title: Investigation of Fluorescence Resonance Energy Transfer between Fluorescein and Rhodamine 6G.
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.
authors.affiliation: Thin Film and Nanoscience Laboratory, Department of Physics, Tripura University, Suryamaninagar 799022, Tripura, India.
authors.forename: Jaba
authors.initials: J
authors.lastname: Saha
authors.affiliation: Thin Film and Nanoscience Laboratory, Department of Physics, Tripura University, Suryamaninagar 799022, Tripura, India.
authors.forename: Arpan
authors.initials: A
authors.lastname: Datta Roy
authors.affiliation: Thin Film and Nanoscience Laboratory, Department of Physics, Tripura University, Suryamaninagar 799022, Tripura, India.
authors.forename: Dibyendu
authors.initials: D
authors.lastname: Dey
authors.affiliation: Thin Film and Nanoscience Laboratory, Department of Physics, Tripura University, Suryamaninagar 799022, Tripura, India.
authors.forename: Santanu
authors.initials: S
authors.lastname: Chakraborty
authors.affiliation: Thin Film and Nanoscience Laboratory, Department of Physics, Tripura University, Suryamaninagar 799022, Tripura, India.
authors.forename: D
authors.initials: D
authors.lastname: Bhattacharjee
authors.affiliation: Department of Physics, Jadavpur University, Jadavpur, Kolkata 700032, West Bengal, India.
authors.forename: P K
authors.initials: PK
authors.lastname: Paul
authors.affiliation: Thin Film and Nanoscience Laboratory, Department of Physics, Tripura University, Suryamaninagar 799022, Tripura, India. Electronic address: sa_h153@hotmail.com.
authors.forename: Syed Arshad
authors.initials: SA
authors.lastname: Hussain
mesh_terms: D019793:Fluorescein / Q000737:chemistry*; D031541:Fluorescence Resonance Energy Transfer; D005456:Fluorescent Dyes / Q000737:chemistry*; D012235:Rhodamines / Q000737:chemistry*; D017640:Silicates / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: D005456:Fluorescent Dyes; D012235:Rhodamines; D017640:Silicates; C026188:rhodamine 6G; D014867:Water; C524813:laponite; D019793:Fluorescein
keywords: Clay; Dyes; FRET; pH sensor