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Related Experiment Video

Updated: May 9, 2026

Flow-assisted Dielectrophoresis: A Low Cost Method for the Fabrication of High Performance Solution-processable Nanowire Devices

Flow-assisted Dielectrophoresis: A Low Cost Method for the Fabrication of High Performance Solution-processable Nanowire Devices

Published on: December 7, 2017

Fabrication of nanoassemblies using flow control.

Chad Ropp¹, Zachary Cummins, Sanghee Nah

¹Department of Electrical and Computer Engineering/IREAP, University of Maryland, College Park, Maryland 20742, United States.

|July 26, 2013

Summary

This summary is machine-generated.

We developed a microfluidic method to precisely position and assemble synthetic nanostructures into complex nanoassemblies. This technique enables controlled placement for advanced nanoscale engineering.

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Area of Science:

Nanotechnology
Materials Science
Microfluidics

Background:

Synthetic nanostructures like nanoparticles and nanowires are key building blocks for integrated nanoscale systems.
Precise control over nanostructure positioning and orientation is crucial for creating functional nanoassemblies.

Purpose of the Study:

To demonstrate a microfluidic approach for the controlled positioning, orientation, and assembly of synthetic nanostructures.
To enable the creation of complex nanoassemblies using modular nanoscale components.

Main Methods:

Utilizing microfluidic flow control to manipulate nanostructures.
Employing a cross-linking photoresist for the immobilization of nanostructures at desired locations and orientations.
Leveraging immobilized nanostructures as templates for subsequent assembly steps.

Main Results:

Successful positioning and orientation of individual nanostructures within microfluidic channels.
Demonstrated the ability to assemble nanostructures into defined nanoassemblies.
Showcased immobilized nanostructures acting as guides for precise placement of additional components.

Conclusions:

The developed microfluidic method offers precise control over nanostructure assembly.
This technique provides a versatile platform for fabricating integrated nanoscale systems.
Immobilized nanostructures can be effectively utilized as scaffolds for hierarchical assembly.