About: Svedberg is a research topic. Over the lifetime, 85 publications have been published within this topic receiving 1119 citations. The topic is also known as: Sv & S.
TL;DR: In this paper, the authors demonstrate the use of centrifugation for efficient separation of colloidal gold nanoporods from a mixture of nanorods and nanospheres and elucidate the hydrodynamic behavior of nanoparticles of various shapes and illustrate that the shapedependent drag causes particles to have shape-dependent sedimentation behavior.
Abstract: We demonstrate the use of centrifugation for efficient separation of colloidal gold nanorods from a mixture of nanorods and nanospheres. We elucidate the hydrodynamic behavior of nanoparticles of various shapes and illustrate that the shape-dependent drag causes particles to have shape-dependent sedimentation behavior. During centrifugation, nanoparticles undergo Brownian motion under an external field and move with different sedimentation velocities dictated by their Svedberg coefficients. This effects a separation of particles of different shape and size. Our theoretical analysis and experiments demonstrate the viability of using centrifugation to shape-separate a mixture of colloidal particles.
TL;DR: In this article, a prolate ellipsoid of revolution with an axial ratio a / b ∼25 was shown to be a hydrodynamically equivalent body of the flexible worm-like chain that had been derived from static light scattering.
TL;DR: The reproducibility in sedimentation rate was lower for the insulin and the β-lactoglobulin than for the bovine plasma albumin and the egg albumin, and the significance of this variation was discussed.