Study of the molecular dynamics of cotton fibres by the luminescent label method

I. Kh Yusupov; V. R. Fogel'; A. I. Kotel'nikov; R. Marupov; G. I. Likhtenshtein

Study of the molecular dynamics of cotton fibres by the luminescent label method

I. Kh Yusupov, V. R. Fogel', A. I. Kotel'nikov, R. Marupov, G. I. Likhtenshtein

Research output: Contribution to journal › Article › peer-review

Abstract

The temperature dependences of the position of the maxima of the fluorescence and phosphorescence spectra and also the rate of attenuation of the phosphorescence of erythrosin attached to cotton fibres have been measured. Fluorescing and phosphorescing probes reveal the presence of a whole number of molecular dynamic effects in the cotton fibre. At 100 K the molecular motions of the electric dipoles of cotton fibre surrounding the probe with relaxation times of the order of milliseconds were recorded reaching nanoseconds at room temperature. In the system studied appreciable microheterogeneity for the free activation energies of the molecular motions, described by a Gaussian function with a halfwidth ~15 kJ/mole, was observed.

Original language	English
Pages (from-to)	544-549
Number of pages	6
Journal	Biophysics (Russian Federation)
Volume	33
Issue number	3
State	Published - 1 Dec 1988
Externally published	Yes

ASJC Scopus subject areas

Biophysics

Cite this

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title = "Study of the molecular dynamics of cotton fibres by the luminescent label method",

abstract = "The temperature dependences of the position of the maxima of the fluorescence and phosphorescence spectra and also the rate of attenuation of the phosphorescence of erythrosin attached to cotton fibres have been measured. Fluorescing and phosphorescing probes reveal the presence of a whole number of molecular dynamic effects in the cotton fibre. At 100 K the molecular motions of the electric dipoles of cotton fibre surrounding the probe with relaxation times of the order of milliseconds were recorded reaching nanoseconds at room temperature. In the system studied appreciable microheterogeneity for the free activation energies of the molecular motions, described by a Gaussian function with a halfwidth ~15 kJ/mole, was observed.",

author = "Yusupov, {I. Kh} and Fogel', {V. R.} and Kotel'nikov, {A. I.} and R. Marupov and Likhtenshtein, {G. I.}",

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T1 - Study of the molecular dynamics of cotton fibres by the luminescent label method

AU - Yusupov, I. Kh

AU - Fogel', V. R.

AU - Kotel'nikov, A. I.

AU - Marupov, R.

AU - Likhtenshtein, G. I.

PY - 1988/12/1

Y1 - 1988/12/1

N2 - The temperature dependences of the position of the maxima of the fluorescence and phosphorescence spectra and also the rate of attenuation of the phosphorescence of erythrosin attached to cotton fibres have been measured. Fluorescing and phosphorescing probes reveal the presence of a whole number of molecular dynamic effects in the cotton fibre. At 100 K the molecular motions of the electric dipoles of cotton fibre surrounding the probe with relaxation times of the order of milliseconds were recorded reaching nanoseconds at room temperature. In the system studied appreciable microheterogeneity for the free activation energies of the molecular motions, described by a Gaussian function with a halfwidth ~15 kJ/mole, was observed.

AB - The temperature dependences of the position of the maxima of the fluorescence and phosphorescence spectra and also the rate of attenuation of the phosphorescence of erythrosin attached to cotton fibres have been measured. Fluorescing and phosphorescing probes reveal the presence of a whole number of molecular dynamic effects in the cotton fibre. At 100 K the molecular motions of the electric dipoles of cotton fibre surrounding the probe with relaxation times of the order of milliseconds were recorded reaching nanoseconds at room temperature. In the system studied appreciable microheterogeneity for the free activation energies of the molecular motions, described by a Gaussian function with a halfwidth ~15 kJ/mole, was observed.

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M3 - Article

AN - SCOPUS:45549119747

SN - 0006-3509

VL - 33

SP - 544

EP - 549

JO - Biophysics (Russian Federation)

JF - Biophysics (Russian Federation)

IS - 3

ER -

Study of the molecular dynamics of cotton fibres by the luminescent label method

Abstract

ASJC Scopus subject areas

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