Catalytic and antioxidant activity of silver nanoparticles fabricated by Neolamarckia cadamba bark extract

Int J Phytoremediation. 2023;25(14):1979-1987. doi: 10.1080/15226514.2023.2214243. Epub 2023 May 22.

Abstract

Plant parts have unfathomable potential in the synthesis of nanoparticles. The current study was designed for the photosynthesis of silver nanoparticles (NC-AgNPs) using bark extract of N. cadamba. Different analytical methods were used to characterize the synthesized nanoparticles. HR-TEM analysis identifies the formation of multi-shaped NC-AgNPs like spherical, quasi-spherical, rod-shaped, trigonal, square, pentagonal, and hexagonal with a size range of 18-91 nm. The crystallize size of NC-AgNPs was found to be 27.6 nm. The catalytic effectiveness of NC-AgNPs in degrading Crystal violet (CV) dye is remarkable. Important parameters such as the effect of catalyst dose and pH were investigated. Dose-dependentantioxidant activity of NC-AgNPs was determined by using 2,2-Diphenyl-1-picrylhydrazyl (DPPH) assay. Low-cost synthesis and eco-friendly reagents were the salient features that made NC-AgNPs more attractive toward catalytic and antioxidant activities.

Keywords: Antioxidant activity; Neolamarckia cadamba; catalytic activity; crystal violet; silver nanoparticles.

Plain language summary

N. cadamba bark was used the first time as a green source for the synthesis of silver nanoparticles.The synthesis of different shapes of nanoparticles in one-step synthesis.The study of NC-AgNPs for their catalytic and antioxidant activities is reported for the first time.

MeSH terms

  • Anti-Bacterial Agents / analysis
  • Anti-Bacterial Agents / chemistry
  • Antioxidants* / analysis
  • Antioxidants* / chemistry
  • Biodegradation, Environmental
  • Metal Nanoparticles*
  • Plant Bark / chemistry
  • Plant Extracts / chemistry
  • Silver / chemistry

Substances

  • Antioxidants
  • Plant Extracts
  • Silver
  • Anti-Bacterial Agents