Powder and Bulk Engineering
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Publication Date: 02/2005
Pages: 5
PDF Format
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Sizing nanoparticles with dynamic light scattering

Nanosized particles are finding growing application in pharmaceuticals, biotechnology, inks and pigments, advanced ceramics, and a host of other industries. Yet accurate size analysis of particles this small can be a challenge. This article describes two modes of dynamic light-scattering analysis that can successfully measure nanoparticles.

Measured in billionths of a meter (typically from 1 to 1,000 nanometers or 0.001 to 1 micron), nanoparticles have revolutionized dry bulk solids processors’ ability to control material characteristics and performance. For instance, in inks and pigments, nanoparticles improve ink color density, coverage, and efficiency. In pharmaceuticals, nanoparticles improve drug efficacy and drug delivery. In steel production, nanoparticles added to cast steel create a stronger steel with a finer grain.

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