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Related Experiment Video

Updated: Jun 8, 2026

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles
11:13

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles

Published on: March 13, 2016

Particle lithography from colloidal self-assembly at liquid-liquid interfaces.

Lucio Isa1, Karthik Kumar, Mischa Müller

  • 1ETH Zürich, Laboratory for Surface Science and Technology, Wolfgang-Pauli-Strasse 10, 8093 Zürich, Switzerland. lucio.isa@mat.ethz.ch

ACS Nano
|October 12, 2010
PubMed
Summary

We developed a single-step particle lithography method for creating non-close-packed nanostructures. This technique enables independent control over feature size and separation for applications like biosensing.

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Area of Science:

  • Nanotechnology
  • Materials Science
  • Surface Chemistry

Background:

  • Particle lithography is a common method for creating nanometer-scale features.
  • Close-packed arrays produced by traditional methods are unsuitable for applications like biosensing due to feature cross-talk.

Purpose of the Study:

  • To develop a scalable, single-step particle lithography process for fabricating non-close-packed nanostructures.
  • To enable independent control over feature size and separation in lithographic masks.

Main Methods:

  • Utilized colloidal self-assembly at liquid-liquid interfaces (SALI).
  • Employed a single-step particle lithography process.
  • Fabricated regular, open particle lithography masks.

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Related Experiment Videos

Last Updated: Jun 8, 2026

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles
11:13

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles

Published on: March 13, 2016

Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles
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Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles

Published on: October 16, 2017

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
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Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

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Main Results:

  • Achieved independent control over feature size (40-500 nm) and separation (3-10 particle diameters).
  • Demonstrated the fabrication of regular, non-close-packed nanostructures.
  • Successfully produced diverse biosensing structures using the developed method.

Conclusions:

  • The SALI method offers a simple and scalable approach for producing tunable, non-close-packed nanostructures.
  • This technique is practical for fabricating advanced biosensing platforms.
  • The process overcomes limitations of traditional close-packed lithography for specific applications.