ABSTRACT
Metal nanoparticles have attracted considerable attention from researchers for their unique physical, chemical and biological properties (Bhattacharyya and Singh 2009, Rizvi and Saleh 2018) that result from shape, size, and composition of metallic nanomaterials (Lee and Jun 2019). It is claimed that the most important property of nanoparticles is the ratio of their surface area to volume, which easily allows them to interact with other molecules (Harish et al. 2018). Metal nanoparticles have exhibited their potential in biotechnology, bioremediation of environmental pollutants, medicine for gene delivery in treatment or prevention of genetic disorders, as delivery of antigen for vaccination or better drug-delivery methods. However, there is a need to develop environment-friendly procedures for the synthesis of nanoparticles (Golinska et al. 2014). Biological methods of nanoparticle synthesis are more useful than physical and chemical methods that involve the use of hazardous chemicals, different kinds of radiations and high cost (Ingle et al. 2008, Wolska et al. 2017, Yusof et al. 2019).
