Cristin-resultat-ID: 1271646
Sist endret: 24. september 2015, 19:59
Resultat
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2009

Teflon-carbon black as new material for the hydrophobic patterning of polymer labs-on-a-chip

Bidragsytere:
  • Michal Marek Mielnik

Bok

Om resultatet

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publiseringsår: 2009
Sider: 2026 - 2029
ISBN:
  • 9781424441907
Open Access

Importkilder

SINTEF AS-ID: S12326

Beskrivelse Beskrivelse

Tittel

Teflon-carbon black as new material for the hydrophobic patterning of polymer labs-on-a-chip

Sammendrag

We provide a new method for the selective surface patterning of microfluidic chips with hydrophobic fluoropolymers which is demonstrated by the fabrication of hydrophobic valves. It enables efficient optical quality control for the surface patterning thus permitting the lowcost production of highly reproducible hydrophobic valves. Specifically, a fluoropolymer-solvent-dye solution based on carbon black (CB) is presented which creates superhydrophobic surfaces (contact angle = 157.9°) onchips made from cyclic olefin copolymer (COC). It further provides good visibility for the quality control (QC) in polymer labs-on-a-chip and increases the burst pressure of hydrophobic valves. Finally, an application which aims for the amplification of mRNA on-chip and relies on the defined flow control by hydrophobic valves is presented. Here, the QC in combination with the Teflon-CB coating improves the average standard deviation of the burst pressures from 14.5% down to 6.1 % compared to solely Teflon-coated valves.

Bidragsytere

Michal Marek Mielnik

  • Tilknyttet:
    Forfatter
    ved Microsystems and Nanotechnology ved SINTEF AS
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