COMPLEX OXIDATION OF TMB CATALYZED WITH PEROXIDASE-LIKE AU NANOPARTICLES

• DOI: 10.37572/EdArt_2908226686

• Palavras-chave: Self-Assembly. Nanofiber. Tetramethylbenzidine. Hybrid Film. Au Nanoparticle.

• Keywords: Self-Assembly. Nanofiber. Tetramethylbenzidine. Hybrid Film. Au Nanoparticle.

• Abstract:

  Metal nanoparticles with catalytic properties are very promising to be used as detectors in biochemical reactions. Herein reveals the catalytic properties and relevant in-situ self-assembly abilities of hybrid films of Au nanoparticles (Au NPs) and cellulose for the oxidation of benign chromogen 3,3’,5,5’-tetramethylbenzidine (TMB) with hydrogen peroxide (H2O2). The peroxidase-like properties of hybrid films are inherited from those of colloidal Au NPs and increase with their contents of Au NPs. It is discovered that the oxidized products of TMB grow in-situ and assemble into rod-like and tumbleweed-like nanofiber assemblies on hybrid films. The rod-like nanofibers show a magnificent polarizing phenomenon under polarized light because of polycrystalline globular nanoparticles inside. The in-situ self-assembly of polarizing nanofibers of chromogen catalyzed with hybrid films creates an opportunity for the synthesis of novel organic nanomaterials and the enhanced detection of biochemical products under polarized light. 

• Número de páginas: 15