Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 28, Issue 26, Pages 33927-33941Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-020-12108-w
Keywords
Ocimum americanum; Copper oxide nanoparticles; Antibacterial; Anticancer; Photocatalyst
Categories
Funding
- Bharathidasan University [03534/URF/K7/2016]
- UGC-SAP-DRS-II [F.3-9/2013[SAP-II]]
- Department of Science and Technology-Fund for Improvement of Science and Technology Infrastructure (DST-FIST)-Level-I (stage-II) [SR/FST/LSI-647/2015(C)]
- Department of Science and Technology Promotion of University Research and Scientific Excellence (DST PURSE Phase-II) of the Department of Animal Science, Bharathidasan University [SR/PURSE PHASE 2/16(G) / 16(C)]
- National Centre for Alternatives to Animal Experiments (NCAAE) under UGC-CPEPA scheme, Government of India [2-1/2013(NS/PE)]
- DST-SERB [PDF/2016/003501]
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Nanotechnology is a rapidly growing research field that actively influences and inhibits the growth of bacteria and cancer. This study focuses on the fabrication and characterization of copper oxide nanoparticles (CuONPs) using a green chemistry approach, demonstrating promising antibacterial, anticancer, and photocatalytic activities. The biofabricated CuONPs show potential for biomedical research in combating bacterial/cancer diseases and degrading azo dyes through photocatalysis.
Nanotechnology tends to be a swiftly growing field of research that actively influences and inhibits the growth of bacteria/cancer. Noble metal nanoparticles (NPs) such as silver, copper, and gold have been used to damage bacterial and cancer growth over recent years; however, the toxicity of higher NPs concentrations remains a major issue. The copper oxide nanoparticles (CuONPs) were therefore fabricated using a simple green chemistry approach. Biofabricated CuONPs were characterized using UV-visible, FE-SEM with EDS, HR-TEM, FT-IR, XRD, Raman spectroscopy, and XPS analysis. Formations of CuONPs have been observed by UV-visible absorbance peak at 360.74 nm. The surface morphology of the CuONPs showed the spherical structure and size (similar to 68 nm). The EDS spectrum of CuONPs has proved to be the key signals of copper (Cu) and oxygen (O) components. FT-IR analysis, to validate the important functional biomolecules (O-H, C=C, C-H, C-O) are responsible for reduction and stabilization of CuONPs. The monoclinic end-centered crystalline structures of CuONPs were confirmed with XRD planes. The electrochemical oxygen states of the CuONPs have been studied using spectroscopy of the Raman and X-ray photoelectron. After successful preparation, CuONPs examined their antibacterial, anticancer, and photocatalytic activities. Green-fabricated CuONPs were promising antibacterial candidate against human pathogenic gram-negative bacteria Escherichia coli, Vibrio cholerae, Salmonella typhimurium, Klebsiella pneumoniae, Aeromonas hydrophila, and Pseudomonas aeruginosa. CuONPs were demonstrated the excellent anticancer activity against A549 human lung adenocarcinoma cell line. Furthermore, CuONPs exhibited photocatalytic degradation of azo dyes such as eosin yellow (EY), rhodamine 123 (Rh 123), and methylene blue (MB). Biofabricated CuONPs may therefore be an important biomedical research for the aid of bacterial/cancer diseases and photocatalytic degradation of azo dyes.
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