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

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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 languageEnglish
JournalNano Letters
Volume10
Issue number3
Pages (from-to)826-832
ISSN1530-6984
DOIs
Publication statusPublished - 2010
CitationsWeb of Science® Times Cited: No match on DOI

ID: 4337980