Spontaneous formation of dye-functionalized gold nanoparticles using reverse micellar systems
Spontaneous formation of dye-functionalized gold nanoparticles using reverse micellar systems
复制标题
使用反胶束系统自发形成染料功能化金纳米颗粒
DOI：
10.1016/j.jcis.2011.01.045
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发表时间：
2011
影响因子：
9.9
通讯作者：
Masaki Takahashi
中科院分区：
文献类型：
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作者：
豊川秀訓;呉樹奎;広野等子;川瀬守弘;古川行人;大端通;池田博一;佐藤悟朗;渡辺伸;高橋忠幸;Tetsuya Sengoku;大神風子・加藤陽香・久保埜公二・堀一繁・谷 敬太;道端潤・日夏雅子・大須賀秀次・坂本英文;大須賀秀次;Masaki Takahashi
在本出版物中描述了使用基于染料的反胶束系统自发形成染料官能化金纳米颗粒（GNP）的详细探索性和机理研究。从光谱和微观研究的积累结果表明，限制在自组装反胶团的纳米外壳的水分子发挥关键作用的金酸根离子的氧化还原过程中产生GNP，这被假定为具有近似恒定的尺寸分布。发现所得染料官能化的GNP通过改变介质极性提供其吸收和荧光发射可调谐性，并且表现出优异的成膜性质以得到光学均匀的聚苯乙烯薄膜。这些关键的发现，除了广泛的适用性的自组装过程与各种染料类似物，导致了一个结论，这里提出的协议作为一个通用的合成方法，为未来开发新的有机-无机杂化纳米材料提供了潜在的便利。
Detailed exploratory and mechanistic investigations on spontaneous formation of dye-functionalized gold nanoparticles (GNPs) using dye-based reverse micellar systems are described in this publication. The accumulated results from spectroscopic and microscopic investigations demonstrated that water molecules confined within nanoscopic enclosure of the self-assembled reverse micelles played critical role in the redox processes of aurate ions to produce GNPs, which are assumed to have approximately constant size distributions. The resulting dye-functionalized GNPs were found to offer their absorption and fluorescence emission tunability by changing the medium polarity as well as to exhibit excellent film-forming properties to give optically homogeneous polystyrene thin films. These key findings in addition to broad applicability of the self-assembling process with a variety of dye analogues have led to a conclusion that the protocol presented here serves as a versatile synthetic method to provide a potential convenience for future development of new organic–inorganic hybrid nanomaterials.