Cover Picture: Molecular Switches and Multiple Logic Gates Based on 4-(2-Pyridylazo)resorcinol (Chin. J. Chem. 6/2013)

Authors

  • Zhanhui Tao,

    1. Jilin Province Design and Research Institute for Petrochemical Engineering, Changchun, Jilin 130021, China
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  • Yinan Qin,

    1. School of Chemistry and Enviromental Engineering, Changchun University of Science and Technology, Changchun, 130022 Jilin, China
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  • Yaqing Liu,

    1. State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022 Jilin, China
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  • Lei Xu,

    Corresponding author
    1. School of Chemistry and Enviromental Engineering, Changchun University of Science and Technology, Changchun, 130022 Jilin, China
    • School of Chemistry and Enviromental Engineering, Changchun University of Science and Technology, Changchun, 130022 Jilin, China, Fax: (0086) 431 85689711
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  • Erkang Wang

    Corresponding author
    1. State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022 Jilin, China
    • State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun, 130022 Jilin, China
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Abstract

original image

The cover picture shows A simple-structured 4-(2-pyridylazo)resorcinol (PAR) system whichpresents interesting properties with dual fluorescent outputs. Modulated by solution pH two kinds of reversible switch behaviors, "ON-OFF" and "OFF-ON", were realized with the PAR system. Stimulated by different combination of external stimulus, such as metal ions, UV irradiation and solution pH, the PAR system could perform multiple logic functions including three inputs AND, two inputs INHIBIT and combinatorial "NOR/AND" in parallel. The operation of the designed system is very simple and detected with a high sensitive fluorescent signal.

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