Geometry affects drift and diffusion across entropic barriers

Tuesday, June 29, 2010 - 03:07 in Physics & Chemistry

Understanding particle diffusion in the presence of constrictions is essential in fields as diverse as drug delivery, cellular biology, nanotechnology, materials engineering, and spread of pollutants in the soil. When a driving force is applied, displacement of particles occurs as well as diffusion. A new paper quantifies the effects of periodic constrictions on drift and diffusion in systems experiencing a driving force.

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