منابع مشابه
Taylor dispersion of nanoparticles
The ability to detect and accurately characterize particles is required by many fields of nanotechnology, including materials science, nanotoxicology, and nanomedicine. Among the most relevant physicochemical properties of nanoparticles, size and the related surface-to-volume ratio are fundamental ones. Taylor dispersion combines three independent phenomena to determine particle size: optical e...
متن کاملUnderstanding Taylor Dispersion Analysis
PROTEIN STABILITY Taylor Dispersion Analysis (TDA) is a microcapillary flow-based technique whereby a nanoliter-scale sample pulse is injected into the laminar flow of run buffer, which then spreads out axially due to the combined actions of convection and radial diffusion. Detection of the equilibrium concentration profile (or Taylorgram) of the dispersed sample pulse allows the molecular diff...
متن کاملAnomalous dispersion of Couette-Taylor spirals
Competition of spirals in Couette – Taylor system between counter rotating cylinders leads, for small supercriticality to the formation of localized source. Measuring the group velocity as function of the amplitude, we have determined that waves forming such source have anomalous dispersion, in the sense that phase and linear group velocity of each have opposite signs. Our Couette Taylor system...
متن کاملTaylor-Aris dispersion in temperature gradient focusing.
Microfluidic temperature gradient focusing (TGF) uses an axial temperature gradient to induce a gradient in electrophoretic flux within a microchannel. When balanced with an opposing fluid flow, charged analytes simultaneously focus and separate according to their electrophoretic mobilities. We present a theoretical and experimental study of dispersion in TGF. We model the system using generali...
متن کاملTaylor dispersion with adsorption and desorption.
We use a stochastic approach to show how Taylor dispersion is affected by kinetic processes of adsorption and desorption onto surfaces. A general theory is developed, from which we derive explicitly the dispersion coefficients of canonical examples such as Poiseuille flows in planar and cylindrical geometries, in both constant and sinusoidal velocity fields. These results open the way for the m...
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ژورنال
عنوان ژورنال: Journal of Nanoparticle Research
سال: 2017
ISSN: 1388-0764,1572-896X
DOI: 10.1007/s11051-017-3987-3