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Related Experiment Videos

Tuneable elastomeric nanochannels for nanofluidic manipulation.

Dongeun Huh1, K L Mills, Xiaoyue Zhu

  • 1Department of Biomedical Engineering, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, MI 48109-2099, USA.

Nature Materials
|May 9, 2007
PubMed
Summary
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Researchers developed flexible nanofluidic systems using nanoscale fracturing. These systems actively control fluid transport and molecule manipulation by dynamically adjusting nanochannel shapes for diverse applications.

Area of Science:

  • Nanotechnology
  • Materials Science
  • Biophysics

Background:

  • Fluidic transport in nanochannels is crucial for nanoscale phenomena and molecular manipulation.
  • Fabricating flexible nanofluidic systems that adapt to molecular needs presents significant challenges due to surface forces and device size.

Purpose of the Study:

  • To develop a method for fabricating adaptable nanofluidic systems capable of dynamic transport control.
  • To engineer elastomeric nanochannels that can be reversibly deformed with minimal force.

Main Methods:

  • Utilizing nanoscale fracturing of oxidized poly(dimethylsiloxane) to create nanochannel arrays.
  • Engineering material properties and channel geometry for controlled nanochannel deformation.
  • Investigating dynamic modulation of channel cross-section for transport control.

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Main Results:

  • Successfully fabricated nanofluidic systems with actively controllable nanochannels.
  • Demonstrated tuneable sieving and trapping of nanoparticles.
  • Showcased dynamic manipulation of single DNA molecule conformations and in situ photofabrication of nanostructures.

Conclusions:

  • Nanoscale fracturing offers a convenient method for creating versatile, elastomeric nanofluidic devices.
  • These systems enable precise control over nanofluidic transport and molecular manipulation.
  • The technology holds promise for advanced applications in molecular handling and nanomanufacturing.