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Wednesday, 15 July 2020

Anti-corrosion and Anti-microbial

Thursday, 19 May 2011 | Posted by: Prof. Rigoberto Advincula, Case Western Reserve University

Corrosion is a big problem as recently discussed. Equally challengin is Biofilm formation on conducting materials (metal, metal alloys, metal oxides, and electrodes) which has emerged as a significant problem in the long-term use of coatings in the marine and industrial apparatus. Biofilm formation usually is followed by slication especially in seawage, marine and goethermal environments, Strategies for controlling bacterial colonization have focused on improving and developing antimicrobial materials and design to inhibit biofilm formation.

Examples of antimicrobial agents previoulsy used as surface coatings that have shown reduced bacterial adhesion are antibiotics, quaternary ammonium salts,cationic peptides, and metal ions. However, problems related to the development of microbial resistance, surface coating difficulties, and relatively high costs make these approaches unsuitable for long-term antimicrobial coatings.  Expect nanomaterials like carbon nanotubes, graphene, Ag nanoparticles, clay nanoparticles to lead the way in the future.

Rigoberto Advincula, Prof. University of Houston, e-mail:

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