ArticleProceedings of the National Academy of Sciences of the United States of America2009
Water dynamics at neutral and ionic interfaces.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 148 citations in OpenAlex.
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- Assessing the Location of Ionic and Molecular Solutes in a Molecularly Heterogeneous and Nonionic Deep Eutectic Solvent.The journal of physical chemistry. B · 2020Article
- Probing relaxation dynamics of a cationic lipid based non-viral carrier: a time-resolved fluorescence study.RSC advances · 2019Article
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- Therapeutics for Inflammatory-Related Diseases Based on Plasmon-Activated Water: A Review.International journal of molecular sciences · 2018Review
- Role of Charge and Solvation in the Structure and Dynamics of Alanine-Rich Peptide AKA2 in AOT Reverse Micelles.The journal of physical chemistry. B · 2015Article
- Exploring the role of hydration and confinement in the aggregation of amyloidogenic peptides Aβ(16-22) and Sup35(7-13) in AOT reverse micelles.The Journal of chemical physics · 2014Article
- Optimized reverse micelle surfactant system for high-resolution NMR spectroscopy of encapsulated proteins and nucleic acids dissolved in low viscosity fluids.Journal of the American Chemical Society · 2014Article
- Site-specific hydration dynamics of globular proteins and the role of constrained water in solvent exchange with amphiphilic cosolvents.The journal of physical chemistry. B · 2012Article
- Dynamics of water interacting with interfaces, molecules, and ions.Accounts of chemical research · 2012Article
- From water and ions to crowded biomacromolecules: in vivo structuring of a prokaryotic cell.Microbiology and molecular biology reviews : MMBR · 2011Review
- Simulations of the confinement of ubiquitin in self-assembled reverse micelles.The Journal of chemical physics · 2011Article
- The self-organizing fractal theory as a universal discovery method: the phenomenon of life.Theoretical biology & medical modelling · 2011Article
- Protein dynamics in cytochrome P450 molecular recognition and substrate specificity using 2D IR vibrational echo spectroscopy.Journal of the American Chemical Society · 2011Article
- Site-resolved measurement of water-protein interactions by solution NMR.Nature structural & molecular biology · 2011Article
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Authors and funding
3 authors at 1 institution in 1 country.
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Abstract
The orientational dynamics of water at a neutral surfactant reverse micelle interface are measured with ultrafast infrared spectroscopy of the hydroxyl stretch, and the results are compared to orientational relaxation of water interacting with an ionic interface. The comparison provides insights into the influence of a neutral vs. ionic interface on hydrogen bond dynamics. Measurements are made and analyzed for large nonionic surfactant Igepal CO-520reverse micelles (water nanopool with a 9-nm diameter). The results are compared with those from a previous study of reverse micelles of the same size formed with the ionic surfactant Aerosol-OT (AOT). The results demonstrate that the orientational relaxation times for interfacial water molecules in the two types of reverse micelles are very similar (13 ps for Igepal and 18 ps for AOT) and are significantly slower than that of bulk water (2.6 ps). The comparison of water orientational relaxation at neutral and ionic interfaces shows that the presence of an interface plays the dominant role in determining the hydrogen bond dynamics, whereas the chemical nature of the interface plays a secondary role.
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