Aggregation of Rhodamine 3B Adsorbed in Wyoming Montmorillonite Aqueous Suspensions

Arbeloa, F. López; Chaudhuri, Rupali; Arbeloa, Teresa; Arbeloa, Í. López

doi:10.1006/jcis.2001.8074

Cited by 40 publications

(29 citation statements)

References 33 publications

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“…This can be interpreted in terms of light scattering from the clay mineral particles, or of other causes related to the interactions of the dyes at the clay mineral surface. Similar trends have frequently been observed for dye/clay mineral dispersions [29]. The lowering of the luminescence has mostly been assigned to the dye aggregation, changes in the optical properties in a more polar environment at the interfaces, self-quenching, or quenching by the clay mineral substrate itself [17,30].…”

Section: Absorption and Fluorescence Spectroscopymentioning

confidence: 78%

Energy transfer between rhodamine 3B and oxazine 4 in synthetic-saponite dispersions and films

Czı́merová

Iyi

Bujdák

2007

Journal of Colloid and Interface Science

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Section: Absorption and Fluorescence Spectroscopymentioning

confidence: 78%

Energy transfer between rhodamine 3B and oxazine 4 in synthetic-saponite dispersions and films

Czı́merová

Iyi

Bujdák

2007

Journal of Colloid and Interface Science

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“…Intercalation of organic dyes into layered silicates is one method of producing ordered organic-inorganic hybrid materials with interesting photofunctions [1][2][3][4][5][6][7][8][9][10][11]. Especially, the smectite group is used as a very convenient host structure for the intercalation of organic dyes for two reasons.…”

Section: Introductionmentioning

confidence: 99%

Effect of surface and interlayer structure on the fluorescence of rhodamine B–montmorillonite: modeling and experiment

Čapková

Malý

Pospı́šil

et al. 2004

Journal of Colloid and Interface Science

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“…It is interesting to mention in this context that absorption and intercalation of rhodamine 3B in various clays were studied by Lo´pez Arbeloa and co-workers [32][33]35] and found red shifts of the monomer absorption maximum by 7, 12, and 12.5 nm on montmorillonite, 10, 17, and 23 nm on Hectorite, and 10 nm on Laponite. The smaller shifts in montmorillonite and Hectorite were attributed to monomer absorption on the external clay surface and the intermediate shifts were attributed to monomer adsorption in the interlamellar regions, and the larger shifts were attributed to dimers or higher order aggregates.…”

Section: Spectroscopic Investigationmentioning

confidence: 92%

“…The adsorption of the dye in clay systems has generally been attributed to ion exchange [32][33][34][35][36], although Yariv et. al.…”

Section: Spectroscopic Investigationmentioning

confidence: 99%

Fluorescence Resonance Energy Transfer between organic dyes adsorbed onto nano-clay and Langmuir–Blodgett (LB) films

Hussain

Chakraborty

Bhattacharjee

et al. 2010

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Abstract:In this communication we investigate two dyes N N ′ , -dioctadecyl thiacyanine perchlorate (NK) and octadecyl rhodamine B chloride (RhB) in Langmuir and Langmuir-Blodgett (LB) films with or with out a synthetic clay laponite. Observed changes in isotherms of RhB in absence and presence of nano-clay platelets indicate the incorporation of clay platelets onto RhB-clay hybrid films. AFM image confirms the incorporation of clay in hybrid films. FRET was observed in clay dispersion and LB films with and without clay. Efficiency of energy transfer was maximum in LB films with clay.Keywords: Fluorescence Resonance Energy Transfer (FRET), Langmuir-Blodgett, pressure-area isotherm, clay, dyes, Atomic Force Microscope (AFM). IntroductionFluorescence Resonance Energy Transfer (FRET) is a physical phenomenon first described over 50 years ago [1,2]. Due to its sensitivity to distance, FRET has been used to investigate molecular level interaction. Fluorescence emission rate of energy transfer has wide applications in biomedical, protein folding, RNA/DNA identification and their energy transfer process [3][4][5][6][7][8][9]. Another important application of energy transfer is in dye lasers. Dye lasers have some limitations as the dye solution used as an active medium absorbs energy from the excitation source in a very limited spectral range and so the emission band also has these limitations. If a dye laser has to be used as an ideal source its spectral range needs to be extended. In order to extend the spectral range of operation, mixtures of different dye solutions/dye molecules embedded in solid matrices are being used. The work on energy transfer between different dye molecules in such mixtures in various solvents and solid matrices is, therefore, of great importance. The use of such energy transfer in dye lasers is also helpful in minimizing the photo-quenching effects and thereby, increasing the laser efficiency.FRET is the relaxation of an excited donor molecule by transfer of its excited energy to an acceptor molecule

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Aggregation of Rhodamine 3B Adsorbed in Wyoming Montmorillonite Aqueous Suspensions

Cited by 40 publications

References 33 publications

Energy transfer between rhodamine 3B and oxazine 4 in synthetic-saponite dispersions and films

Energy transfer between rhodamine 3B and oxazine 4 in synthetic-saponite dispersions and films

Effect of surface and interlayer structure on the fluorescence of rhodamine B–montmorillonite: modeling and experiment

Fluorescence Resonance Energy Transfer between organic dyes adsorbed onto nano-clay and Langmuir–Blodgett (LB) films

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