Light-Induced Local Heating for Thermophoretic Manipulation of DNA in Polymer Micro- and Nanochannels

Lasse Højlund Thamdrup; Niels Bent Larsen; Anders Kristensen

doi:10.1021/nl903190q

Light-Induced Local Heating for Thermophoretic Manipulation of DNA in Polymer Micro- and Nanochannels

Lasse Højlund Thamdrup, Niels Bent Larsen, Anders Kristensen

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

We present a method for making polymer chips with a narrow-band near-infrared absorber layer that enables light-induced local heating of liquids inside fluidic micro- and nanochannels fabricated by thermal imprint in polymethyl methacrylate. We have characterized the resulting liquid temperature profiles in microchannels using the temperature dependent fluorescence of the complex [Ru(bpy)3]2+. We demonstrate thermophoretic manipulation of individual YOYO-1 stained T4 DNA molecules inside micro- and nanochannels.

Original language	English
Journal	Nano Letters
Volume	10
Issue number	3
Pages (from-to)	826-832
ISSN	1530-6984
DOIs	https://doi.org/10.1021/nl903190q
Publication status	Published - 2010

Cite this

Thamdrup, L. H., Larsen, N. B., & Kristensen, A. (2010). Light-Induced Local Heating for Thermophoretic Manipulation of DNA in Polymer Micro- and Nanochannels. Nano Letters, 10(3), 826-832. https://doi.org/10.1021/nl903190q

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AU - Kristensen, Anders

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AB - We present a method for making polymer chips with a narrow-band near-infrared absorber layer that enables light-induced local heating of liquids inside fluidic micro- and nanochannels fabricated by thermal imprint in polymethyl methacrylate. We have characterized the resulting liquid temperature profiles in microchannels using the temperature dependent fluorescence of the complex [Ru(bpy)3]2+. We demonstrate thermophoretic manipulation of individual YOYO-1 stained T4 DNA molecules inside micro- and nanochannels.

U2 - 10.1021/nl903190q

DO - 10.1021/nl903190q

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Access to Document

10.1021/nl903190q

http://pubs.acs.org/doi/abs/10.1021/nl903190q