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Related Experiment Video

Updated: Oct 19, 2025

Fabrication of Gradient Nanopattern by Thermal Nanoimprinting Technique and Screening of the Response of Human Endothelial Colony-forming Cells

Fabrication of Gradient Nanopattern by Thermal Nanoimprinting Technique and Screening of the Response of Human Endothelial Colony-forming Cells

Published on: July 1, 2018

Gradient wettability induced by deterministically patterned nanostructures.

Siyi Min^1,2, Shijie Li¹, Zhouyang Zhu¹

¹Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077 China.

Microsystems & Nanoengineering

|September 27, 2021

Summary

This summary is machine-generated.

Researchers created large surfaces with continuously varying wettability using ordered gradient nanostructures and a novel, cost-effective fabrication method. This breakthrough enables precise control over liquid interactions on nanoscale surfaces.

Keywords:

Structural properties

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Last Updated: Oct 19, 2025

Fabrication of Gradient Nanopattern by Thermal Nanoimprinting Technique and Screening of the Response of Human Endothelial Colony-forming Cells

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Published on: July 1, 2018

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Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices

Published on: March 27, 2019

Area of Science:

Materials Science
Nanotechnology
Surface Science

Background:

Controlling surface wettability is crucial for various applications.
Existing methods for creating wettability gradients can be complex and expensive.

Purpose of the Study:

To develop a large-scale surface with continuously varying wettability.
To establish a facile and reproducible fabrication method for gradient nanostructures.
To investigate and model the wetting behavior on these engineered surfaces.

Main Methods:

Utilized nonuniform interference lithography with Gaussian laser beams to generate gradient nanostructures.
Developed a novel method to transfer photoresist patterns to UV-cured molding material, avoiding costly processes.
Employed thermal-nanoimprint lithography (NIL) for reproducible manufacturing of gradient wettability surfaces.
Investigated water droplet wetting behavior and proposed a hybrid wetting model.

Main Results:

Successfully fabricated large-scale surfaces with continuously varying wettability.
Demonstrated a cost-effective and reproducible NIL-based fabrication process.
The proposed hybrid wetting model accurately captured experimental contact angle measurements.
Provided insights into liquid behavior on nanoscale patterned surfaces.

Conclusions:

Achieved precise control over surface wettability gradients through ordered nanostructures.
The developed fabrication technique offers a scalable and economical approach.
The study advances the understanding of wetting phenomena on engineered nanostructured surfaces.