研究领域
Solvents, solvation, and solubility; Statistical thermodynamics of biomolecules, drugs, and food
Solvation is crucial in chemistry, biophysics and engineering:
Without reasonable solubility, many chemical processes do not work. Yet choosing appropriate solvents or solvent mixtures is often very difficult.
Using alternative solvents with less environmental impact has become imperative.
Biomolecular structure and function are affected by the solvent water.
We investigate the following questions:
Can we understand solvation / solubility from basic molecular interactions?
Why do some additives (cosolvents, hydrotropes, entrainers) dramatically increase solubility?
What is the molecular mechanism of solvation in pure and mixed solvents?
近期论文
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Subnanoscale hydrophobic modulation of salt bridges in aqueous media S Chen, Y Itoh, T Masuda, S Shimizu, J Zhao, J Ma, S Nakamura, K Okuro, H Noguchi, K Uosaki and T Aida, Science, 2015, 348 (6234), 555-559
Preferential Solvation: Dividing surface vs excess numbers. S Shimizu and N Matubayasi, J Phys Chem B, 2014, 118, 3922-3930.
Hydrotropy: Monomer–micelle equilibrium and minimum hydrotrope concentration. S Shimizu and N Matubayasi, J Phys Chem B, 2014, 118, 10515-10524.
The Mechanism of Hydrophobic Drug Solubilization by Small Molecule Hydrotropes. J J Booth, S Abbott and S Shimizu, J Phys Chem B, 2012, 116, 14915–14921.
Estimating hydration changes upon biomolecular reactions from osmotic stress, high pressure, and preferential hydration experiments. S Shimizu, Proc Natl Acad Sci USA, 2004, 101, 1195-1199.