Results 71 to 80 of about 2,178,025 (238)
Biosensors, 2020 Polydiacetylene vesicles of various compositions were assembled using a two-part mixture of 10,12-pentacosadiynoic acid (PCDA) and ethylenedioxy-bis-ethylamine (EDEA)-labeled PCDA in order to control surface charge and stability within a desired pH range.
Anthony David Nelson +6 more
doaj +1 more source
Coupled Ripplon-Plasmon Modes in a Multielectron Bubble
, 2003 In multielectron bubbles, the electrons form an effectively two-dimensional layer at the inner surface of the bubble in helium. The modes of oscillation of the bubble surface (the ripplons) are influenced by the charge redistribution of the electrons ...
Albrecht +15 more
core +1 more source
Adsorption of polyelectrolytes from semi-dilute solutions on an oppositely charged surface
, 2008 We propose a detailed description of the structure of the layer formed by polyelectrolyte chains adsorbed onto an oppositely charged surface in the semi-dilute regime.
Alexander +32 more
core +3 more sources
AppliedMathThe transition zone (TZ) of hydrocarbon reservoirs is an integral part of the hydrocarbon pool which contains a substantial fraction of the deposit, particularly in carbonate petroleum systems.
Mumuni Amadu, Adango Miadonye
doaj +1 more source
Discrete versus continuum modeling of a charged dielectric interface: A first grade test
, 2018 Two main treatments within classical simulations for modeling a charged surface are using explicit, discrete charges and continuous, uniform charges. The computational cost can be substantially reduced if, instead of discrete surface charges, one uses an
Wang, Yanwei, Yuan, Jiaxing
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Screening of a charged particle by multivalent counterions in salty water: Giant charge inversion
, 2000 Screening of a macroion such as a charged solid particle, a charged membrane, double helix DNA or actin by multivalent counterions is considered. Small colloidal particles, charged micelles, short or long polyelectrolytes can play the role of multivalent
Grosberg, A. Yu. +2 more
core +1 more source
Surfaces Designed for Charge Reversal
Journal of the American Chemical Society, 2003 We have created surfaces which switch from cationic at pH < 3 to anionic at pH > 5, by attaching aminodicarboxylic acid units to silica and gold substrates. Charge reversal was demonstrated by monitoring the adsorption of cationic dyes (methylene blue and a tetracationic porphyrin) and an anionic sulfonated porphyrin, at a range of pH using UV-vis ...
Matthews, JR +4 more
openaire +2 more sources
, 2002 We measure the electron conductivity of the surface states and the subsurface space charge layer originating from the Si(111)-4x1-In reconstruction as a function of temperature.
Cho +11 more
core +1 more source
Surface pinning of fluctuating charge order: an "extraordinary" surface phase transition
, 2005 We study the mean-field theory of charge-density wave (CDW) order in a layered system, including the effect of the long-range Coulomb interaction and of screening by uncondensed electrons.
Eduardo Fradkin +7 more
core +1 more source
Measuring Electric Charge and Molecular Coverage on Electrode Surface from Transient Induced Molecular Electronic Signal (TIMES). [PDF]
, 2019 Charge density and molecular coverage on the surface of electrode play major roles in the science and technology of surface chemistry and biochemical sensing. However, there has been no easy and direct method to characterize these quantities.
Bi, Bo +4 more
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