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@ARTICLE{Doster:11792,
author = {Doster, W. and Busch, S. and Gaspar, A.M. and Appavou,
M.-S. and Wuttke, J. and Scheer, H.},
title = {{D}ynamical {T}ransition of {P}rotein-{H}ydration {W}ater},
journal = {Physical review letters},
volume = {104},
issn = {0031-9007},
address = {College Park, Md.},
publisher = {APS},
reportid = {PreJuSER-11792},
pages = {098101},
year = {2010},
note = {This work has been supported by Deutsche
Forschungsgemeinschaft through SFB 533. We thank the late
Henry Crespi for providing D-CPC.},
abstract = {Thin layers of water on biomolecular and other
nanostructured surfaces can be supercooled to temperatures
not accessible with bulk water. Chen et al. [Proc. Natl.
Acad. Sci. U.S.A. 103, 9012 (2006)] suggested that anomalies
near 220 K observed by quasielastic neutron scattering can
be explained by a hidden critical point of bulk water. Based
on more sensitive measurements of water on perdeuterated
phycocyanin, using the new neutron backscattering
spectrometer SPHERES, and an improved data analysis, we
present results that show no sign of such a
fragile-to-strong transition. The inflection of the elastic
intensity at 220 K has a dynamic origin that is compatible
with a calorimetric glass transition at 170 K. The
temperature dependence of the relaxation times is highly
sensitive to data evaluation; it can be brought into perfect
agreement with the results of other techniques, without any
anomaly.},
keywords = {J (WoSType)},
cin = {IFF-4 / IFF-5 / Jülich Centre for Neutron Science JCNS
(JCNS) ; JCNS},
ddc = {550},
cid = {I:(DE-Juel1)VDB784 / I:(DE-Juel1)VDB785 /
I:(DE-Juel1)JCNS-20121112},
pnm = {BioSoft: Makromolekulare Systeme und biologische
Informationsverarbeitung / Großgeräte für die Forschung
mit Photonen, Neutronen und Ionen (PNI)},
pid = {G:(DE-Juel1)FUEK505 / G:(DE-Juel1)FUEK415},
experiment = {EXP:(DE-MLZ)SPHERES-20140101},
shelfmark = {Physics, Multidisciplinary},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000275252500043},
doi = {10.1103/PhysRevLett.104.098101},
url = {https://juser.fz-juelich.de/record/11792},
}