期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 17, 期 31, 页码 20288-20295出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cp02525g
关键词
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资金
- Department of Science and Technology, Govt. of INDIA [SB/FT/CS-003/2012, GAP-183112]
Two newly synthesized Schiff base molecules are herein reported as anion sensors. -NO2 substituted receptor (P1) is comparatively more acidic and can sense F-, OAc- and H2PO4-, whereas -CN substituted receptor (P2) is less acidic and is selective for F- only. Reversible UV-Vis response for both receptors with F- can mimic multiple logic gate functions, and several complex electronic circuits based on XNOR, XOR, OR, AND, NOT and NOR logic operations with 'Write-Read-Erase-Read' options have been executed. Interesting 'turn on and off' fluorescence responses were noticed for the receptors with F-. Intracellular F- detection as a diagnosis of non-skeletal fluorosis was successful using a fluorescence microscope with Candida albicans (prokaryotic cell, a diploid fungus) and pollen grains of Tecoma stans (eukaryotic cell) incubated in 10(-6) M fluoride-contaminated hand-pump water collected from Bankura, West Bengal, India. Furthermore, a solution test kit was fabricated for easy and selective detection of F- in an aqueous solvent.
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