Short communication: A simple and accurate method of measuring the zeta-potential of microfluidic channels.

Autor: Fernández-Mateo R; School of Electronics and Computer Science, University of Southampton, Southampton, United Kingdom., García-Sánchez P; Depto. Electrónica y Electromagnetismo, Facultad de Física, Universidad de Sevilla, Sevilla, Spain., Calero V; Depto. Electrónica y Electromagnetismo, Facultad de Física, Universidad de Sevilla, Sevilla, Spain., Ramos A; Depto. Electrónica y Electromagnetismo, Facultad de Física, Universidad de Sevilla, Sevilla, Spain., Morgan H; School of Electronics and Computer Science, University of Southampton, Southampton, United Kingdom.
Jazyk: angličtina
Zdroj: Electrophoresis [Electrophoresis] 2022 Jun; Vol. 43 (12), pp. 1259-1262. Date of Electronic Publication: 2021 Nov 26.
DOI: 10.1002/elps.202100267
Abstrakt: We describe an improved method for determining the electroosmotic mobility and zeta potential of surfaces based on a current-monitoring method. This technique eliminates the requirement for measurements of channel dimensions and sample conductivities, leading to a simple high precision measurement. The zeta potential of PDMS is measured for native surfaces and surfaces treated with a nonionic surfactant in low-conductivity electrolytes.
(© 2021 The Authors. Electrophoresis published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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