D
Drew F. Parsons
Researcher at Murdoch University
Publications - 115
Citations - 3328
Drew F. Parsons is an academic researcher from Murdoch University. The author has contributed to research in topics: Ion & van der Waals force. The author has an hindex of 32, co-authored 104 publications receiving 2839 citations. Previous affiliations of Drew F. Parsons include Australian National University & Federal University of Rio de Janeiro.
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Hofmeister effects: interplay of hydration, nonelectrostatic potentials, and ion size
TL;DR: It is shown how Hofmeister effects depend on an interplay between specific surface chemistry, surface charge density, pH, buffer, and counterion with polarisabilities and ion size, and how the most recent theories on surface hydration combined with hydrated nonelectrostatic potentials may predict experimental zeta potentials and hydration forces.
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Measurements and Theoretical Interpretation of Points of Zero Charge/Potential of BSA Protein
Andrea Salis,Mathias Boström,Mathias Boström,Luca Medda,Francesca Cugia,Brajesh Barse,Drew F. Parsons,Barry W. Ninham,Maura Monduzzi +8 more
TL;DR: The use of a modified Poisson-Boltzmann equation for a simple model system (a charge regulated spherical colloidal particle in NaCl salt solutions), that includes these ion specific interactions, allows the opposite trends observed for isoelectric point and isoionic point of BSA to be explained.
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Possible Origin of the Inverse and Direct Hofmeister Series for Lysozyme at Low and High Salt Concentrations
TL;DR: It is shown that both direct and reverse Hofmeister effects can be predicted quantitatively and a modification of Poisson-Boltzmann theory is used that accounts for the effects of ion polarizabilities and ion sizes obtained from ab initio calculations.
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Why Direct or Reversed Hofmeister Series? Interplay of Hydration,Non-electrostatic Potentials, and Ion Size
TL;DR: A modified Poisson-Boltzmann analysis of the double layer interaction between two silica surfaces and two alumina surfaces in chloride electrolyte suggests that surface-induced dehydration may be occurring at the alumina surface.
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Ab initio molar volumes and gaussian radii
Drew F. Parsons,Barry W. Ninham +1 more
TL;DR: It is shown that the ionic volumes used in electrostatic calculations of strongly hydrated cosmotropic ions ought best to include the first hydration shell, and radii obtained can be used for computation of nonelectrostatic ion-ion dispersion forces that underlie Hofmeister specific ion effects.