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Related Experiment Video

Updated: Dec 27, 2025

High-resolution Patterning Using Two Modes of Electrohydrodynamic Jet: Drop on Demand and Near-field Electrospinning
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Parallel, Multi-Material Electrohydrodynamic 3D Nanoprinting.

Mojun Chen1, Heekwon Lee1, Jihyuk Yang1

  • 1Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China.

Small (Weinheim an Der Bergstrasse, Germany)
|February 27, 2020
PubMed
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A new parallel nanoscale electrohydrodynamic (EHD) method enhances 3D nanoprinting productivity and material diversity. This technique enables precise control over nanostructure fabrication for advanced applications.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Additive Manufacturing

Background:

  • Direct mass-transfer using liquid nanodroplets is key for micro/nanofabrication.
  • Electrohydrodynamic (EHD) dispensing enables nanosized droplet delivery but serial methods lack throughput for large areas.

Purpose of the Study:

  • To develop a parallel nanoscale EHD method for increased productivity and material diversity in 3D nanoprinting.
  • To demonstrate on-demand control over shape, placement, and material mixing in 3D printed nanostructures.

Main Methods:

  • A parallel, nanoscale EHD method utilizing a double-barreled glass nanopipette for simultaneous nanodroplet ejections.
  • Exploiting electric field distribution from cross talk between pipette apertures to steer ejection paths.
  • Characterization of printing conditions for precise fabrication control.
Keywords:
3D printed nanostructures3D printingdouble-barreled nanopipetteselectrohydrodynamic printingnanodropletsparallelization

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Last Updated: Dec 27, 2025

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Main Results:

  • Demonstrated parallel fabrication of nanomeshes and nanowalls using silver, quantum dots (CdSe/ZnS), and composites.
  • Achieved on-demand control over shape, placement, and material mixing in 3D printed nanostructures.
  • Enabled programmed designs in parallel 3D nanoprinting.

Conclusions:

  • The developed parallel nanoscale EHD method significantly advances productivity in 3D nanoprinting.
  • This technique facilitates facile heterogeneous integration of functional 3D nanodevices.
  • Offers improved material diversity and precise control for nanoscale fabrication.