Fluorescence quenching of pyrene derivatives by iodide compounds in erythrocyte membranes: an approach of the probe location

Deumié, Michel; Baraka, Mohamed El; Quiñones, Edwin

doi:10.1016/1010-6030(94)03974-y

Cited by 14 publications

(10 citation statements)

References 27 publications

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“…It is generally known that the fluorescence of certain heterocyclic indicators such as those based on quinine (Verity andBigger 1996, Mayrhofer andBetts 1998), 6methoxyquinoline (Urbano et al 1984, Krapf et al 1988, Geddes et al 1999a, b, 2001a, b, Jiwan and Soumillion 1997), anthracene (Mac et al 1991, Zhang et al 1997, naphthalenes Mishra 1993, Behera et al 1995a, b), coumarins (Moriya 1984(Moriya , 1986(Moriya , 1988, fluorescein (Naim et al 1986), pyrene (Castano et al 1983, Deumie et al 1995, rhodamines (Geddes andDouglas 2000, Geddes 2000a) and various other polynuclear/heterocyclic aromatics (Davis 1973, Najbar and Mac 1991, Momin and Narayanaswamy 1992, Sarpal and Dogra 1994, Carrigan et al 1996 are quenched by halides and some pseudohalides. The resulting decrease in fluorescence emission intensity or lifetime can be measured and related directly to the halide concentration via different quenching models that the author will describe.…”

Section: The Theory Of Dynamic Fluorescence Quenchingmentioning

confidence: 99%

Optical halide sensing using fluorescence quenching: theory, simulations and applications - a review

Geddes¹

2001

Meas. Sci. Technol.

253

247

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In the last century the production and application of halides assumed an ever greater importance. In the fields of medicine, dentistry, plastics, pesticides, food, photography etc many new halogen containing compounds have come into everyday use. In an analogous manner many techniques for the detection and determination of halogen compounds and ions have been developed with scientific journals reporting ever more sensitive methods. The 19th century saw the discovery of what is now thought of as a classical method for halide determination, namely the quenching of fluorescence. However, little analytically was done until over 100 years after its discovery, when the first halide sensors based on the quenching of fluorescence started to emerge. Due to the typical complexity of fluorescence quenching kinetics of optical halide sensors and their lack of selectivity, they have found little if any place commercially, despite their sensitivity, where other techniques such as ion-selective electrodes, x-ray fluorescence spectroscopy and colorimetry have dominated the analytical market. In this review article the author summarizes the relevant theory and work to date for halide sensing using fluorescence quenching methods and outlines the future potential that fluorescence quenching based optical sensors have to offer in halide determination.

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Section: The Theory Of Dynamic Fluorescence Quenchingmentioning

confidence: 99%

Optical halide sensing using fluorescence quenching: theory, simulations and applications - a review

Geddes¹

2001

Meas. Sci. Technol.

253

247

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“…The large iodide ions, which have a low charge/ volume value, penetrate to some extent into the lipid phase. However, the deeper the tetrapyrrole ring is inserted in the lipid bilayer, the less accessible it will be to the quencher and it will yield a lower Stern-Volmer quenching constant (Ehrenberg and Gross, 1988;Langner and Hui, 1991;Barenholz et al, 1991;Moro et al, 1993;Deumie et al, 1995). Fig.…”

Section: Comparative Depth Profiles Of the Protoporphyrin Derivativesmentioning

confidence: 99%

The Depth of Porphyrin in a Membrane and the Membrane’s Physical Properties Affect the Photosensitizing Efficiency

Lavi

Weitman

Holmes

et al. 2002

Biophysical Journal

139

125

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Photosensitized biological processes, as applied in photodynamic therapy, are based on light-triggered generation of molecular singlet oxygen by a membrane-residing sensitizer. Most of the sensitizers currently used are hydrophobic or amphiphilic porphyrins and their analogs. The possible activity of the short-lived singlet oxygen is limited to the time it is diffusing in the membrane, before it emerges into the aqueous environment. In this paper we demonstrate the enhancement of the photosensitization process that is obtained by newly synthesized protoporphyrin derivatives, which insert their tetrapyrrole chromophore deeper into the lipid bilayer of liposomes. The insertion was measured by fluorescence quenching by iodide and the photosensitization efficiency was measured with 9,10-dimethylanthracene, a fluorescent chemical target for singlet oxygen. We also show that when the bilayer undergoes a melting phase transition, or when it is fluidized by benzyl alcohol, the sensitization efficiency decreases because of the enhanced diffusion of singlet oxygen. The addition of cholesterol or of dimyristoyl phosphatydilcholine to the bilayer moves the porphyrin deeper into the bilayer; however, the ensuing effect on the sensitization efficiency is different in these two cases. These results could possibly define an additional criterion for the choice and design of hydrophobic, membrane-bound photosensitizers.

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“…The aggregation behavior of surfactants in aqueous solution can be determined by the micelle aggregation number (N), which is derived from the fluorescence spectroscopy results with pyrene as the probe [21]. If the concentration of pyrene in solution is lower than 1 × 10 −2 mmol/L, then the fluorescence spectrum has five peaks at wavelengths of 373, 373, 384, 390, and 397 nm [22].…”

Section: Resultsmentioning

confidence: 99%

Micellar Aggregation Behavior of Alkylaryl Sulfonate Surfactants for Enhanced Oil Recovery

et al. 2019

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Alkylaryl sulfonate is a typical family of surfactants used for chemically enhanced oil recovery (EOR). While it has been widely used in surfactant–polymer flooding at Karamay Oilfield (40 °C, salinity 14,000 mg/L), its aggregation behavior in aqueous solutions and the contribution of aggregation to EOR have not been investigated so far. In this study, raw naphthenic arylsulfonate (NAS) and its purified derivatives, alkylaryl monosulfonate (AMS) and alkylaryl disulfonate (ADS), were examined under simulated temperature and salinity environment of Karamay reservoirs for their micellar aggregation behavior through measuring surface tension, micellar size, and micellar aggregation number. It was found that all three alkylaryl sulfonate surfactants could significantly lower the surface tension of their aqueous solutions. Also, it has been noted that an elevation both in temperature and salinity reduced the surface tension and critical micellar concentration. The results promote understanding of the performance of NAS and screening surfactants in EOR.

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Fluorescence quenching of pyrene derivatives by iodide compounds in erythrocyte membranes: an approach of the probe location

Cited by 14 publications

References 27 publications

Optical halide sensing using fluorescence quenching: theory, simulations and applications - a review

Optical halide sensing using fluorescence quenching: theory, simulations and applications - a review

The Depth of Porphyrin in a Membrane and the Membrane’s Physical Properties Affect the Photosensitizing Efficiency

Micellar Aggregation Behavior of Alkylaryl Sulfonate Surfactants for Enhanced Oil Recovery

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