期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 199, 期 -, 页码 465-471出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2017.11.013
关键词
Fluorenone; Biological entities; H-bonds; Stoichiometry; Zwitterionic form
类别
资金
- Council of Scientific and Industrial Research (CSIR), New Delhi [01(2818)/14/EMR-II]
To sense biologically important entities with different size and dimensions, a fluorenone based fluorescent receptor was designed and synthesized. Probe 1 displayed a distinct fluorescence enhancement emission at 565 nm for pyrophosphate and 530 nm for alanine in polar solvent. The fluorescence titration experiments confirm 1:1 stoichiometric ratio with high-binding constant and very low limit of detection (LoD) values. Receptor I showed a highly selective and sensitive recognition to HP2O73- and to alanine over other competitive anions and amino acids. In addition, the fluorescence lifetime measurement and reversible binding study results support the practical importance of 1. (C) 2017 Elsevier B.V. All rights reserved.
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