Trapping of 27 bp - 8 kbp DNA and immobilization of thiol-modified DNA using dielectrophoresis

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dc.creatorTuukkanen, Sampo
dc.creatorKuzyk, Anton
dc.creatorToppari, J. Jussi
dc.creatorHakkinen, Hannu
dc.creatorHytonen, Vesa P.
dc.creatorNiskanen, Einari
dc.creatorRinkio, Marcus
dc.creatorTorma, Paivi
dc.date2006-09-18
dc.date2007-06-25
dc.date.accessioned2026-07-07T08:11:57Z
dc.date.available2026-07-07T08:11:57Z
dc.descriptionDielectrophoretic trapping of six different DNA fragments, sizes varying from the 27 to 8416 bp, has been studied using confocal microscopy. The effect of the DNA length and the size of the constriction between nanoscale fingertip electrodes on the trapping efficiency have been investigated. Using finite element method simulations in conjunction with the analysis of the experimental data, the polarizabilities of the different size DNA fragments have been calculated for different frequencies. Also the immobilization of trapped hexanethiol- and DTPA-modified 140 nm long DNA to the end of gold nanoelectrodes was experimentally quantified and the observations were supported by density functional theory calculations.
dc.description17 pages (1 column version), 8 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0609414
dc.identifierhttp://arxiv.org/abs/cond-mat/0609414
dc.identifierNanotechnology 18 (2007) 295204
dc.identifierdoi:10.1088/0957-4484/18/29/295204
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/132292
dc.subjectOther Condensed Matter
dc.subjectSoft Condensed Matter
dc.subjectBiological Physics
dc.subjectBiomolecules
dc.titleTrapping of 27 bp - 8 kbp DNA and immobilization of thiol-modified DNA using dielectrophoresis
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