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Updated: Jun 16, 2026
Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties
Published on: January 8, 2016
Light-induced local heating for thermophoretic manipulation of DNA in polymer micro- and nanochannels
Lasse H Thamdrup1, Niels B Larsen, Anders Kristensen
1Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Lyngby, Denmark.
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.
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