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The Dielectrophoretic Behavior of Submicron Latex Spheres: Influence of Surface Conductance |
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| Authors: | Hughes Morgan Flynn |
| Institution: | a Bioelectronics Research Centre, Department of Electronics and Electrical Engineering, University of Glasgow, Glasgow, G12 8QQ, United Kingdom;b European Institute of Health and Medical Sciences, University of Surrey, Guildford, GU2 5XH, United Kingdom |
| Abstract: | An analysis of the dielectrophoretic crossover frequency as a function of medium conductivity has been made for submicron spheres with different surface functionalities. It is shown that the AC electrokinetic behavior of the particles can be explained by modeling the surface conductivity of the particle as the sum of two surface conductance components: one due to charge motion behind the slip plane (the Stern layer) and the other due to charge motion in front of the slip plane. |
| Keywords: | submicron particles protein immobilization surface conductance double layer |
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