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A simple colorimetric and ON-OFF fluorescent chemosensor for biologically important anions based on amide moieties.
- Source :
-
Journal of photochemistry and photobiology. B, Biology [J Photochem Photobiol B] 2009 Apr 02; Vol. 95 (1), pp. 1-5. Date of Electronic Publication: 2008 Dec 24. - Publication Year :
- 2009
-
Abstract
- A simple colorimetric and fluorescent anion chemosensor based on amide moieties, 6-nitro-1,4-dihydroquinoxaline-2,3-dione has been designed, synthesized and characterized by (1)H NMR, ESI-MS and elemental analyses. The strong basic anions such as F(-) and AcO(-) resulted in significant decrease in fluorescent emission intensity of the compound 1, accompanied synchronously with a dramatic color change from colorless to deep yellow in organic medium. (1)H NMR titration experiments shed light on the nature of the interactions between 1 and the anions.
- Subjects :
- Acetates chemistry
Amides chemical synthesis
Amides radiation effects
Colorimetry
Fluorescent Dyes chemical synthesis
Fluorescent Dyes radiation effects
Fluorides chemistry
Quinoxalines chemical synthesis
Quinoxalines radiation effects
Spectrophotometry, Ultraviolet
Amides chemistry
Anions chemistry
Biosensing Techniques methods
Fluorescent Dyes chemistry
Quinoxalines chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1873-2682
- Volume :
- 95
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Journal of photochemistry and photobiology. B, Biology
- Publication Type :
- Academic Journal
- Accession number :
- 19157892
- Full Text :
- https://doi.org/10.1016/j.jphotobiol.2008.12.007