Short communication: A simple and accurate method of measuring the zeta‐potential of microfluidic channels | Zendy

FernándezMateo Raúl | Zendy; GarcíaSánchez Pablo | Zendy; Calero Víctor | Zendy; Ramos Antonio | Zendy; Morgan Hywel | Zendy

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

Author(s) -

FernándezMateo Raúl,

GarcíaSánchez Pablo,

Calero Víctor,

Ramos Antonio,

Morgan Hywel

Publication year - 2022

Publication title -

electrophoresis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.666

H-Index - 158

eISSN - 1522-2683

pISSN - 0173-0835

DOI - 10.1002/elps.202100267

Subject(s) - zeta potential , electrolyte , conductivity , microfluidics , simple (philosophy) , pulmonary surfactant , materials science , analytical chemistry (journal) , channel (broadcasting) , chromatography , biological system , chemistry , nanotechnology , computer science , electrode , telecommunications , philosophy , biochemistry , epistemology , nanoparticle , biology

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.

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