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Related Experiment Video

Updated: Dec 26, 2025

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

Capillary Assembly of Liquid Particles.

Cicely Shillingford¹, Brandon M Kim¹, Marcus Weck¹

¹Molecular Design Institute and Department of Chemistry, New York University, New York, NY, 10003, USA.

Small (Weinheim an Der Bergstrasse, Germany)

|March 20, 2020

Summary

This summary is machine-generated.

This study introduces liquid particles (LPs) for capillary assembly, enabling the creation of custom-shaped polymer microarrays and colloids. This versatile method allows for precise control over material deposition and geometric diversity in engineered materials.

Keywords:

capillary assembly colloids liquid particles

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Area of Science:

Materials Science
Nanotechnology
Polymer Chemistry

Background:

Capillary assembly is a key technique for creating colloidal structures.
Existing methods often lack precise control over the geometry of the final structures.

Purpose of the Study:

To develop a novel method for fabricating geometrically diverse polymer microarrays and anisotropic colloids.
To explore the use of liquid particles (LPs) in capillary assembly for controlled material deposition.

Main Methods:

Utilizing liquid particles (LPs) composed of oligomerized 3-(trimethoxysilyl)propyl methacrylate for capillary assembly within patterned templates.
Investigating the effects of solvent evaporation, assembly temperature, and incorporation of small molecules (e.g., dyes) on LP behavior and final structure formation.
Solidifying the assembled LPs to create stable polymer microarrays and extracting them to yield anisotropic colloids.

Main Results:

Demonstrated successful deposition and coalescence of LPs within template cavities, adopting the template's geometry.
Showcased the generation of fluorescent polymer microarrays by incorporating dyes into LPs.
Achieved tunable cavity filling by adjusting assembly temperature and produced faceted, solidified particles up to 14 µm with high shape fidelity.

Conclusions:

Liquid particle capillary assembly offers a highly controllable fabrication scheme for geometrically diverse polymer microarrays and anisotropic colloids.
This method expands the synthetic toolbox for scalable, hierarchically engineered materials, including those doped with dyes and analytes.