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Zeta potentials of polydimethylsiloxane surfaces modified by polybrene of different concentrations
Author(s) -
Song Yongxin,
Li Jun,
Li Dongqing
Publication year - 2016
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.201500465
Subject(s) - zeta potential , electrokinetic phenomena , polydimethylsiloxane , microchannel , phosphate buffered saline , analytical chemistry (journal) , smoluchowski coagulation equation , chemistry , chromatography , buffer (optical fiber) , electrophoresis , materials science , nanotechnology , physics , classical mechanics , nanoparticle , computer science , telecommunications
Zeta potential is an important parameter for characterizing the electrokinetic properties of a solid–liquid interface. In this paper, zeta potentials of polydimethylsiloxane surfaces modified by polybrene (PB) solutions of different concentrations in Phosphate buffer solution and pure water were reported. The zeta potentials were measured by an induction current method. The measurements were validated both by a calibration curve based on the data reported in the published papers and by comparing the zeta potential determined by using the Smoluchowski equation and the measured velocity of the electrokinetic motion of particles in a microchannel.