Green Nanoparticles from Plant Extracts with Antibacterial Effect

Abstract

Parts of plants are involved in the green synthesis of various types of natural nanoparticles (NPs). Many biologically active substances from plant extracts are useful for medical use. The aim of our study is to obtain biologically active substances from plants that are associated with the formation of nanoparticles. We have proven that plant extracts from Cotinus coggygria, Chamomilla recutita, Calendula officinalis and Plantago major are very rich in those substances, which are playing an important role as reducing and capping agents of the Zn and Cu from ZnSO4 or CuSO4 in the synthesis of nanoparticles by ecological methods at various temperatures and different periods of time. The formation of NPs has been proven by UV-spectroscopic methods and scanning electron microscopy. The antibacterial properties of the obtained NPs were tested by well-agar diffusion method and showed antibacterial activity against different strains of Escherichia coli and Bacillus subtilis.