| Autor: |
Parmar, Mrinalini, Sanyal, Mallika |
| Zdroj: |
Particuology; April 2024, Vol. 87 Issue: 1 p87-98, 12p |
| Abstrakt: |
In this study, biosynthesis of gold nanoparticles (Au NPs) using aqueous extract of fresh leaves of Ricinus cummunisplant is reported without the use of any synthetic chemical in the reaction process. The prepared NPs are mostly spherical in shape with some particles having triangular or hexagonal structures. The average size of the particles as calculated using TEM data is 18 nm. The biosynthesised Au NPs were studied for their application in remediation of Congo Red, Methylene Blue, Reactive Red 120 and Rhodamine B dyes present in industrial effluents. The degradation of dyes was confirmed spectrophotometrically using UV–Vis Spectrophotometer. Reactive Red 120 and Congo red dyes were most effectively reduced with 88% degradation. The Au NPs were further studied for their potential as an effective antifungal agent against fungal strains namely Candida albicansand Aspergillus fumigatusand antibacterial properties against Bacillus subtilis(Gram +ve) and Pseudomonas aeruginosa(Gram −ve) bacterial strains. The MIC values being 7.8 and 15.6 (μg/mL) for Bacillus subtilisand Pseudomonas aeruginosarespectively. |
| Databáze: |
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