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Biomedical Microdevices
|December 20, 2017
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Summary
This summary is machine-generated.

We developed a novel 3D lab-on-a-chip (LOC) device using PEEK and PS polymers. This cost-effective, biocompatible LOC offers hermetic sealing and mechanical stability for advanced microfluidic applications.

Keywords:
Lab-on-a-chipMicrofabricationMicrofluidicsPlasma treatmentSealing

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Area of Science:

  • Materials Science
  • Microfluidics
  • Polymer Engineering

Background:

  • Lab-on-a-chip (LOC) devices offer miniaturization and cost-effectiveness.
  • Polymers provide design flexibility for LOC fabrication.
  • Polyether ether ketone (PEEK) offers biocompatibility and hermetic sealing potential.

Purpose of the Study:

  • To explore a 3D microchannel design for lab-on-a-chip devices using PEEK and PS.
  • To achieve hermetic sealing and mechanical strength in polymer-based LOCs.
  • To investigate plasma treatment and thermal pressing for fabricating stable microchannels.

Main Methods:

  • Conceptual 3D microchannel design using PEEK and PS sheets.
  • Plasma treatment with oxygen and methane precursors.
  • Thermal pressing near the glass transition temperature (Tg) of PS.

Main Results:

  • A hermetic and mechanically strong 3D multilayer device was fabricated.
  • Plasma treatment created nanotexturing, enhancing thermal and mechanical stability.
  • X-ray tomography confirmed structural integrity and channel shape stability post-pressing.

Conclusions:

  • The PEEK-PS 3D chip design is feasible for advanced lab-on-a-chip applications.
  • The developed nanotexturing and bonding technique ensures dimensional stability.
  • This approach offers a cost-effective and biocompatible solution for microfluidic devices.