Biological Synthesis of Silver Nanoparticles Using Marine Bivalvia Anadara rhombea (Born, 1778) Shell Extract

Nanoparticles synthesis involving biological organisms, considered to be the environmentally acceptable clean and nontoxic method. Nowadays, inorganic NPs and their nanocomposites are extensively used in various industries, biomedicines, and catalysis reactions. In particular, silver NPs (AgNPs) have various important applications. In recent years, marine organism-mediated biological synthesis of NPs is gaining importance due to its easily available and eco-friendliness. The aim of the present study is to investigate the biosynthesis of silver nanoparticles using marine bivalvia Anadara rhombea shell extract. The aqueous extract A. rhombea shell treated with silver nitrate which form silver nanoparticles and confirmed by colour formation, spectroscopy and SEM techniques. The UV-visible spectrum revealed an absorbance peak of 427.2 nm, and FTIR revealed the presence of alcohols, phenols, and amines, which confirmed AgNPs formation. The average size of the nanoparticle was found to be 50.30±11.96 nm using SEM techniques. The zoo-chemical of the shell extract having strong properties helps to reduce the Ag cations (Ag+ to Ag0) to AgNPs. Overall, the present study concluded that marine bivalvia A. rhombea shell extract is a source for the synthesis of different metal-based nanoparticles (MNPs).