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Related Experiment Video

Updated: Jun 26, 2026

Large-area Scanning Probe Nanolithography Facilitated by Automated Alignment and Its Application to Substrate Fabrication for Cell Culture Studies
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Nanostructured biosensing platform-shadow edge lithography for high-throughput nanofabrication.

John G Bai1, Woon-Hong Yeo, Jae-Hyun Chung

  • 1Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA.

Lab on a Chip
|January 22, 2009
PubMed
Summary

This study introduces a low-cost, high-resolution nanolithography technique for fabricating addressable nanopattern arrays. This method enables efficient, label-free biomolecule detection in nanostructured biosensors.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Biomedical Engineering

Background:

  • Nanostructured biosensors require addressable nanopattern arrays for multiplexed and label-free biomolecule detection.
  • Existing nanolithography methods struggle to achieve both high resolution and high throughput cost-effectively.
  • The development of scalable, low-cost nanopatterning is crucial for advancing biosensor technology.

Purpose of the Study:

  • To present a novel, high-resolution, and high-throughput nanolithography method for fabricating nanopatterned arrays.
  • To demonstrate the fabrication of uniform nanogaps down to 20 nm on a wafer scale.
  • To enable the cost-effective manufacturing of nanostructured biosensors.

Main Methods:

  • Utilized compensated shadow effect during high-vacuum evaporation for nanolithography.

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Last Updated: Jun 26, 2026

Large-area Scanning Probe Nanolithography Facilitated by Automated Alignment and Its Application to Substrate Fabrication for Cell Culture Studies
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  • Fabricated uniform nanogaps with widths down to 20 nm across a 100 mm silicon wafer.
  • Employed nanogap patterns as templates for creating various dimensional nanostructures.

    • Main Results:

    • Achieved high-resolution (down to 20 nm) nanogap fabrication.
    • Demonstrated high-throughput wafer-scale manufacturing capability.
    • Successfully fabricated zero-, one-, and two-dimensional nanostructures with high yield using the nanogap template.

    Conclusions:

    • The compensated shadow effect offers a viable solution for low-cost, high-throughput, high-resolution nanolithography.
    • This method facilitates the scalable production of nanostructured biosensors.
    • The technique supports the development of advanced biosensing platforms for diverse applications.