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3D computer-aided nanoprinting for solid-state nanopores.

Haibo Ding¹, Qiming Zhang, Zhongze Gu

¹Laboratory of Artificial-Intelligence Nanophotonics, School of Science, RMIT University, Melbourne, VIC 3001, Australia. min.gu@rmit.edu.au.

Nanoscale Horizons

|April 8, 2020

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Researchers created tiny solid-state nanopores using laser writing, achieving unprecedented control over size and shape. This breakthrough enables new possibilities for functional devices and artificial membranes.

Area of Science:

Materials Science
Nanotechnology
Optics

Background:

Solid-state nanopores are crucial for various applications, including sensing and filtration.
Current fabrication methods often struggle to achieve precise control over nanopore dimensions and shapes.

Purpose of the Study:

To develop a novel method for fabricating solid-state nanopores with controllable sizes and shapes.
To achieve nanopore dimensions beyond the diffraction limit using advanced fabrication techniques.

Main Methods:

Direct laser writing utilizing computer-aided two-photon polymerization.
Theoretical and experimental investigation of the accumulation effect in two-photon polymerization.

Main Results:

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Last Updated: Dec 24, 2025

Fine-tuning the Size and Minimizing the Noise of Solid-state Nanopores

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Published on: October 31, 2013

Planar and Three-Dimensional Printing of Conductive Inks

Planar and Three-Dimensional Printing of Conductive Inks

Published on: December 9, 2011

Metal-Assisted Electrochemical Nanoimprinting of Porous and Solid Silicon Wafers

Metal-Assisted Electrochemical Nanoimprinting of Porous and Solid Silicon Wafers

Published on: February 8, 2022

Successfully generated solid-state nanopores with an inner diameter as small as ~λ/10 (76.9 nm).

Demonstrated the ability to stack nanopores to create channels with desired asymmetric shapes.

Achieved nanopore fabrication significantly beyond the Abbe diffraction limit.

Conclusions:

The direct laser writing technique offers unprecedented control over solid-state nanopore fabrication.
This method opens new avenues for creating functional nanoporous devices and optimizing artificial membrane gating properties.