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Issue 12, 2010
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Experimental evidence of logarithmic relaxation in single-particle dynamics of hydrated protein molecules

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Abstract

We observe a logarithmic-like decay of the intermediate scattering function (ISF) of the hydrogen atoms in the protein molecule in the time interval from 10 ps to 1 ns. We analyze the ISF, FH(Q,t), in terms of an asymptotic expression proposed by mode coupling theory (MCT). The result clearly shows that this logarithmic stretching of the β-relaxation range is real, substantiating the prediction of the molecular dynamics (MD) simulation results that used the formula proposed by MCT for the analysis of ISF.

Graphical abstract: Experimental evidence of logarithmic relaxation in single-particle dynamics of hydrated protein molecules

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Publication details

The article was received on 08 Feb 2010, accepted on 27 Apr 2010 and first published on 24 May 2010


Article type: Communication
DOI: 10.1039/C002602F
Citation: Soft Matter, 2010,6, 2623-2627
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    Experimental evidence of logarithmic relaxation in single-particle dynamics of hydrated protein molecules

    X. Chu, M. Lagi, E. Mamontov, E. Fratini, P. Baglioni and S. Chen, Soft Matter, 2010, 6, 2623
    DOI: 10.1039/C002602F

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