Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (8): 2403.doi: 10.7503/cjcu20210089

• Analytical Chemistry • Previous Articles     Next Articles

ON-OFF-ON Double Colorimetric and Fluorescent Probes Based on Phenanthro[9,10-d]imidazole Derivatives and Their Living Cells Imaging

LI Anran1, ZHAO Bing1,2(), KAN Wei1,2, SONG Tianshu1, KONG Xiangdong1, BU Fanqiang1, SUN Li1,2, YIN Guangming1, WANG Liyan1,2   

  1. 1.College of Chemistry and Chemical Engineering
    2.Heilongjiang Provincial Key Laboratory of Surface Active Agent and Auxiliary,Qiqihar University,Qiqihar 161006,China
  • Received:2021-02-08 Online:2021-08-10 Published:2021-08-05
  • Contact: ZHAO Bing E-mail:zhao_submit@aliyun.com

Abstract:

The symmetric fluorescent probe PIP-ph-PIP based on phenanthro[9,10-d]imidazole was designed and synthesized, and its structure was characterized and confirmed. As the increasing amount of water in the solution of PIP-ph-PIP, the fluorescence intensity of PIP-ph-PIP first increased and then quenched with the gradual aggregation. The results of the fluorescence spectra indicated that the probe PIP-ph-PIP could selectively and successively recognize Ag+ and SCN-, Cu2+ and PO34 -, respectively, with an ON-OFF-ON mode in the aqueous system. Moreover, the continuous effect can be observed by the colorimetric naked eye. The probe PIP-ph-PIP offered a relatively low detection limits of 6.1 nmol/L for Ag+ ions. The probe PIP-ph-PIP was successfully applied to detect Ag+ and Cu2+ in living human cancer cells(HeLa cells) and quantitively analyze of Ag+ and Cu2+ in actual water samples.

Key words: Water phase, Phenanthro[9, 10-d]imidazole, Colorimetry, Fluorescent probe, Cell imaging

CLC Number: 

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