Hydration Shell Spectroscopy




Water is an interesting substance of great biological importance. Hydrophobic hydration has been identified as a key mediator - and often instigator - of various aqueous biological activities, including protein folding. Understanding hydrophobic hydration is the cornerstone to understanding these activities. To this end, our research focuses on studying aqueous solutions of hydrophobic molecules using Raman-SMCR. Raman-SMCR is a technique that combines Raman spectroscopy with Self-Modeling Curve Resolution (SMCR) and similiar deconvolution techniques. This enables us to decompose experimental spectra into solute correlated (SC) and solvent components. The SC components contain features from the solute itself, such as the C-H and C-C vibrational bands, as well as the water molecules perturbed by the solute. This allows us to see unique features not previously seen within the liquid phase of water, such as dangling (or "free") OH bonds at the molecular level. Our current projects focus on hydrophobic association, protein solvation, and ion affinity for molecular oil/water interfaces.



Return to Research page