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Related Experiment Video

Updated: May 19, 2026

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
10:17

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Published on: November 4, 2021

Note: a microfluidic chip setup for capillarity-assisted particle assembly.

M J K Klein1, C Kuemin, T Tamulevicius

  • 1IBM Research - Zurich, IBM Research GmbH, 8803 Rüschlikon, Switzerland.

The Review of Scientific Instruments
|September 4, 2012
PubMed
Summary
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We created a microfluidic chip for precise particle assembly using capillary action. This new method enables complex particle arrangements not possible with older techniques.

Area of Science:

  • Microfluidics
  • Materials Science
  • Nanotechnology

Background:

  • Capillarity-assisted particle assembly (CAPA) is a technique for arranging particles.
  • Conventional CAPA methods have limitations in controlling assembly location and composition.

Purpose of the Study:

  • To develop an advanced microfluidic chip setup for enhanced CAPA.
  • To demonstrate the capability of the new setup for creating complex particle assemblies.

Main Methods:

  • A microfluidic chip was designed to form a capillary bridge between the chip aperture and an assembly template.
  • Particle suspension is supplied through a microfluidic channel on the chip.
  • The setup allows for controlled particle assembly location and tunable suspension composition.

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A Microfluidic Chip for ICPMS Sample Introduction
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A Microfluidic Chip for ICPMS Sample Introduction

Published on: March 5, 2015

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

Related Experiment Videos

Last Updated: May 19, 2026

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
10:17

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Published on: November 4, 2021

A Microfluidic Chip for ICPMS Sample Introduction
11:16

A Microfluidic Chip for ICPMS Sample Introduction

Published on: March 5, 2015

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

Main Results:

  • The microfluidic CAPA setup successfully controlled particle assembly.
  • Complex particle assemblies, including composite particle arrays and particle gradients, were achieved.
  • These results surpassed the capabilities of conventional CAPA setups.

Conclusions:

  • The developed microfluidic chip offers precise control over particle assembly.
  • This technology enables the creation of intricate particle structures previously unattainable.
  • The microfluidic CAPA system represents a significant advancement in particle assembly techniques.