smart coatings
Corrosion-detecting sensor compounds, embedded in the coating, indicate incipient corrosion, allowing timely remediation of problems.
References
"The electrochemical basis for the protection of steel and aluminum by polyaniline and polyphenylene ether coatings," at Smart Coatings 2006, Orlando, FL, February 15-17, 2006.
"Conductive polymers and porphyrins," at the XIIth International Seminar on the Technology of Inherently Conductive Polymers, Boston, October 2-4, 2005.