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  • 學位論文

功能性磁性奈米顆粒在微通道上之應用探討

Study the application of functional magnetic nanoparticle in thin channels

指導教授 : 傅傳博
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摘要


本論文主要關於製備功能性奈米粒子(functional nanoparticles)並結合“分析磁泳技術”( analytical magnetapheresis ) 做生化分離上之應用研究。主要利用化學共沉澱方法( co-precipitating )製備磁性粒子,再對磁性粒子以二氧化矽修飾粒子表面。本研究成功製備 10 nm 之 Fe3O4 粒子。磁性粒子經修飾粒子表面後粒徑為17 nm。在本實驗中,我們將牛血清蛋白(Bovine serum albumin,BSA)固定在二氧化矽修飾的四氧化三鐵磁性載體上,將蛋白質與顆粒進行共價鍵鍵結;再將抗牛血清蛋白( anti-Bovine serum albumin,anti-BSA )固定在二氧化矽的載體上,結合“分析磁泳技 術”(analytical magnetapheresis)做簡易生化分離上之研究。藉由帶有 BSA的磁性顆粒,可以成功地與帶有 anti-BSA 之二氧化矽顆粒作用,探討抗原抗體在磁場作用下的專一性。且製備磁性顆粒並對其作表面改質後與免疫分析系統結合,其具有快速分離、高選擇性、操作簡單及低成本等優點。

關鍵字

分析磁泳 磁性顆粒

並列摘要


The goals of this study are to synthesize functional magnetic particles and to combine with analytical magnetapheresis for biochemical analysis. Magnetic particles ( Fe3O4 )were prepared by co-precipitating and surface modifications with SiO2. The sizes of magnetic nanoparticles were 10 nm. The sizes of SiO2 coated Fe3O4 were 17 nm. In this study, BSA was binding onto Fe3O4@SiO2 particles and anti-BSA was bindig onto SiO2, and applied to magnetic carriers for bioseparation in analytical agnetapheresis.We explored the specific interaction between antigen and antibody under the magnetic field. The advantages of this methed are rapid separation, high selectivity, simple operation,and low cost.

參考文獻


1. 化工資訊. 1998: p. 20-27.
2. http://elearning.stut.edu.tw/m_facture/Nanotech/Web/ch8.htm3.
3. Fuh, C.B., Lin, L.Y., Lai, M.H., Analytical magnetapheresis of magnetically
susceptible particles Journal of Chromatography A, 2000. 874(1): p. 131-142.
4. 王世敏, 許祖勛, 傅晶, 奈米材料原理與製備. 五南圖書出版社, 2004: p. 2-3.

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