Chem. J. Chinese Universities ›› 2018, Vol. 39 ›› Issue (12): 2665.doi: 10.7503/cjcu20180319

• Analytical Chemistry • Previous Articles     Next Articles

Water-soluble Supramolecular Fluorescent Probe for Sensing Carbendazim and Its Application in Living Cell Imaging

YANG Mei1,2, LIU Qing2, TANG Qing4, WANG Chenghui2, YANG Meixiang2, SUN Tao3, HUANG Ying1,2,*(), TAO Zhu2   

  1. 1. The Engineering and Research Center for Southwest Bio-Pharmaceutical Resources of National Education Ministry of China
    2. Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province
    3. Key Laboratory of Guizhou High Performance Computational Chemistry
    4. College of Tobacco Science, Guizhou University, Guiyang 550025, China
  • Received:2018-04-25 Online:2018-11-09 Published:2018-11-09
  • Contact: HUANG Ying E-mail:yinghung128@163.com
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.21562015), the Excellent Youth Scientific Talents Foundation of Guizhou Province, China(No.[2017]5636), the Talents Support Project of Guizhou Province of Education, China(No.QJH-KY-2016-059), the Natural Science Fund of the Science and Technology Department of Guizhou Province, China(No.QJH-JZ-2014-2005), the Mutual Fund Project of the Science and Technology Department of Guizhou Province, China(No.QJH-LH-2014-7658) and the Cooperation Projects of Chunhui Plan of the Ministry of Education of China(No.Z2015002).

Abstract:

A host-guest complex between cucurbit[8]uril(Q[8]) and acridine orange(AO) was used as a fluorescent probe for detecting the carbendazim(CBZ). 2AO@Q[8] fluorescent probe was designed and used to detect carbendazim with high sensitivity and selectivity with a detection limit of ca. 10-8 mol/L. A good linear relationship of emission intensity at ca. 529 nm for CBZ at concentrations of 0.4—5.0 μmol/L was observed. The proposed sensing mechanism was investigated via 1H NMR spectroscopy combined with density functional theory calculations at the B3LYP/6-31G(d) level. The cell imaging study showed that the 2AO@Q[8] complex could be used to detect carbendazim in prostate cancer(PC3) cells, which may help to sense carbendazim in biological system.

Key words: Cucurbit[8]uril, Acridine orange, Fluorescent probe, Carbendazim, Cell imaging

CLC Number: 

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