Grafting of multiwalled carbon nanotubes with pyrazole derivatives: characterization, antimicrobial activity and molecular docking study.

Introduction: It is well known that the grafted multiwalled carbon nanotubes (MWCNTs) have antibacterial activity and lower cytotoxicity. Moreover, pyrazole derivatives have a broad spectrum of biological activity due to their fertile template for many medicinal drugs. On view of these findings we report herein the hybridization between MWCNTs and some pyrazole derivatives as antibacterial agents.

Thermal properties, crystallization and antimicrobial activity of chitosan biguanidine grafted poly(3-hydroxybutyrate) containing silver nanoparticles.

Green synthesis of novel nanocomposites series based on chitosan biguanidine grafted poly(3-hydroxybutyrate) copolymer (ChG-g-PHB) and silver nanoparticles (AgNPs) was successfully done via in situ reduction of AgNO in the copolymer matrix. Transmission electron microscopy verified the homogeneous dispersion of spherical shape of the AgNPs with an average particle size 12.3 to 19.