Ionic liquid mediated green synthesis of Ag-Au/Y2O3 nanoparticles using leaves extracts of Justicia adhatoda: Structural characterization and its biological applications |
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Authors: | Nithya Pandiyan Balaji Murugesan Mayakrishnan Arumugam Dhilipkumar Chinnaalagu Selvam Samayanan Sundrarajan Mahalingam |
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Affiliation: | 1. Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630 003, Tamil Nadu, India;2. Division of Advanced Materials Engineering, Kongju National University, South Korea 31080 |
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Abstract: | In the present work, a facile synthesis was applied for the silver-gold decorated yttrium oxide nanoparticles with the use of Justicia adhatoda (leaves extract) and BMIM] PF6 (Ionic liquid) as a capping/stabilizing agent. The XRD analysis showed that Ag-Au/Y2O3 nanoparticles have a face-center cubic structure and crystallite size of 30 nm. The Y-O stretching bands were observed in the FT-IR spectrum at 464 to 495 cm?1. The band gap of the silver-gold decorated Y2O3 nanoparticles was estimated as 5.75 eV from the UV-DRS spectrum. In the SEM and TEM images, the morphology of silver-gold/Y2O3 nanoparticles shows a nanoflake-like structure. The presence of silver, gold, yttrium and oxygen of elements has been confirmed by the EDX spectrum. The antibacterial activity of the nanoparticles was evaluated for the Staphylococcus aureus (Gram-positive) and Escherichia coli (Gram-negative) bacteria. The anticancer activity was also studied by the human cervical cancer cell line. The silver-gold decorated yttrium oxide nanoparticles revealed an exceptional microbicidal and antitumor activity when compared with yttrium oxide, silver decorated yttrium oxide and gold decorated yttrium oxide. |
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Keywords: | Cervical cancer |
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