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Measuring the size and zeta potential of nanoparticles with a salt gradient

Martin K. Rasmussen, Jonas N. Pedersen, and Rodolphe Marie

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Abstract

We present a nanofluidic device that traps nanoparticles with a salt gradient. From optical microscopy images of the trapped particles, we find the size and surface charge of individual and ensembles of particles.

© 2020 The Author(s)

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