Dyes and Pigments

Design and synthesis of a squaraine based near-infrared fluorescent probe for the ratiometric detection of Zn 2+ ions

Y Huang, Q Lin, J Wu, N Fu

文献索引：Huang, Yangwei; Lin, Qian; Wu, Jiaming; Fu, Nanyan Dyes and Pigments, 2013 , vol. 99, # 3 p. 699 - 704

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被引用次数: 20

摘要

Abstract A squaraine based ratiometric near-infrared fluorescent probe with bipyridyl binding arms for Zn 2+(SQ-1) has been designed and synthesized. SQ-1 exhibits a selective fluorogenic response to Zn 2+ in acetone by a 22 nm red-shift and a remarkable enhancement of the fluorescence intensity. Further study shows that the calculated detection limit for Zn 2+ is 6.1× 10− 8 M (3σ/k) and the identification for Zn 2+ will not be impacted by ...