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Updated: May 19, 2026

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

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

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

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

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

Published on: March 13, 2016

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Last Updated: May 19, 2026

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Published on: November 4, 2021

A Microfluidic Chip for ICPMS Sample Introduction

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

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.