The Proceedings of the Thermal Engineering Conference
Online ISSN : 2424-290X
2016
Session ID : A225
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Measurement of Nanoparticle Zeta Potential in Microdevice Using Built-in Device Called EvaChip
Takahiro MiyajimaShohei WatanabeYohei Sato
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Abstract

The purpose of this study is to establish a measurement method of gold nanoparticles zeta potential using builtin device called Evachip. Evanescent wave generated using an Evachip are capable of illuminating the vicinity of an interface easily. The conventional measurement methods of nanoparticle zeta-potentials had complicated optical systems and cost a lot. Therefore a simpler measurement method was desired. Gold nanoparticles zeta potential was estimated from electrophoresis velocities using the formulas of Helmholtz-Smoluchowski. This measurement method using evanescent enabled nanoparticle zeta-potential measurement in the vicinity of the liquid-solid interface.

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© 2016 The Japan Society of Mechanical Engineers
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