Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Evaluating Variability in Extracellular Vesicle Characterization Across Measurement Techniques.

Journal of extracellular biology·2026
Same author

Dynamics of particles suspended in field-enhanced microscale flows.

Soft matter·2026
Same author

Active electroceutical treatment of Pseudomonas aeruginosa infected murine wounds.

PloS one·2025
Same author

Surface charge regulation mediates anomalous ion transport in silica nanochannels.

The Analyst·2025
Same author

Mechanical property estimation of sarcoma-relevant extracellular vesicles using transmission electron microscopy.

Journal of extracellular biology·2024
Same author

Application of Microfluidics for Bacterial Identification.

Pharmaceuticals (Basel, Switzerland)·2022

Related Experiment Video

Updated: Aug 6, 2025

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

3.3K

Continuous flow microfluidics for colloidal particle assembly on porous substrates.

Varun Lochab1, E Daniel Ewim1, Shaurya Prakash1

  • 1Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, 43210, OH, USA. prakash.31@osu.edu.

Soft Matter
|March 21, 2023
PubMed
Summary

A novel template-free method enables rapid self-assembly of colloidal particles into high-aspect ratio structures using continuous flow and porous substrates. This technique offers a faster, more versatile alternative to traditional templating and solvent evaporation methods for bottom-up fabrication.

More Related Videos

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

10.8K
A Modular Microfluidic Technology for Systematic Studies of Colloidal Semiconductor Nanocrystals
09:58

A Modular Microfluidic Technology for Systematic Studies of Colloidal Semiconductor Nanocrystals

Published on: May 10, 2018

9.6K

Related Experiment Videos

Last Updated: Aug 6, 2025

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

3.3K
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

10.8K
A Modular Microfluidic Technology for Systematic Studies of Colloidal Semiconductor Nanocrystals
09:58

A Modular Microfluidic Technology for Systematic Studies of Colloidal Semiconductor Nanocrystals

Published on: May 10, 2018

9.6K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemical Engineering

Background:

  • Colloidal particle self-assembly is crucial for bottom-up fabrication in diverse applications like energy and biosensing.
  • Existing methods like substrate templating and solvent evaporation have limitations in terms of substrate preparation, assembly time, and environmental control.

Purpose of the Study:

  • To demonstrate a template-free, continuous flow process for self-assembling colloidal particles.
  • To achieve rapid formation of high-aspect ratio structures using this novel method.

Main Methods:

  • A continuous flow process utilizing continuous solvent drainage through porous substrates was employed.
  • Colloidal particles were assembled on both polymeric and metallic porous membranes.

Main Results:

  • High-aspect ratio colloidal particle structures (aspect ratio >10^3) were successfully fabricated.
  • Rapid assembly times were achieved compared to conventional methods.
  • Linear arrays and grid structures were formed using the template-free approach.

Conclusions:

  • The demonstrated continuous flow process offers an efficient and rapid method for colloidal particle self-assembly.
  • This template-free technique overcomes limitations of previous methods, enabling versatile fabrication of complex structures.
  • The process is applicable to various porous substrates, expanding its potential applications.