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http://dx.doi.org/10.3795/KSME-B.2014.38.10.845

Analysis of Particle Motion in Quadrupole Dielectrophoretic Trap with Emphasis on Its Dynamics Properties  

Chandrasekaran, Nichith (Graduate School of Mechanical and Aerospace Engineering, Gyeongsang Nat'l Univ.)
Yi, Eunhui (Graduate School of Specialized Aerospace Engineering, Gyeongsang Nat'l Univ.)
Park, Jae Hyun (Dept. of Aerospace and System Engineering, Research Center for Aircraft Parts Technology, Gyeongsang Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.10, 2014 , pp. 845-851 More about this Journal
Abstract
Dielectrophoresis (DEP) is defined as the motion of suspended particles in solvent resulting from polarization forces induced by an inhomogeneous electric field. DEP has been utilized for various biological applications such as trapping, sorting, separation of cells, viruses, nanoparticles. However, the analysis of DEP trapping has mostly employed the period-averaged ponderomotive forces while the dynamic features of DEP trapping have not been attracted because the target object is relatively large. Such approach is not appropriate for the nanoscale analysis in which the size of object is considerably small. In this study, we thoroughly investigate the dynamic response of trapping to various system parameters and its influence on the trapping stability. The effects of particle conductivity on its motion are also focused.
Keywords
Dielectrophoresis; Quadrupole Trap; Paul Trap; Mathieu Equation; Clausius-Mossotti Factor; Critical Frequency; Responding Frequency;
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Times Cited By KSCI : 3  (Citation Analysis)
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