title: Dynamics of protein hydration water.
abstract: We present the frequency- and temperature-dependent dielectric properties of lysozyme solutions in a broad concentration regime, measured at subzero temperatures, and compare the results with measurements above the freezing point of water and on hydrated lysozyme powder. Our experiments allow examining the dynamics of unfreezable hydration water in a broad temperature range. The obtained results prove the bimodality of the hydration shell dynamics. In addition, we find indications of a fragile-to-strong transition of hydration water.
authors.affiliation: Experimental Physics V, Center for Electronic Correlations and Magnetism, University of Augsburg, Universitätsstr. 2, 86135 Augsburg, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Wolf
authors.affiliation: Experimental Physics V, Center for Electronic Correlations and Magnetism, University of Augsburg, Universitätsstr. 2, 86135 Augsburg, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Emmert
authors.affiliation: Experimental Physics V, Center for Electronic Correlations and Magnetism, University of Augsburg, Universitätsstr. 2, 86135 Augsburg, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Gulich
authors.affiliation: Experimental Physics V, Center for Electronic Correlations and Magnetism, University of Augsburg, Universitätsstr. 2, 86135 Augsburg, Germany.
authors.forename: P
authors.initials: P
authors.lastname: Lunkenheimer
authors.affiliation: Experimental Physics V, Center for Electronic Correlations and Magnetism, University of Augsburg, Universitätsstr. 2, 86135 Augsburg, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Loidl
mesh_terms: D000818:Animals; D002645:Chickens; D004527:Egg Proteins / Q000737:chemistry; D057446:Hydrodynamics; D009113:Muramidase / Q000737:chemistry*; D012996:Solutions; D013696:Temperature; D014867:Water / Q000737:chemistry*
chemical_list: D004527:Egg Proteins; D012996:Solutions; D014867:Water; D009113:Muramidase