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Corrosion

Corrosion

The degradation of metals due to natural electrochemical processes is known as corrosion. Rust formation on iron, tarnishing of silver, and the blue-green patina that develops on copper are examples of corrosion. Corrosion involves the oxidation of metals. Sometimes it is protective, such as the oxidation of copper or aluminum, wherein a protective layer of metal oxide or its derivatives forms on the surface, protecting the underlying metal from further oxidation. In other cases, corrosion is...

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Updated: Jan 21, 2026

An Inverse Analysis Approach to the Characterization of Chemical Transport in Paints

An Inverse Analysis Approach to the Characterization of Chemical Transport in Paints

Published on: August 29, 2014

Hydrogel Paint.

Xi Yao¹, Junjie Liu^1,2, Canhui Yang¹

¹School of Engineering and Applied Sciences, Kavli Institute for Bionano Science and Technology, Harvard University, MA, 02138, USA.

Advanced Materials (Deerfield Beach, Fla.)

|August 6, 2019

Summary

This summary is machine-generated.

This study introduces hydrogel paints that decouple polymerization from crosslinking and interlinking. This innovation enables stable, versatile hydrogel coatings on diverse substrates, expanding their applications.

Keywords:

adhesion friction hydrogel paint viscosity

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Last Updated: Jan 21, 2026

An Inverse Analysis Approach to the Characterization of Chemical Transport in Paints

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Published on: August 29, 2014

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Fragmenting Bulk Hydrogels and Processing into Granular Hydrogels for Biomedical Applications

Fragmenting Bulk Hydrogels and Processing into Granular Hydrogels for Biomedical Applications

Published on: May 17, 2022

Area of Science:

Materials Science
Polymer Chemistry

Background:

Stable hydrogel coatings require polymerization, crosslinking, and interlinking, which typically occur simultaneously.
This concurrency limits the widespread use of hydrogel coatings.

Purpose of the Study:

To present a novel principle for creating hydrogel paints.
To decouple polymerization from crosslinking and interlinking for enhanced hydrogel coating applications.

Main Methods:

Hydrogel paints are formulated by copolymerizing monomers and coupling agents into polymer chains without initial crosslinking.
Users apply the paint, and coupling agents facilitate crosslinking and substrate interlinking during cure.

Main Results:

Demonstrated hydrogel coatings (2-20 µm thick) on medical nitinol wires via dip coating.
Achieved an eightfold reduction in friction and maintained stability over 50 test cycles.
Showcased stimuli-responsive structures and antifouling applications.

Conclusions:

The developed hydrogel paint principle allows for user-applied, stable hydrogel coatings.
This approach broadens the applicability of hydrogel coatings in various fields, including biomedical devices.