Dyes and Pigments

Cu 2+ fluorescent sensor based on mesoporous silica nanosphere

D Lu, J Lei, Z Tian, L Wang, J Zhang

Index: Lu, Deli; Lei, Juying; Tian, Zhidan; Wang, Lingzhi; Zhang, Jinlong Dyes and Pigments, 2012 , vol. 94, # 2 p. 239 - 246

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Citation Number: 13

Abstract

Monodisperse mesoporous silica nanosphere (MSN) modified with anthracene derivative, 2- (3-(triethoxysilyl) propylamino)-N-(9-anthryl methyl) acetamide (SGAAn) has been fabricated as a fluorescent sensor (SGAAn-MSN) for the detection of metal ions, which shows an exclusive selectivity to Cu2+. Compared with SGAAn, SGAAn-MSN presents a higher sensitivity to Cu2+. The loading amount of SGAAn in MSN has a great influence on the ...