Study on the photochromism, photochromic fluorescence switch, fluorescent and colorimetric sensing for Cu2+ of naphthopyran-diaminomaleonitrile dyad and recognition Cu2+ in living cellsHeyang Zhang, Guang Wang, Tianyuan Zhong et al.|Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy|2020Cited by 27