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首页> 外文会议>IUMRS International Conference in Asia;IUMRS-ICA 2010 >Monodispersed Protein Stabilized Silver Nanoprisms: Synthesis, Optical Properties and Surface-Enhanced Raman Scattering Application
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Monodispersed Protein Stabilized Silver Nanoprisms: Synthesis, Optical Properties and Surface-Enhanced Raman Scattering Application

机译：单分散蛋白稳定的银纳米棱镜：合成，光学性质和表面增强拉曼散射应用。

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摘要

Protein stabilized, water soluble silver nanoparticles are essential for biomedicine and biotechnology. The abundant protein such as gelatin and bovine serum albumin (BSA) has a remarkable ability of binding and transporting materials across cell membrane that makes it ideal for drug delivery and very useful for pharmaceutical industry. In this article, silver nanoprisms were synthesized by reacting an aqueous solution of silver nitrate with proteins such as gelatin and bovine serum albumin at different conditions, where proteins provided the dual function of Ag (I) reduction and Ag(0) prism-like structures formation. The solution exhibited an excellent colloidal stability by the visible observation. UV-vis spectra and transmission electron microscopy (TEM), revealed the formation of well-dispersed Ag nanoprisms with different sizes. Furthermore, the fluorescence intensity of proteins was drastically quenched in presence of Ag nanoprisms from the results of fluorescence spectra. The surface enhanced Raman scattering spectrum of anisotropic silver nanoprisms was also presented.
机译：蛋白质稳定的水溶性银纳米颗粒对于生物医学和生物技术至关重要。明胶和牛血清白蛋白（BSA）等丰富的蛋白质具有出色的结合力和跨细胞膜转运材料的能力，这使其非常适合药物输送，并且对制药行业非常有用。在本文中，通过使硝酸银的水溶液与蛋白质（例如明胶和牛血清白蛋白）在不同条件下反应来合成银纳米棱镜，其中蛋白质提供了Ag（I）还原和Ag（0）棱柱状结构的双重功能编队。通过可见观察，溶液显示出优异的胶体稳定性。紫外可见光谱和透射电子显微镜（TEM）揭示了大小不同的分散良好的Ag纳米棱镜的形成。此外，根据荧光光谱的结果，在存在银纳米棱镜的情况下，蛋白质的荧光强度被彻底淬灭。还提出了各向异性银纳米棱镜的表面增强拉曼散射光谱。

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