Lawsonia inermis plant-based cobalt oxide nanoparticles: Synthesis, characterization and their biological studies
In the current study synthesized Cobalt oxide nanoparticles (Co3O4 NPs) using Lawsonia inermis plant extract as fuel. The synthesized Co3O4 NPs were characterized using UV–visible spectroscopy, DLS, FT-IR, XRD, FESEM, and EDX analysis. The synthesized Co3O4 NPs were confirmed by the XRD analysis and...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Results in Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715624000638 |
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| author | Lalitha Ammadu Kolahalam K.R.S. Prasad Panchangam Murali Krishna N. Supraja |
| author_facet | Lalitha Ammadu Kolahalam K.R.S. Prasad Panchangam Murali Krishna N. Supraja |
| author_sort | Lalitha Ammadu Kolahalam |
| collection | DOAJ |
| description | In the current study synthesized Cobalt oxide nanoparticles (Co3O4 NPs) using Lawsonia inermis plant extract as fuel. The synthesized Co3O4 NPs were characterized using UV–visible spectroscopy, DLS, FT-IR, XRD, FESEM, and EDX analysis. The synthesized Co3O4 NPs were confirmed by the XRD analysis and their average size was determined using DLS and FESEM analysis. The average size of the cobalt oxide nanoparticles obtained from FESEM analysis was found to be around 98 nm and strong signals of cobalt were captured in EDX images. The synthesized Co3O4 NPs were tested on bacterial and fungal strains of three concentrations viz 50, 100 and 170 ppm. An increase in the concentration of Co3O4 NPs shows potent antibacterial and antifungal activities. The higher concentration (170 ppm) showed good antimicrobial activity on all strains of bacteria and fungi than the lower concentrations (50 and 100 ppm) of Co3O4 NPs. The observed zone of inhibition values against all bacteria and fungi ranged from 0.3 to 3.0 mm and 20 ± 0.42 mm to 0.3 to 2.9 mm, respectively. Among them, Staphylococcus and Streptococcus aureus showed more zones of inhibition at 170 ppm concentration. Meyerozyma guilliermondii fungal strain showed more zone of inhibition at 170 ppm concentration. |
| first_indexed | 2024-03-07T22:01:07Z |
| format | Article |
| id | doaj.art-5ed821b7728c49569194b1c1bc434389 |
| institution | Directory Open Access Journal |
| issn | 2211-7156 |
| language | English |
| last_indexed | 2024-03-07T22:01:07Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj.art-5ed821b7728c49569194b1c1bc4343892024-02-24T04:54:49ZengElsevierResults in Chemistry2211-71562024-01-017101367Lawsonia inermis plant-based cobalt oxide nanoparticles: Synthesis, characterization and their biological studiesLalitha Ammadu Kolahalam0K.R.S. Prasad1Panchangam Murali Krishna2N. Supraja3Department of Science and Humanities (Chemistry), NRI Institute of Technology, Pothavarappadu, Agiripalli 521212, Krishna (Dt), Andhra Pradesh, India; Department of Chemistry, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur 522502, Andhra Pradesh, IndiaDepartment of Chemistry, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur 522502, Andhra Pradesh, India; Corresponding authors.Department of Chemistry, M S Ramaiah Institute of Technology (Autonomous Institute, Affiliated to VTU), Bangalore 560054, Karnataka, India; Corresponding authors.Acharya N G Ranga Agricultural University, Nanotechnology Laboratory, RARS, Tirupati 517502, Andhra Pradesh, IndiaIn the current study synthesized Cobalt oxide nanoparticles (Co3O4 NPs) using Lawsonia inermis plant extract as fuel. The synthesized Co3O4 NPs were characterized using UV–visible spectroscopy, DLS, FT-IR, XRD, FESEM, and EDX analysis. The synthesized Co3O4 NPs were confirmed by the XRD analysis and their average size was determined using DLS and FESEM analysis. The average size of the cobalt oxide nanoparticles obtained from FESEM analysis was found to be around 98 nm and strong signals of cobalt were captured in EDX images. The synthesized Co3O4 NPs were tested on bacterial and fungal strains of three concentrations viz 50, 100 and 170 ppm. An increase in the concentration of Co3O4 NPs shows potent antibacterial and antifungal activities. The higher concentration (170 ppm) showed good antimicrobial activity on all strains of bacteria and fungi than the lower concentrations (50 and 100 ppm) of Co3O4 NPs. The observed zone of inhibition values against all bacteria and fungi ranged from 0.3 to 3.0 mm and 20 ± 0.42 mm to 0.3 to 2.9 mm, respectively. Among them, Staphylococcus and Streptococcus aureus showed more zones of inhibition at 170 ppm concentration. Meyerozyma guilliermondii fungal strain showed more zone of inhibition at 170 ppm concentration.http://www.sciencedirect.com/science/article/pii/S2211715624000638Lawsonia inermis plant extractCobalt oxide nanoparticlesLeavesBark extractAntibacterial activity |
| spellingShingle | Lalitha Ammadu Kolahalam K.R.S. Prasad Panchangam Murali Krishna N. Supraja Lawsonia inermis plant-based cobalt oxide nanoparticles: Synthesis, characterization and their biological studies Results in Chemistry Lawsonia inermis plant extract Cobalt oxide nanoparticles Leaves Bark extract Antibacterial activity |
| title | Lawsonia inermis plant-based cobalt oxide nanoparticles: Synthesis, characterization and their biological studies |
| title_full | Lawsonia inermis plant-based cobalt oxide nanoparticles: Synthesis, characterization and their biological studies |
| title_fullStr | Lawsonia inermis plant-based cobalt oxide nanoparticles: Synthesis, characterization and their biological studies |
| title_full_unstemmed | Lawsonia inermis plant-based cobalt oxide nanoparticles: Synthesis, characterization and their biological studies |
| title_short | Lawsonia inermis plant-based cobalt oxide nanoparticles: Synthesis, characterization and their biological studies |
| title_sort | lawsonia inermis plant based cobalt oxide nanoparticles synthesis characterization and their biological studies |
| topic | Lawsonia inermis plant extract Cobalt oxide nanoparticles Leaves Bark extract Antibacterial activity |
| url | http://www.sciencedirect.com/science/article/pii/S2211715624000638 |
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