Mercury assisted fluorescent supramolecular assembly of hexaphenylbenzene derivative for femtogram detection of picric acid

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• 作者：Subhamay Pramanik ; V ; ana Bhalla ; Manoj Kumar
• 关键词：Hexaphenylbenzene ; AIEE ; Hg2+ chemosensor ; Self assembled nanofibres ; Femtogram level detection of PA
• 刊名：Analytica Chimica Acta
• 出版年：2013
• 出版时间：2 September, 2013
• 年：2013
• 卷：793
• 期：Complete
• 页码：99-106
• 全文大小：2832 K

文摘

Aggregates of hexaphenylbenzene derivatives 3, having pyrene groups form network of fluorescent nanofibres in presence of mercury ions. Further, fluorescent nanofibres of 3-Hg²⁺ supramolecular ensemble exhibit sensitive and pronounced response towards the picric acid. In addition, the solution coated paper strips of 3-Hg²⁺ supramolecular ensemble can detect picric acid in the range of 2.29 fg/cm², thus, providing a simple, portable and low cost method for detection of picric acid in solution and in contact mode.