Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7145617 | Sensors and Actuators B: Chemical | 2015 | 32 Pages |
Abstract
A novel colorimetric hydrazine based Schiff base chemoreceptor (E)-2-((2-(perfluorophenyl)hydrazono)methyl)phenol (PMP), for detection of fluoride (Fâ) is reported in this work. The receptor can selectively detect Fâ by turning from colorless to yellow. The recognition event is further confirmed by solution state spectrophotometric measurements like UV-Vis, Fluorescence and 1H NMR titrimetric studies. The fluorescence 'turn on' phenomenon of PMP with gradual addition of Fâ can be well explained by inhibition of CN isomerization process. 1H NMR titration experiments of PMP with Fâ further support the hydrogen bonding interaction between host PMP and guest Fâ. Interestingly, PMP has potential toward detection of intracellular Fâ in cells of Candida albicans (diploid fungus) and pollen grains of Techoma stans. The recognition phenomenon is reversible and we have successfully developed two input logic network where INHIBIT gate can be considered as an AND gate with one input inverted by a NOT function. Furthermore, this logic gate represents a potential 'Write-Read-Erase-Read' memory function possessing multi writing ability.
Related Topics
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Authors
Additi Roy Chowdhury, Pritam Ghosh, Biswajit Gopal Roy, Subhra Kanti Mukhopadhyay, Naresh Chandra Murmu, Priyabrata Banerjee,