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Mucor sp. (Fungal Philospheric) of Gambir (Uncaria) Leaf surface as a biosynthetic Mg doped ZnO Nanorods media for antibacterial applications.
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- Author(s): Rilda, Yetria1 (AUTHOR) ; Putra, Eka Satria1 (AUTHOR); Arief, Syukri1 (AUTHOR); Agustien, Anthoni2 (AUTHOR); Pardi, Hilfi3 (AUTHOR); Sofyan, Nofrijon4,5 (AUTHOR)
- Source:
Journal of Dispersion Science & Technology. 2024, Vol. 45 Issue 12, p2291-2301. 11p.- Subject Terms:
- Source:
- Additional Information
- Abstract: The antibacterial activity of ZnO nanorods (NRs) has been tested for its ability to inhibit the cells of pathogenic bacteria such as Staphylococcus aureus and Salmonella sp. This study aims to increase the antibacterial activity through modification of Mg2+ doped ZnO morphology under sol-gel-hydrothermal synthesis conditions at pH 10. The mechanism of biosynthetic reactions was using enzymatic grooves of the cell phyllosphere isolate of gambir (Uncaria) leaves as a reducing compound and capping agent. The X-ray diffraction (XRD) analysis showed that ZnO and Mg doped ZnO products were wurtzite structures based on intensities 2θ = 31.78°, 34.43°, 36.27° correlated to hkl (100), (002), (101), respectively (ICSD standard −157724). Mg doped ZnO has the same intensity as the control and no impurity intensity was obtained. Scanning electron microscope (SEM) analysis showed nanospheric morphological patterns, while nanorods have a more dominant size distribution in the range of 125–175 nm. Infrared (FT-IR) analysis at wave numbers 401–584 cm−1 showed a Zn-O stretch. Furthermore, powder ultraviolet (UV-DRS) analysis indicated optical properties based on the uptake on blue-shift regions with λmax ≤ 400 nm and had a change in the bandgap (Eg) of 3.37 eV after conversion using Tauc-plot. The results also showed that the greater the concentration of Mg+2 ions, the smaller the bandgap will be, i.e., of 3.13, eV, 3.10, eV, 3.11 eV, and 3.12 eV for 0, 1, 2, and 3%, respectively. On the antibacterial activity against bacteria Gram (+) Staphylococcus aureus and Gram (–) Salmonella typhi., the largest inhibitory zone was found on Gram (–) bacteria at 24 mm. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Journal of Dispersion Science & Technology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Abstract:
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