Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 220, Issue -, Pages 1361-1367Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2015.07.057
Keywords
Near infrared probe; Sulfide sensor; Tricarbocyanine dyes; Copper displacement
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A near-infrared fluorescent probe 1R806-DPAP was developed based on tricarbocyanine dyes. 1R806-DPAP functioned as an on-off sensor for Cu2+. The resulted Cu2+-IR806-DPAP complex selectively responded to S2- over other anions, functioning as an off-on sensor for S2- through a displacement mechanism. The detection limit of Cu2+-IR806-DPAP for S2- was 1.79 mu M. The applications of 1R806-DPAP and Cu2+-1R806-DPAP in living cells were also tested. (C) 2015 Elsevier By. All rights reserved.
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