Journal
MATERIALS RESEARCH EXPRESS
Volume 3, Issue 7, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/3/7/075010
Keywords
graphene oxide; nanocomposites; Neem leaves extract; SERS; cell viability
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Funding
- University Grant Commission, Govt. of India
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Silver-graphene oxide, Gold-graphene oxide, Silver-Gold-graphene oxide nanocomposites were synthesized from Neem leaves (Azadirachta indica) extract using a bio-green one-pot method. The synthesized bio-green nanocomposites were characterized by UV-visible spectroscopy, x-ray diffractogram, transmission electron microscopy, x-ray photoelectron spectroscopy and Raman spectroscopy. The results indicated the decoration of similar to 10 nmof silver, similar to 20 nmof gold and similar to 15 nmof silver-gold nanoparticles on a graphene oxide sheet. The synthesized nanocomposites showed enhancement in surface enhanced Raman spectroscopy with alizarin and also enhancement in cell viability of Chang liver cell lines which may be due to a synergetic effect of nanoparticles and graphene oxide.
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