Abstract
This article reports on a new rout to synthesize of copper nanoparticles with aqueous extracts from Couroupita guianensis Aubl. This is an environmentally friendly, inexpensive, and time-saving method of producing nanoparticles. The aqueous extracts of petals, stems, bark, and leaves were used to synthesize the nanoparticles. Plant extracts induce the reduction of Cu2+ ions into CuNP and act as protection and stabilization agents. The formation of CuNPs was monitored throughout the synthesis process by absorption spectra from the UV–Vis spectrophotometer. Fourier transfer infrared (FTIR) and Scanning Electron Microscope (SEM) were used to characterize the synthesized nanoparticles. The new synthesized nanoparticles exhibited good antibacterial activity against Bacillus Subtilis and Escherichia coli. The antibacterial properties have also proven to be a good result for bacteria reduction with using copper nanoparticles as a low cost-effective production for sustainable applications from Couroupita guianensis Aubl extract.