A new fluorogenic and colorimetric chemosensor based on rhodamine hydrazide for copper(II) ions and its application to bioimaging

REN Liexiang; WANG Panfeng; LIU Bin; YANG Binsheng

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A new fluorogenic and colorimetric chemosensor based on rhodamine hydrazide for copper(II) ions and its application to bioimaging

REN Liexiang 1,WANG Panfeng 2,LIU Bin 2,YANG Binsheng 2 *

1.Luliang university, Department of chemistry and chemical engineering，Lishi city, 033000

2.Institute of Molecular Science, Shanxi university, Taiyuan, 030006

*Correspondence author

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Funding: none

Opened online:10 May 2017

Accepted by: none

Citation: REN Liexiang,WANG Panfeng,LIU Bin.A new fluorogenic and colorimetric chemosensor based on rhodamine hydrazide for copper(II) ions and its application to bioimaging[OL]. [10 May 2017] http://en.paper.edu.cn/en_releasepaper/content/4729507

A new rhodamine hydrazide derivative L containing a long chain schiff base with salicylic acid was synthesized and characterized. Addition of Cu2+ induced a significant solution color change (colorless to pink) and an enhancement in fluorescence of the probe, even in the presence of other commonly coexistent cations in CH3CN/HEPES buffer solvent (1:1, v/v, pH 7.0). Cu2+-promoted ring-opening and hydrolysis of rhodamine L in aqueous acetonitrile media led to the fluorescence turn-on changes with high selectivity and high sensitivity (detection limit ≤ 22.9 nM) and a rapid response time (≤ 1 min). Importantly, the probe was successfully used for fluorescence imaging in colon cancer SW480 cells

Keywords:Rhodamine derivative; Chemosensor; Cu2+ ion; Cell imaging

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