A comprehensive review on the green synthesis of silver nanoparticles from marine sources.

The primary purpose of this review is to explore the green synthesis of silver nanoparticle (AgNP) using natural biomolecules derived from marine sources. This review aims to evaluate the effectiveness of environmentally friendly approaches for synthesizing AgNPs and to examine their potential applications across various fields such as medicine, biotechnology, and environmental remediation. The key research question focuses on understanding how marine biomolecules, including polysaccharides, proteins, enzymes, amino acids, alkaloids, and vitamins, contribute to the formation of AgNPs and how these green-synthesized nanoparticles retain their functional properties.

Green synthesis of zinc oxide nanoparticles using aqueous extract of shilajit and their anticancer activity against HeLa cells.

In the present study, ZnO nanoparticles have been synthesized using an aqueous extract of shilajit. The nanoparticles were characterized using different techniques such as UV (ultraviolet-visible spectrophotometer), FTIR (Fourier transform infrared), XRD (X-ray diffraction), particle size analysis, SEM (scanning electron microscope) and EDAX (Energy-dispersive X-ray) analysis. The UV absorption peak at 422.