Abstract
In the present communication potential of Aegle Marmelos extract is demonstrated as reducing and stabilizing agent for the eco-friendly synthesis of silver nanoparticles (SNPs) and gold nanoparticles (GNPs). The characteristic surface plasmon resonance peak for SNPs was observed at 425 nm, and that of GNPs was observed at 552 nm. TEM micrographs indicated spherical morphology of synthesized nanoparticles for both the cases with some deviations in GNPs. Spherical shape SNPs lie in between 10 and 30 nm and GNPs are in the range of 15-40 nm. Surface enhanced Raman scattering (SERS) activity of synthesized NPs was investigated using Rhodamine 6 G (R6G). When compared to standard R6G Raman spectrum, significant Raman enhancement was observed in R6G- nanoparticles conjugate. When applied for the SERS detection of DNA, well resolved Raman peaks were observed in SERS spectrum of DNA with the synthesized nanoparticles which favors the application of biosynthesized nanoparticles as SERS substrate.
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