍵詞 | 竹碳; 銀; 抗菌; 金黃色葡萄球菌; 大腸桿菌; 枯草桿菌; Bamboo charcoal; Silver; Antibacterial; S. aureus; E. coli; B. subtilis; |
中文摘要 | 載銀竹碳(BC/Ag)須經活化及化學還原過程來製備,BC/Ag 之特性可經由銀顆粒大小、分布、銀離子釋放和抗菌方面加以探討,透過SEM 和 TEM 可以表示出銀顆粒在竹碳上的分布狀況。TEM 顯示出銀粒徑小於150 nm,銀離子釋放最初與極限增加量介於8 和24 小時之間呈現;水中銀離子之釋放量在第24 小時出現進一步的上升,顯示竹碳複合物富含高量的銀。BC/Ag 複合物粉末經由最低抑菌濃度及最小殺菌濃度檢測方式對金黃色葡萄球菌、大腸桿菌及枯草桿菌展現出優越的抗菌作用。 |
英文摘要 | Bamboo charcoal supporting silver (BC/Ag) was prepared by activation and chemical reduction processes. The BC/Ag composites were characterized by silver particle size, distribution, silver ion (Ag+) release and antibacterial properties. Scanning and transmission electron microscopy (SEM and TEM) of the composites show uniform Ag particles distribution on the BC matrix. The Ag particle size is found to be less than 150 nm based on TEM. The Ag+ release increases initially which is followed by a marginal increase between hour 8 and 24. Composites containing higher amounts of silver exhibit a further rise in Ag+ release from the 24th hour of storage in water. The antibacterial effects of BC/Ag composite powders against S. aureus, E. coli and B. subtilis were examined by the minimum inhibitory concentrations (MIC) and minimum bactericidal concentrations (MBC) method, showing an excellent antibacterial performance. |
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