| Literature DB >> 25956326 |
Jaba Saha1, Arpan Datta Roy1, Dibyendu Dey1, Santanu Chakraborty1, D Bhattacharjee1, P K Paul2, Syed Arshad Hussain3.
Abstract
Fluorescence Resonance Energy Transfer between two organic dyes Fluorescein and Rhodamine 6G was investigated in aqueous solution in presence and absence of synthetic clay laponite. Spectroscopic studies suggest that both the dyes were present mainly as monomer in solution. Fluorescence Resonance Energy Transfer occurred from Fluorescein to Rhodamine 6G in solutions. Energy transfer efficiency increases in presence of laponite and the maximum efficiency was 72.00% in aqueous laponite dispersion. Energy transfer efficiency was found to be pH sensitive. It has been demonstrated that with proper calibration it is possible to use the present system under investigation to sense pH over a wide range from 1.5 to 8.0.Entities:
Keywords: Clay; Dyes; FRET; pH sensor
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Year: 2015 PMID: 25956326 DOI: 10.1016/j.saa.2015.04.027
Source DB: PubMed Journal: Spectrochim Acta A Mol Biomol Spectrosc ISSN: 1386-1425 Impact factor: 4.098