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Web Date: August 27, 2012

Nanopore Measures Nanoparticles’ Surface Charges

Analysis: With small sample volumes and high precision, method could help manufacturers check quality of particle suspensions
Department: Science & Technology
News Channels: Analytical SCENE, Nano SCENE, Materials SCENE
Keywords: nanopore, zeta potential, nanoparticle, colloid, dynamic light scattering

When manufacturers produce suspensions of nanoparticles for paints, inks, and some pharmaceuticals, they must check the charge on the particles’ surfaces. If the charges are too low, the particles will clump together, destroying the suspension and making the product ineffective. Researchers have now developed a fast method that measures nanoparticles’ charge by passing them through a nanopore (Anal. Chem., DOI: . . .

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Chemical & Engineering News
ISSN 0009-2347
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