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理學院
化學系
學位論文
學位論文
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/73899
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search.filters.author.Chih-Chung Tseng
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search.filters.author.曾志中
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search.filters.subject.Composite
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search.filters.subject.Drug Delivery System
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search.filters.subject.FePt
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search.filters.subject.Hydrogel
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search.filters.subject.水膠
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Author: search.filters.author.Chih-Chung Tseng
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製備超順磁性水膠複合微粒及其在藥物傳輸系統上之應用
(
2007
)
曾志中
;
Chih-Chung Tseng
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近幾年來,奈米粒子-高分子複合材料由於分析和合成技術的進步,受到廣泛的研究及討論。超順磁性的FePt奈米粒子經由Cysteamine表面修飾轉為水相後,藉由 TEM、XRD和SQUID儀器鑑定其結構及性質沒有改變,界面電位顯示水相FePt奈米粒子帶正電,利用此表面性質以化學方法和溫感型水膠結合形成奈米粒子-高分子複合微粒,經TEM、XRD證實此複合微粒具有水膠及FePt奈米粒子,亦觀察到此複合微粒擁有孔洞可用來攜帶藥物。以DLS在溫度變化下觀察到複合微粒反覆以收縮或膨潤應答,表示此複合微粒仍保有水膠之性質。在藥物傳輸系統上之應用,我們設計了完整的流程探求FePt奈米粒子-水膠複合微粒乘載和釋放藥物的能力,並且利用溫度的差異控制藥物釋放的程度和效率。因此我們認為這種奈米粒子-高分子複合微粒在磁熱治療上極具潛力。
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