Network structure consisting of chain-like arrays of gold nanoparticles and silica layer prepared using a nonionic reverse-micelle template
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A nonionic reverse-micelle based approach is described for fabrication of a network structure consisting of chain-like arrays of gold nanoparticles, followed by coating process with a uniform silica layer using a sol-gel method. The hexadecyl-poly (ethylene oxide-15) ether (designated C16E15) is used as a template for this study. The effects of a water-to-surfactant molar ratio (w) as well as the concentration of tetraethyl orthosilicate ([TEOS]oil) are investigated on the resulting organized structures.
Keywordsgold nanoparticle hexadecyl-poly (ethylene oxide-15) ether microemulsion one dimensional array silica coating nonionic reverse micelle soft template sol-gel method
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The authors thank the Research Laboratory of High Voltage Electron Microscopy, Kyushu University, for the use of TEM (JEM-2000FX, Nihon Densi). This research has been supported by the 21st Century COE program of “Functional Innovation of Molecular Informatics” from the ministry of Education, Culture, Sports, Science and Technology, Japan.
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