臺灣博碩士論文加值系統

本論文利用電火花放電法在無添加其他有毒化學物質下，於介電液中製備出奈米銀流體，並以麵團實驗來測試其不同濃度之殺菌效果。研究結果發現在加入總濃度100 ppm奈米銀的效果不佳，在加入總濃度60 ppm硝酸銀有明顯的效果，顯示其原因奈米銀解離率太差而導致效果不佳。利用電導導出銀離子並與碘結合為碘化銀，經霉菌抑菌實驗後得出碘化銀在六天後才生長出霉菌，抑菌效果優於單純的優碘。最後將銀的殺菌效能結合電紡，將高濃度的硝酸銀溶入10%的聚乙烯醇中，使紡出的電紡紗中混有奈米銀顆粒，並以U-V光譜機來驗證。電紡紗中的奈米銀會緩慢釋放銀離子，具有長效殺菌的功能。

Dielectric fluid used in this paper do not add other toxic chemicals, and the production of nano-silver fluid in the dielectric medium with a spark discharge method. Dough experiments to test its bactericidal effect of different concentrations. The results showed that: 100 ppm nano silver its bactericidal not good , 60 ppm silver nitrate its bactericidal well. The reason is that nano silver ion concentration is too low to cause bactericidal ineffective. The use of electrical conductivity method to synthesize silver ions and iodide ions become silver iodide. In bacteriostatic experiment: Six days later, the silver iodide grow mold, its bacteriostatic effect is better than Betadine. Finally, the combination of electrospinning nano silver. The high concentration of silver nitrate dissolved in 10% polyvinyl alcohol. Make nano silver particles coated electric spinning, then UV-Vis to verify. The Nano Silver electrospinning slowly releasing silver ions have long-lasting bactericidal function.

摘要 i
Abstract ii
誌謝 iii
目錄 iv
表目錄 vi
圖目錄 vii
第一章　緒論 1
1.1　研究背景 1
1.2　奈米銀的特性及應用 2
1.3　研究動機與目的 2
1.4　研究方法與步驟 3
1.5　論文架構 3
第二章　放電加工機及電紡絲 4
2.1　放電加工機之介紹 4
2.1.1　放電加工機之原理 5
2.1.2　放電加工機的系統架構 6
2.2　電紡絲的基本原理及架構 8
第三章　奈米銀的殺菌機制及奈米銀流體之穩定性 9
3.1　奈米銀的應用及殺菌機制 9
3.2　奈米流體穩定性介紹 10
3.2.1　布朗運動 10
3.2.3　DLVO理論 12
3.2.2　界達電位(Zeta-Potential) 13
3.3　分析儀器介紹 16
3.3.1　紫外光/可見光分光光譜儀(UV-Visible Spectroscopy) 16
3.3.2　雷射光散射儀(ZetasizerNano System) 17
3.3.3　掃瞄式電子顯微鏡(Scanning Electron Microscope) 18
3.3.4　X光能譜分析儀(Energy Dispersive X-ray Analysis) 19
第四章　奈米銀的製備及抗菌實驗分析 20
4.1　奈米銀的製備與分析 20
4.2　實驗結果 25
4.2.1　奈米銀的殺菌效果實驗 25
4.2.2　電導碘化銀抑菌實驗 46
4.2.3　奈米銀應用於聚乙烯醇電訪實驗 52
4.3　結果與討論 56
第五章　結論與未來研究方向 57
5.1　結論 57
5.2　本論文之貢獻 58
5.3　未來發展和研究方向 58
參考文獻 59
附錄A美國藥物食品檢驗局文件 63
附錄B 觀念生物學I 第2章能量 65
附錄C淺析原核生物的兩個問題 66

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