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Alignment System and Application for a Micro/Nanofluidic Chip.

Junyao Wang1, Lu-Lu Han2, Ye-Ming Sun3

  • 1School of Mechanical Engineering, Northeast Electric Power University, Jilin 132012, China. junyao_0001@126.com.

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|November 28, 2018
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Summary
This summary is machine-generated.

This study introduces a direct pre-bonding technology for micro/nanofluidic chips, preventing misalignment during manufacturing. The novel alignment system achieved a 500-fold enrichment factor in an ion enrichment experiment.

Keywords:
alignment systemchip fabricatingion enrichmentmicro/nanochannelmicro/nanofluidic

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Area of Science:

  • Microfluidics
  • Nanotechnology
  • Materials Science

Background:

  • Traditional micro/nanofluidic chip manufacturing faces post-transfer misalignment issues.
  • Existing alignment methods can be time-consuming and costly.
  • High-integration alignment systems are crucial for efficient chip fabrication.

Purpose of the Study:

  • To present a direct pre-bonding technology for micro/nanofluidic chips.
  • To develop a highly integrated alignment system to overcome manufacturing challenges.
  • To demonstrate the performance and practicability of the manufactured micro/nanofluidic chip.

Main Methods:

  • Developed a novel alignment system integrating microscopy, vacuum, and alignment devices.
  • Implemented a 'fix-with-microchannels, move-with-nanochannels' chip alignment strategy.
  • Conducted an ion enrichment experiment using fluorescein isothiocyanate (FITC) to validate chip performance.

Main Results:

  • Successfully manufactured micro/nanofluidic chips with reduced time and cost.
  • Achieved a FITC concentration enrichment value of approximately 5 μM.
  • Demonstrated a maximum enrichment factor of about 500-fold.

Conclusions:

  • The direct pre-bonding technology effectively prevents post-misalignment issues.
  • The high-integration alignment system offers advantages in efficiency and cost-effectiveness.
  • The developed micro/nanofluidic chip shows excellent performance for applications like ion enrichment.