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Ultrafast Hydration Structures under Nanoconfinement

NSF Nanoscale Science and Engineering Center for Directed Assembly of Nanostructures Rensselaer Polytechnic Institute, DMR 0642573. Ultrafast Hydration Structures under Nanoconfinement R. H. Coridan, N. W. Schmidt, G. H. Lai, R. Godawat, P. Abbamonte, G. C. L. Wong, (2011).

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Ultrafast Hydration Structures under Nanoconfinement

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  1. NSF Nanoscale Science and Engineering Center for Directed Assembly of Nanostructures Rensselaer Polytechnic Institute, DMR 0642573 Ultrafast Hydration Structures under Nanoconfinement R. H. Coridan, N. W. Schmidt, G. H. Lai, R. Godawat, P. Abbamonte, G. C. L. Wong, (2011) Richard Siegel, Rensselaer Polytechnic Institute, DMR 0642573 Water confined between two dipolar walls down to 0.9nm remains liquid-like. Fundamental understanding of self assembly in water requires knowledge of water structure and dynamics near solutes at the nanoscale, specifically in the hydration shells. We use a new hybrid experimental-computational method, Greens Function Imaging of Dynamics (GFID), to reconstruct hydration behavior from a library of S(q,ω) data measured at 3rd generation synchrotron x-ray sources. As a result, the space- and time-dependent behavior of water at femtosecond timescales and Angstrom lengthscales can be simultaneously known. We recently applied this to nanoconfined water, and found that water remains ‘bulk-like’ down to 3 molecular layers thickness.

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