Pressure dependence of MSD in deeply cooled confined water: a new way of testing the Liquid-Liquid Transition hypothesis
Aim of this proposal is to verify the Liquid-Liquid Transition hypothesis in deeply cooled confined water. The LLT hypothesis has been recently proposed in the literature and has given rise to passionate debate; it has been suggested to be present in the hydration water of proteins and to trigger the so called protein dynamical transition. The novelty of our approach is in the use of Elastic Incoherent Neutron Scattering (EINS)to measure the pressure dependence of mean square displacements (MSD)at constant temperature across the putative LLT. Moreover, we investigate water confined in the pores of a hydrophylic disordered silica matrix obtained from the alcoxide precursor TMOS via the sol-gel method. In this new matrix the confinement conditions experienced by water in biological systems are closely mimicked and the hydration level can be easily varied.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
CUPANE Antonio; FOMINA Margarita; MISURACA Loreto; OLLIVIER Jacques; PETERS Judith; PIAZZA Irina and SCHIRO Giorgio. (2015). Pressure dependence of MSD in deeply cooled confined water: a new way of testing the Liquid-Liquid Transition hypothesis. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-13-572
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.