新型螢光金奈米團簇合成與特徵分析

Synthesis and Characteristics of the New Fluorescent Gold Nanoclusters

嚴國峻(Kuo-Chun Yen)

指導教授 ： 林政鞍 ； 張恒雄

中原大學/工學院/生物醫學工程研究所/碩士(2012年)

https://doi.org/10.6840/cycu201201070

摘要

奈米技術近年發展出新型螢光標定結構，利用金合成螢光金奈米團簇。團簇具有特殊物化行為，因為其組成為數十到百個原子組成，其大小符合費米波長，尤其可藉由調整團簇表面之配體改變發射波長。螢光金奈米團簇具有良好的生物相容性、優異的抗光漂白性與超小尺寸，極具應用性。本研究目的在於開發出兩種以不同蝕刻作用製備新型水相螢光金奈米團簇: ㄧ種為利用聚乙烯亞胺（Polyethylenimine ，PEI）模板鑲嵌蝕刻之高分子保護藍色螢光金奈米團簇；另一種為利用二水合雙（對-磺贗苯基）苯基膦化二鉀鹽（Bis(p-sulfonatophenyl) phenylphosphine dihydrate dipotassium salt，BSPP）之單分子保護綠色螢光金團簇。兩種新型螢光金奈米團簇合成策略皆為無需外加還原劑、一步合成、產物在水相環境相當穩定與優良的光學特性，最後討論目前面臨的挑戰與潛在的感測器應用。

關鍵字

蝕刻作用 ； 一步合成 ； 螢光金奈米團簇

並列摘要

Recent advances in nanotechnology have produced a new fluorescent calibration structure, use of gold synthesis of fluorescent gold clusters. These nanoclusters with special physical and chemical behavior, because its composition of a few to a hundred atoms, their sizes are comparable to the Fermi wavelength. In particular, the emission wavelength of gold nanoclusters can be tuned by changing the ligands of the gold nanoclusters. Fluorescent gold nanoclusters have good biocompatibility, excellent photostability and ultrasmall size, making them to have great application. The purpose of this study is develop two different etching effect preparation of new aqueous phase fluorescent gold nanoclusters: using the template-based synthesis（Polyethylenimine）with blue fluorescent；and monolayer-protected nanoclusters synthesis （Bis(p-sulfonatophenyl) phenylphosphine dihydrate dipotassium salt） with green fluorescent. Summarize synthesis strategies of the new fluorescent gold nanoclusters are no external reducing agent, one-pot synthesis, the product is stable in aqueous environment and excellent optical properties, and finally discuss current challenges for potential sensor applications.

並列關鍵字

One-pot synthesis ； Etching effect ； Fluorescent gold nanoclusters

參考文獻

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