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Preparation and Characterization of Gelatin-Siloxane Nanoparticles as Gene Delivery System

Abstract

基因治疗的主要目的是研制安全有效的基因转染载体。在基因转染载体中,非病毒载体以其低毒性、低免疫原性、低致瘤性及易于制备等优点具有良好的应用前景。本文以新型有机-无机杂化材料——明胶-硅氧烷纳米颗粒作为基础,探讨了此种材料的合成机制,将其应用于基因治疗,并以活性多肽修饰表面增强功能性。取得的主要成果有:1.以明胶、GPSM和氨水作为反应物,或以明胶、GPSM和APTMS作为反应物,通过溶胶-凝胶法,制得两种阳离子明胶-硅氧烷颗粒。探讨了两种纳米颗粒的合成机制,探索了一种全新材料的合成和表征方法。2.利用明胶-硅氧烷纳米颗粒与质粒DNA的相互作用,系统地研究了明胶-硅氧烷纳米颗作为基因载体的理化性...The main objective in gene therapy is the development of efficient, non-toxic gene carriers. Non-viral vectors provide opportunities for improved lower toxicity, non-pathogenic and more facile manufacturing. In this work, the new hybrid nanoparticles with organic-inorganic contents of gelatin and siloxane were successfully synthesized. We described the synthesis of gelatin-siloxane nanoparticles a...学位:工学硕士院系专业:材料学院生物材料系_生物医学工程学号:2402005130255

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