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Träfflista för sökning "WFRF:(Saharil Farizah 1976 ) "

Sökning: WFRF:(Saharil Farizah 1976 )

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1.
  • Carlborg, Fredrik, et al. (författare)
  • RAPID PERMANENT HYDROPHILIC AND HYDROPHOBIC PATTERNING OF POLYMER SURFACES VIA OFF-STOICHIOMETRY THIOL-ENE (OSTE) PHOTOGRAFTING
  • 2012
  • Ingår i: Proceedings Micro Total Analysis Systems (muTAS) 2012. ; , s. 677-679
  • Konferensbidrag (refereegranskat)abstract
    • In this work we have developed a simple and robust method to permanently pattern alternating hydrophobic and hydrophilic surfaces in off-stoichiometry thiol-ene (OSTE) polymer microchannels. By being able to tune the number of unreacted thiol surface groups of the OSTE Thiol polymers and by taking advantage of spatially photo-controlled surface grafting of methacrylate monomers we achieve defined areas with contact angles from 20° to 115° within one single channel. The surface modification remains stable after storage in air (>2 months) or water (>24h).
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3.
  • Saharil, Farizah, 1976-, et al. (författare)
  • SUPERIOR DRY BONDING OF OFF-STOICHIOMETRY THIOL-ENEEPOXY (OSTE(+)) POLYMERS FOR HETEROGENEOUS MATERIALLABS-ON-CHIP
  • 2012
  • Ingår i: Proceedings Micro Total Analysis Systems (muTAS) 2012. - 9780979806452 ; , s. 1831-1833
  • Konferensbidrag (refereegranskat)abstract
    • We demonstrate biocompatible bonding to a multitude of LoC substrates using OSTE(+), a novel polymer formulation with a unique dual cure system developed specifically for microfluidic applications. OSTE(+) allows for soft lithography microstructuring, strong biocompatible dry bonding to almost any substrate during LoCmanufacturing, while simultaneously mimicking the mechanical properties found in thermoplastic polymers, hence allowing for true prototyping of commercial LoCs. In this work, we describe the simple micropatterning process, curing mechanisms and show leak-free dry bonding to nine different substrate materials. Uniquely, strong bonding is achieved to COC, the thermoplastic of choice for microfluidics, which opens up the possibility of hybrid thermoplastic/OSTE(+) LoCs. In this work, we demonstrate bonding to nine different untreated substrates at 37°C and room temperature to demonstrate good bonding properties even at lower temperature. We also show the high resilience of the epoxy bond by immersing an aluminum substrate with a bonded OSTE(+) layer into boiling water while simultaneously subjecting the assembly to pressurized air.
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  • Resultat 1-3 av 3

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