Effect of silver (Ag) doping on structural, optical and antimicrobial properties of copper oxide (CuO) nanostructures
The present report investigates the effect of Ag doping on the structural, optical, and antimicrobial properties of CuO nanoparticles (NPs). CuO NPs were produced at optimized reaction conditions via hydrothermal synthesis. XRD study reveals a decrease in crystallite size with increased in Ag doping...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | Nano Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2632-959X/acdc41 |
| _version_ | 1797279074533507072 |
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| author | Sagar Vikal Yogendra K Gautam Ashwani Kumar Ajay Kumar Neetu Singh Hempal Singh Beer Pal Singh |
| author_facet | Sagar Vikal Yogendra K Gautam Ashwani Kumar Ajay Kumar Neetu Singh Hempal Singh Beer Pal Singh |
| author_sort | Sagar Vikal |
| collection | DOAJ |
| description | The present report investigates the effect of Ag doping on the structural, optical, and antimicrobial properties of CuO nanoparticles (NPs). CuO NPs were produced at optimized reaction conditions via hydrothermal synthesis. XRD study reveals a decrease in crystallite size with increased in Ag doping (2–6 wt %) in CuO. Ag-doped CuO NPs shows lower band gap values than undoped CuO NPs. FESEM analysis displays pure CuO NPs with spherical pellet-like structures, while Ag-doped CuO NPs have mixed morphologies, i.e., spherical, disc-like, and irregular shapes. EDX spectra confirm the purity of synthesized CuO NPs. Further, the antimicrobial properties of CuO nanostructures were studied against Escherichia coli and Enterococcus faecalis bacteria. CuO NPs functionalized with Ag dopant exhibit significant antibacterial potentials. The antibacterial activity of CuO NPs increased with increasing dopant concentration and in a dose-dependent manner. The gram positive (+ve) E. faecalis is more sensitive to the Ag-doped CuO NPs treatment than a gram negative (–ve) E. coli . Overall this study demonstrates a facile route of synthesizing Ag-doped CuO NPs that can materialize into effective broad-spectrum bactericidal agents. |
| first_indexed | 2024-03-07T16:18:06Z |
| format | Article |
| id | doaj.art-a8624abe7bce4783b471de834f0620e5 |
| institution | Directory Open Access Journal |
| issn | 2632-959X |
| language | English |
| last_indexed | 2024-03-07T16:18:06Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Nano Express |
| spelling | doaj.art-a8624abe7bce4783b471de834f0620e52024-03-04T10:09:21ZengIOP PublishingNano Express2632-959X2023-01-014202500410.1088/2632-959X/acdc41Effect of silver (Ag) doping on structural, optical and antimicrobial properties of copper oxide (CuO) nanostructuresSagar Vikal0Yogendra K Gautam1https://orcid.org/0000-0003-4662-4583Ashwani Kumar2Ajay Kumar3Neetu Singh4Hempal Singh5https://orcid.org/0000-0001-7668-5307Beer Pal Singh6https://orcid.org/0000-0002-1646-8404Smart Materials and Sensor Laboratory, Department of Physics, Ch. Charan Singh University , Meerut, Uttar Pradesh 250004, IndiaSmart Materials and Sensor Laboratory, Department of Physics, Ch. Charan Singh University , Meerut, Uttar Pradesh 250004, IndiaNanoscience Laboratory, Institute Instrumentation Centre, IIT Roorkee, Roorkee 247667, India; Department of Physics, Graphic Era ( Deemed to be University ), Dehradun, Uttarakhand 248002, IndiaDepartment of Biotechnology, Mewar Institute of Management, Ghaziabad, Uttar Pradesh 201012, IndiaDepartment of Biotechnology, Mewar Institute of Management, Ghaziabad, Uttar Pradesh 201012, IndiaDepartment of Physics, IIT Roorkee, Roorkee 247667, IndiaSmart Materials and Sensor Laboratory, Department of Physics, Ch. Charan Singh University , Meerut, Uttar Pradesh 250004, IndiaThe present report investigates the effect of Ag doping on the structural, optical, and antimicrobial properties of CuO nanoparticles (NPs). CuO NPs were produced at optimized reaction conditions via hydrothermal synthesis. XRD study reveals a decrease in crystallite size with increased in Ag doping (2–6 wt %) in CuO. Ag-doped CuO NPs shows lower band gap values than undoped CuO NPs. FESEM analysis displays pure CuO NPs with spherical pellet-like structures, while Ag-doped CuO NPs have mixed morphologies, i.e., spherical, disc-like, and irregular shapes. EDX spectra confirm the purity of synthesized CuO NPs. Further, the antimicrobial properties of CuO nanostructures were studied against Escherichia coli and Enterococcus faecalis bacteria. CuO NPs functionalized with Ag dopant exhibit significant antibacterial potentials. The antibacterial activity of CuO NPs increased with increasing dopant concentration and in a dose-dependent manner. The gram positive (+ve) E. faecalis is more sensitive to the Ag-doped CuO NPs treatment than a gram negative (–ve) E. coli . Overall this study demonstrates a facile route of synthesizing Ag-doped CuO NPs that can materialize into effective broad-spectrum bactericidal agents.https://doi.org/10.1088/2632-959X/acdc41copper oxidesilvernanoparticlesantibacterial activityE. coliE. faecalis |
| spellingShingle | Sagar Vikal Yogendra K Gautam Ashwani Kumar Ajay Kumar Neetu Singh Hempal Singh Beer Pal Singh Effect of silver (Ag) doping on structural, optical and antimicrobial properties of copper oxide (CuO) nanostructures Nano Express copper oxide silver nanoparticles antibacterial activity E. coli E. faecalis |
| title | Effect of silver (Ag) doping on structural, optical and antimicrobial properties of copper oxide (CuO) nanostructures |
| title_full | Effect of silver (Ag) doping on structural, optical and antimicrobial properties of copper oxide (CuO) nanostructures |
| title_fullStr | Effect of silver (Ag) doping on structural, optical and antimicrobial properties of copper oxide (CuO) nanostructures |
| title_full_unstemmed | Effect of silver (Ag) doping on structural, optical and antimicrobial properties of copper oxide (CuO) nanostructures |
| title_short | Effect of silver (Ag) doping on structural, optical and antimicrobial properties of copper oxide (CuO) nanostructures |
| title_sort | effect of silver ag doping on structural optical and antimicrobial properties of copper oxide cuo nanostructures |
| topic | copper oxide silver nanoparticles antibacterial activity E. coli E. faecalis |
| url | https://doi.org/10.1088/2632-959X/acdc41 |
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