Optothermal Molecule Trap

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dc.creatorDuhr, Stefan
dc.creatorBraun, Dieter
dc.date2006-06-14
dc.date.accessioned2026-07-07T07:18:44Z
dc.date.available2026-07-07T07:18:44Z
dc.descriptionThermophoresis moves molecules along temperature gradients, typically from hot to cold. We superpose fluid flow with thermophoretic molecule flow under well defined microfluidic conditions, imaged by fluorescence microscopy. DNA is trapped and accumulated 16-fold in regions where both flows move in opposite directions. Strong 800-fold accumulation is expected, however with slow trapping kinetics. The experiment is equally described by a three-dimensional and one-dimensional analytical model. As an application, we show how a radially converging temperature field confines short DNA into a 10 um small spot.
dc.description9 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/physics/0606121
dc.identifierhttp://arxiv.org/abs/physics/0606121
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/114408
dc.subjectBiological Physics
dc.subjectFluid Dynamics
dc.titleOptothermal Molecule Trap
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