Biogenic copper nanoparticles and their applications: A review

The objective of the present work is the introduction of a quick and simple literature survey about the green bio-synthesized of copper nanoparticles. The survey revealed that the eco-friendly preparation methods using different plant species, properties and potential applications as alternative promising for silver and gold nanoparticles. The review enumerates the classification of nanomaterials in general, green biosynthesis of nanoparticles using plant extracts and its advantages over using bacteria and fungi. The manuscript gives more details about the specific properties for copper nanoparticles as optical properties of copper nanoparticles especially surface plasmon resonance in the visible range, photoluminescence, and bandgap energy. The current review spotlights and focuses on antimicrobial and anticancer activities for copper nanoparticles against several and various types of gram-negative, gram-positive bacteria, fungi, and human cell cancers. Moreover, a new promising activity as adsorptive efficiency of copper nanoparticles for wastewater treatment was revealed.