Green Synthesis of Silver Nanoparticles Using Carica papaya L. Flesh Extract and Evaluation of its Characterization - Abstract
The synthesis of silver nanoparticles (AgNPs) through green methods utilized Carica papaya L. flesh extract as both reducing and stabilizing elements. The
color transformation of the solution from yellow to dark brown visually demonstrated Ag+ ion reduction to Ago during biosynthesis. Experimental parameters
involved testing papaya extract concentrations ranging from 25% to 100% when using silver nitrate (AgNO3
) as the starting material. UV-visible spectroscopy
verified the formation of nanoparticles through surface plasmon resonance peaks which varied between 370 to 510 nm based on extract content. TEM
microscopy showed that mostly spherical AgNPs existed with a standard size distribution averaging 21 nm. Zeta potential examinations showed outstanding
colloidal stability across all extract levels starting from 25% to 50% and reaching 100% as indicated by -26 to -43.95 mV values. Research evidence
shows that papaya extract contains enough phytochemicals to perform effective nanoparticle synthesis along with environmentally responsible manufacturing
practices at affordable prices and in large volumes. The biologically produced silver nanoparticles show promise for it use in biomedical research alongside
environmental applications.