Journal
NANO CONVERGENCE
Volume 5, Issue -, Pages -Publisher
SPRINGER
DOI: 10.1186/s40580-018-0142-5
Keywords
Nerium oleander; Green synthesis; Gold nanoparticle; Catalyst; Anti-cancer
Funding
- Science and Engineering Research Board (SERB), India [EMR/2016/001123]
- India Srilanka project [DST/INT/SL/P25/2016]
- UGC-SAP DRS II
- DST-FIST New Delhi
- [UGC-MRPMAJOR-CHEM-2013-35629]
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The phytochemicals present in the stem bark extract of Nerium oleander (commonly known as Karabi) have been utilized for the green synthesis of stable gold-conjugated nanoparticles at room temperature under very mild conditions. The green synthesized gold-conjugated nanoparticles were characterized by surface plasmon resonance spectroscopy, High resolution transmission electron microscopy, X-ray diffraction studies and dynamic light scattering. A mechanism for the synthesis and stabilization of gold-conjugated nanoparticles (AuNPs) has been proposed. Anticancer activity of the stabilized AuNPs studied against MCF-7 breast cancer cell line revealed that the stabilized AuNPs were highly effective for the apoptosis of cancer cells selectively. The antioxidant activity of the stem bark extract of Nerium oleander has also been studied against a long lived 2,2-diphenylpicrylhydrazyl radical at room temperature. Moreover, the utilization of the stabilized AuNPs as a catalyst has also been demonstrated.
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