Journal
ADVANCED MATERIALS TECHNOLOGIES
Volume 7, Issue 4, Pages -Publisher
WILEY
DOI: 10.1002/admt.202100898
Keywords
coating; nitroxide; photocleavage; radical; redox-active
Categories
Funding
- Australian Research Council [DP150100234, FT140100746]
- Faculty of Science (QUT)
- Australian Research Council [FT140100746] Funding Source: Australian Research Council
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Organic based redox active materials and coatings are increasingly being explored for energy devices, catalysts, sensors, and biomedical technologies. These materials offer the advantage of eliminating the need for expensive and unsustainable rare earth metals. Challenges include versatility in coating different substrates and creating devices that can respond to environmental stimuli.
Organic based redox active materials and coatings are increasingly being investigated as solutions for more efficient energy devices, catalysts, sensors, and biomedical technologies. Their advantage is negating the necessity for expensive and unsustainable rare earth metals seen in other redox active materials. Challenges to their wide-spread usage remain, including versatility of coatings on a wide range of substrates, and creating smart devices that can respond to environmental stimuli. A new light responsive radical releasing redox coating has been developed, that can be rapidly and stably applied to a diverse range of substrates including silicon dioxide, plastics, and microparticles. These coatings rapidly cleave upon irradiation with UV-A light to release stable nitroxides from the surface coating. These coatings are developed into microparticle sensors for radical oxygen species, which are able to detect the generation of free radicals in a model system for particulate matter pollution. These new responsive organic redox coatings also offer future potential to function as switchable organic electrodes, and biomedical surface coatings to prevent biofouling and reduce inflammation.
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