Novel nanocomposite polylactic acid films with Curcumin-ZnO: structural, thermal, optical and antibacterial properties
In this work, biodegradable polylactic acid (PLA)/Curcumin/ZnO nanocomposite films were prepared by using the film casting method at room temperature. Zinc Oxide nanoparticles (NPs) were prepared in a green method using Bambusa arundinacea leaves extract. Scanning electron microscopy results showed...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-01-01
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| Series: | Current Research in Green and Sustainable Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666086522000741 |
| _version_ | 1798006392703942656 |
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| author | A. Akshaykranth N. Jayarambabu Ashish kumar T. Venkatappa Rao R. Rakesh Kumar L. Srinivasa Rao |
| author_facet | A. Akshaykranth N. Jayarambabu Ashish kumar T. Venkatappa Rao R. Rakesh Kumar L. Srinivasa Rao |
| author_sort | A. Akshaykranth |
| collection | DOAJ |
| description | In this work, biodegradable polylactic acid (PLA)/Curcumin/ZnO nanocomposite films were prepared by using the film casting method at room temperature. Zinc Oxide nanoparticles (NPs) were prepared in a green method using Bambusa arundinacea leaves extract. Scanning electron microscopy results showed that curcumin and ZnO NPs were uniformly dispersed in the PLA matrix. X-ray diffraction analysis showed that addition of curcumin converts semi-crystalline PLA into amorphous. The photoluminescence spectra of PLA/Curcumin showed a broad emission band in green color. After adding ZnO NPs, the spectra showed a redshift in the emission peak with a gradual decrease in the intensity with increasing weight percentage. The energy band gap values are calculated by Tauc's plot for all PLA nanocomposite films. The antibacterial activity was not observed in pure PLA film whereas the PLA nanocomposite films exhibited antibacterial activity against both gram -ve and gram + ve bacteria. The antibacterial activity was increased by incorporating the curcumin and ZnO NPs concentrations. The present study provides a simple procedure to prepare large-area PLA nanocomposite films with good antibacterial activity. |
| first_indexed | 2024-04-11T12:55:14Z |
| format | Article |
| id | doaj.art-6a40bbb8694b4d04a6614d9e65fd13d3 |
| institution | Directory Open Access Journal |
| issn | 2666-0865 |
| language | English |
| last_indexed | 2024-04-11T12:55:14Z |
| publishDate | 2022-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Current Research in Green and Sustainable Chemistry |
| spelling | doaj.art-6a40bbb8694b4d04a6614d9e65fd13d32022-12-22T04:23:06ZengElsevierCurrent Research in Green and Sustainable Chemistry2666-08652022-01-015100332Novel nanocomposite polylactic acid films with Curcumin-ZnO: structural, thermal, optical and antibacterial propertiesA. Akshaykranth0N. Jayarambabu1Ashish kumar2T. Venkatappa Rao3R. Rakesh Kumar4L. Srinivasa Rao5Polymer Physics Lab, Department of Physics, National Institute of Technology, Warangal, 506004, IndiaPolymer Physics Lab, Department of Physics, National Institute of Technology, Warangal, 506004, IndiaDepartment of Physics, Indian Institute of Technology, Roorkee, 247667, Uttarakhand, IndiaPolymer Physics Lab, Department of Physics, National Institute of Technology, Warangal, 506004, India; Corresponding author.Polymer Physics Lab, Department of Physics, National Institute of Technology, Warangal, 506004, IndiaCentre for Nanoscience and Technology, Department of Physics, VNR VJIT, Hyderabad, 500090, IndiaIn this work, biodegradable polylactic acid (PLA)/Curcumin/ZnO nanocomposite films were prepared by using the film casting method at room temperature. Zinc Oxide nanoparticles (NPs) were prepared in a green method using Bambusa arundinacea leaves extract. Scanning electron microscopy results showed that curcumin and ZnO NPs were uniformly dispersed in the PLA matrix. X-ray diffraction analysis showed that addition of curcumin converts semi-crystalline PLA into amorphous. The photoluminescence spectra of PLA/Curcumin showed a broad emission band in green color. After adding ZnO NPs, the spectra showed a redshift in the emission peak with a gradual decrease in the intensity with increasing weight percentage. The energy band gap values are calculated by Tauc's plot for all PLA nanocomposite films. The antibacterial activity was not observed in pure PLA film whereas the PLA nanocomposite films exhibited antibacterial activity against both gram -ve and gram + ve bacteria. The antibacterial activity was increased by incorporating the curcumin and ZnO NPs concentrations. The present study provides a simple procedure to prepare large-area PLA nanocomposite films with good antibacterial activity.http://www.sciencedirect.com/science/article/pii/S2666086522000741Poly lactic acidCurcuminZnO NanoparticlesPhotoluminescenceAntibacterial activity |
| spellingShingle | A. Akshaykranth N. Jayarambabu Ashish kumar T. Venkatappa Rao R. Rakesh Kumar L. Srinivasa Rao Novel nanocomposite polylactic acid films with Curcumin-ZnO: structural, thermal, optical and antibacterial properties Current Research in Green and Sustainable Chemistry Poly lactic acid Curcumin ZnO Nanoparticles Photoluminescence Antibacterial activity |
| title | Novel nanocomposite polylactic acid films with Curcumin-ZnO: structural, thermal, optical and antibacterial properties |
| title_full | Novel nanocomposite polylactic acid films with Curcumin-ZnO: structural, thermal, optical and antibacterial properties |
| title_fullStr | Novel nanocomposite polylactic acid films with Curcumin-ZnO: structural, thermal, optical and antibacterial properties |
| title_full_unstemmed | Novel nanocomposite polylactic acid films with Curcumin-ZnO: structural, thermal, optical and antibacterial properties |
| title_short | Novel nanocomposite polylactic acid films with Curcumin-ZnO: structural, thermal, optical and antibacterial properties |
| title_sort | novel nanocomposite polylactic acid films with curcumin zno structural thermal optical and antibacterial properties |
| topic | Poly lactic acid Curcumin ZnO Nanoparticles Photoluminescence Antibacterial activity |
| url | http://www.sciencedirect.com/science/article/pii/S2666086522000741 |
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