Synthesis of silver nanoparticle using marine red seaweed Gelidiella acerosa -A complete study on its biological activity and its characterisation

The study was to evaluate the biological activity and agar extraction from nano synthesized red seaweed Gelidiella acerosa. The algae were Collected from the coastal areas of Rameswaram, TamilNadu. Seaweed was subjected to pre-treatment process with Alkaline pre-treatment. The aqueous extraction of Gelidiella acerosa were extracted by decoction method and Synthesis of AgNO3 was carried out. Silver nano synthe- sized aqueous extract was observed for the biological activities such as Anti-bacterial. Antibacterial activ- ity of the nanosynthesised seaweed extract was checked for gram-positive and gram-negative bacteria.
The Pseudomonas aeruginosa and Bacillus subtilis bacteria contains a good of zones of inhibition. Furthermore, characterization studies such as UV–spectrometry analysis, FT-IR analysis, Zeta potential and AFM.