ABSTRACT
Biological synthesis of nanoparticles proved to be cost effective over chemical means as it does not involve physical barriers with regard to reducing agents and eliminates the toxic effects of chemicals used for the synthesis. At present, a number of living organisms are already known to synthesize nanoparticles such as cyanobacteria, bacteria, fungi, acitomycetes, biomolecular and various plant materials such as Cinnamomum camphora, Medicago sativa, Pelargonium graveolens, Avene sativa, Azardirchta indica, Tamarindus indica, Parthenium hysterophorus, Tritium vulgare, Acanthella elongata, Sesuvivm potulacastrum and gold nanoparticles also synthesized by biomolecules like Honey. Leaf extracts of Neem, Geranium, Hibiscus, Cinnamon, Tamarind, Coriander, Brassicaceae spp. and many plant and seeds such as Gram, Maize, Moong have been used for development of nanoparticles. So, the living plants are considered as eco-friendly nanofactories [1, 7].
