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Molecular targeting of prodigiosin against anti-inflammatory genes cyclooxygenase-1 and -2. Process Biochem 2023. [DOI: 10.1016/j.procbio.2023.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Jakhrani MA, Tahira A, Bhatti MA, Shah AA, Shaikh NM, Mari RH, Vigolo B, Emo M, Albaqami MD, Nafady A, Ibupoto ZH. A green approach for the preparation of ZnO@C nanocomposite using agave americana plant extract with enhanced photodegradation. NANOTECHNOLOGY 2022; 33:505202. [PMID: 36103847 DOI: 10.1088/1361-6528/ac91d8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 09/13/2022] [Indexed: 06/15/2023]
Abstract
The present study demonstrates the crucial role of agave americana extract in enhancing the optical properties of zinc oxide (ZnO) through thermal treatment method. Various analytical and surface science techniques have been used to identify the morphology, crystalline structure, chemical composition, and optical properties, including scanning electron microscopy, x-ray diffraction, high resolution transmission electron microscopy (HRTEM), x-ray spectroscopy (EDS) and UV-visible spectroscopy techniques. The physical studies revealed the transformation of ZnO nanorods into nanosheets upon addition of an optimized amount of agave americana extract, which induced large amount of amorphous carbon deposited onto ZnO nanostructures as confirmed by HRTEM analysis. The use of increasing amount of americana extract has significantly reduced the average crystallite size of ZnO nanostructures. The resultant hybrid system of C@ZnO has produced a significant effect on the ultraviolet light-assisted photodegradation of malachite green (MG) dye. The photocatalyst dose was fixed at 10 mg for each study whereas the amount of agave americana extract and MG dye concentration are varied. The functionality of hybrid system was greatly enhanced when the amount of agave americana extract increased while dye concentration kept at lower level. Ultimately, almost 100% degradation efficiency was achieved via the prepared hybrid material, revealing combined contribution from synergy, stabilization of ZnO due to excess of carbon together with the high charge separation rate. The obtained results suggest that the driving role of agave americana extract for surface modification of photocatalyst can be considered for other nanostructured photocatalysts.
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Affiliation(s)
| | - Aneela Tahira
- Dr. M.A Kazi Institute of Chemistry University of Sindh Jamshoro, 76080, Sindh, Pakistan
| | - Muhammad Ali Bhatti
- Center for Environmental Sciences University of Sindh Jamshoro, 76080, Sindh, Pakistan
| | - Aqeel Ahmed Shah
- Department of Metallurgical Engineering, NED University of Engineering and Technology, Karachi, Sindh, Pakistan
| | | | - Riaz Hussain Mari
- Institute of Physics, University of Sindh Jamshoro, 76080, Sindh, Pakistan
| | | | - Mélanie Emo
- Université de Lorraine, CNRS, IJL, F-54000 Nancy, France
| | - Munirah D Albaqami
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ayman Nafady
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Zafar Hussain Ibupoto
- Dr. M.A Kazi Institute of Chemistry University of Sindh Jamshoro, 76080, Sindh, Pakistan
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Ariyanta HA, Roji F, Apriandanu DOB. Electrochemical activity of glassy carbon electrode modified with ZnO nanoparticles prepared Via Senna Alata L. leaf extract towards antiretroviral drug. MICRO AND NANO SYSTEMS LETTERS 2022. [DOI: 10.1186/s40486-022-00147-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
AbstractThe phytosynthesis method was used to prepare ZnO nanoparticles (ZnO NPs) via Senna alata L. leaf extract (SALE) by involving alkaloids, which play an essential role as a source of weak bases during the formation reaction of NPs. ZnO NPs on glassy carbon electrodes (GCE/ZnO NP) have been introduced to investigate its electrochemical activity towards the antiretroviral drug, lamivudine (3TC). Several characterization techniques, such as Fourier Transform Infra-Red (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-Ray Spectroscopy (EDS), and Dynamic Light Scattering (DLS) techniques were employed to analyze the properties of GCE/ZnO NPs. As a result, ZnO NPs in spherical shape showed a high purity crystalline hexagonal wurtzite structure with a particle diameter of 40–60 nm. A Cyclic Voltammetry (CV) measurement confirmed that the electrochemical reduction of 3TC on GCE/ZnO NPs exhibited an excellent linear range of 10–300 µM with a detection limit of 1.902 µM, quantitation limit of 6.330 µM, and sensitivity of 0.0278 µA/µM. Thus, this research suggests a facile method for the preparation of material-based ZnO NPs as a promising antiretroviral drug sensors due to their excellent electrochemical properties.
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Hirad AH, Ansari SA, Ali MAE, Egeh MA. Microwave-mediated synthesis of Iron oxide nanoparticles: Photocatalytic, antimicrobial and their cytotoxicity assessment. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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