83 citations · 339 across the 11 of their papers we have counts for
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X-ray fluorescence spectroscopy from ions at charged vapor/water interfaces
Wei Bu, David Vaknin
X-ray fluorescence spectra from monovalent ions (Cs+) that accumulate from dilute solutions to form an ion-rich layer near a charged Langmuir monolayer are presented. For the salt…
Thermally excited capillary waves at vapor/liquid interfaces of water-alcohol mixtures
David Vaknin, Wei Bu, Jaeho Sung +2
The density profiles of liquid/vapor interfaces of water-alcohol (methanol, ethanol and propanol) mixtures were studied by surface sensitive synchrotron X-ray scattering techniques…
Preferential affinity of calcium ions to charged phosphatidic-acid surface from a mixed calcium/barium solution: X-ray reflectivity and fluorescence studies
Wei Bu, Kevin Flores, Jacob Pleasants +1
X-ray reflectivity and fluorescence near total reflection experiments were performed to examine the affinities of divalent ions ( and ) from aqu…
Extracting the Pair Distribution Function of Liquids and Liquid-Vapor Surfaces by Grazing Incidence X-ray Diffraction Mode
David Vaknin, Wei Bu, Alex Travesset
We show that the structure factor of water can be obtained from X-ray synchrotron experiments at grazing angle of incidence (in reflection mode) by using a liquid surface di…
Charge inversion at minute electrolyte concentrations
J. Pittler, W. Bu, D. Vaknin +3
Anionic DMPA monolayers spread on LaCl solutions reveal strong cation adsorption and a sharp transition to surface overcharging at unexpectedly low bulk salt concentrations. We…
How accurate is Poisson-Boltzmann theory for monovalent ions near highly charged interfaces?
Wei Bu, David Vaknin, Alex Travesset
Surface sensitive synchrotron x-ray scattering studies were performed to obtain the distribution of monovalent ions next to a highly charged interface. A lipid phosphate (dihexadec…