Glassy dynamics of water at interface with biomolecules: A Mode Coupling Theory test

We study the slow dynamics of hydration water upon cooling in two different biological aqueous solutions, one containing a molecule of lysozyme and another with trehalose molecules. In particular we test if the glassy behaviour of these solutions fulfils the predictions of the popular Mode Coupling...

Full description

Saved in:
Bibliographic Details
Published inScience China. Physics, mechanics & astronomy Vol. 62; no. 10; p. 107011
Main Authors Iorio, Antonio, Camisasca, Gaia, Gallo, Paola
Format Journal Article
LanguageEnglish
Published Beijing Science China Press 01.10.2019
Springer
Springer Nature B.V
Subjects
Analysis
Aqueous solutions
Astronomy
Biochemistry
Biomolecules
Biotechnology
Classical and Continuum Physics
Cooling
Coupled modes
Coupling
Fourier transforms
glassy dynamics
Hydration
Investigations
Lysozyme
Molecular Dynamics
Observations and Techniques
Physics
Physics and Astronomy
Proteins
Supercooling
Superposition (mathematics)
Temperature
Trehalose
Water
aqueous solutions
Molecular Dynamics
glassy dynamics
biomolecules
Online AccessGet full text

Cover

More Information
Summary:We study the slow dynamics of hydration water upon cooling in two different biological aqueous solutions, one containing a molecule of lysozyme and another with trehalose molecules. In particular we test if the glassy behaviour of these solutions fulfils the predictions of the popular Mode Coupling Theory of glassy dynamics. In particular we test the Time Temperature Superposition Principle and the matching of the exponents of the theory. Our results confirm that this theory is able to describe the dynamical behaviour of supercooled water also in non ideal cases as the ones under investigation in the region of mild supercooling.
ISSN:1674-7348
1869-1927
1869-1927
DOI:10.1007/s11433-019-9426-5