Acalypha fruticosa L. leaf extract mediated synthesis of ZnO nanoparticles: Characterization and antimicrobial activities

Vijayakumar, Sekar; Arulmozhi, P.; Kumar, Naveen; Sakthivel, B.; Kumar, Sushil; Praseetha, P.K.

doi:10.1016/j.matpr.2019.06.660

Cited by 34 publications

(15 citation statements)

References 17 publications

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“…e crystalline nature of the synthesized CuO nanoparticle is confirmed by the SAED pattern which is represented by Figure 5(b). e SAED pattern indicates the polycrystalline nature of the prepared CuO NPs [41]. In general, the results obtained from morphological characterizations analysis (SEM and TEM) confirmed that the biosynthesized CuO NPs using Catha edulis leaf extract are agglomerated and spherical in shape which is also similar to the previously reported work [42].…”

Section: Transmission Electron Microscope (Tem) Analysissupporting

confidence: 87%

Synthesis of Copper Oxide Nanoparticles Using Plant Leaf Extract of Catha edulis and Its Antibacterial Activity

Andualem

Sabir

Mohammed

et al. 2020

Journal of Nanotechnology

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Development of green technology is generating interest of researchers towards ecofriendly and low-cost methods for biosynthesis of nanoparticles (NPs). In this study, copper oxide (CuO) NPs were synthesized using a copper nitrate trihydrate precursor and Catha edulis leaves extract as a reducing and capping agent during the synthesis. The biosynthesized CuO NPs were characterized using an X-ray diffractometer (XRD), scanning electron microscopy-energy-dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscope (TEM), Ultraviolet visible spectroscopy (UV-Vis), and Fourier transform infrared (FTIR) spectroscopy. XRD characterization confirmed that the biosynthesized CuO NPs possessed a good crystalline nature which perfectly matched the monoclinic structure of bulk CuO. Furthermore, the results obtained from SEM and TEM showed that the biosynthesized CuO NPs were spherical in shape. EDS characterization of the biosynthesized NPs also indicated that the reaction product was composed of highly pure CuO NPs. Moreover, the antimicrobial activities of different concentrations of CuO NPs synthesized using Catha edulis extract were also tested. Accordingly, the result showed that the highest zone of inhibitions measured were for CuO NPs synthesized using 1 : 2 ratios at 40 mg/ml solution concentration and observed to be 22 ± 0.01 mm, 24 ± 0.02 mm, 32 ± 0.02 mm, and 29 ± 0.03 mm for S. aureus, S. pyogenes, E. coli, and K. pneumonia, respectively.

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Section: Transmission Electron Microscope (Tem) Analysissupporting

confidence: 87%

Synthesis of Copper Oxide Nanoparticles Using Plant Leaf Extract of Catha edulis and Its Antibacterial Activity

Andualem

Sabir

Mohammed

et al. 2020

Journal of Nanotechnology

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“…The final particle of ZnO has reached a larger size as compared to the crystallite size obtained from XRD, which confirms that the ZnO particles were formed from the combination of crystallites (Jensen et al, 2006;Kibasomba et al, 2018). The particle size of ZnO NPs larger than crystallite size was reported by Vijayakumar et al (Vijayakumar et al, 2020) for ZnO NPs prepared by the co-precipitation method. Nonetheless, the particle size of ZnAl 2 O 4 is in good agreement with the crystallite size obtained from the XRD analysis.…”

Section: Nanoparticles Characterizationsupporting

confidence: 65%

“…The sharp peaks reflect the crystallinity of the prepared nanoparticles (El-Fadl et al, 2019). Figure 2 (a) peaks have been indexed to the wurtzite structure of ZnO having a hexagonal phase (Babu et al, 2019;Vijayakumar et al, 2020). Moreover, the absence of extra peaks in the ZnO NPs pattern ensures the high purity of the prepared nanoparticles, which is confirmed by implementing a refinement to the XRD pattern, performed on the MAUD program and shown in Figure 2 (c).…”

Section: Nanoparticles Characterizationmentioning

confidence: 75%

A Comprehensive Study on the Effect of ZnO and ZnAl2O4 Nanoparticles on the Mechanical Properties of Epoxy Coating: Tensile and Hardness

Shmait¹,

Ghouch²,

Boukhari³

et al. 2021

MAS

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ZnO and ZnAl2O4 nanoparticles (NPs) were successfully prepared by the co-precipitation method and characterized by x-ray powder diffraction, transmission electron microscopy, and Fourier transform infrared spectroscopy. The prepared NPs were incorporated into epoxy (EP) coating with mass ratios 200  800 mg/kg of ZnO NPs/EP and ZnAl2O4 NPs /EP. The prepared coatings were characterized by scanning electron microscopy and Fourier transform infrared spectroscopy, and their mechanical properties were investigated, at room temperature, after 5, 10, 15, and 20 days of preparation. Tensile tests showed an improvement in the tensile properties, with the best improvement in ultimate tensile strength (93.2%) for 800 mg/kg ZnAl2O4 NPs/EP coating after 15 days of preparation. The ZnO NPs/EP and ZnAl2O4 NPs/EP coatings exhibited noticeable sensitivity to the stretching rate. Vickers microhardness (Hv) investigations showed normal indentation size effect behavior for all the samples. The best improvement in Hv was attained after 5 days of preparation, for all coatings, with the best improvement (9.15%) for 700 mg/kg ZnO NPs/EP.

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“…2 Recently, scientists have recognized the importance of zinc oxide (ZnO) due to its plentiful applications and unique properties. 3–6 The nanoparticles containing ZnO have an important role in avoidance of the aquatic and dependent ecosystem imbalances arising from organic contaminants such as dye fragments. ZnONPs synthesized by Artocarpus heterophyllus leaves were effective in degradation of Congored dye.…”

Section: Introductionmentioning

confidence: 99%

Antiviral Activity of Zinc Oxide Nanoparticles Mediated by Plumbago indica L. Extract Against Herpes Simplex Virus Type 1 (HSV-1)

Melk¹,

El‐Hawary²,

Melek³

et al. 2021

IJN

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Introduction Plumbago indica L. is considered a valuable source in the Plumbaginaceae family for various types of active compound such as alkaloids, phenolics and saponins. To promote the usage of P. indica in the bionanotechnology field, zinc oxide nanoparticles (ZnONPs) were biosynthesized by using its alcoholic extract. The inhibitory effects of ZnONPs and the plant extract were also evaluated against HSV-1. Methods ZnONPs were described by the following techniques, UV–visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), zeta potential, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and x-ray diffraction (XRD). The phenolic and flavonoid contents of P. indica extract, which are accountable for bioreduction, formation and stabilization of the nanoparticles, were analyzed by HPLC technique. The antiviral assessment was implemented on both agents by using Vero cell lines. Results DLS revealed that the average size of ZnONPs was 32.58 ± 7.98 nm and the zeta potential was –20.8 mV. The observation of TEM analysis revealed that the particle size of ZnONPs varied from 2.56 to 8.83 nm. The XRD analysis verified the existence of pure crystals of hexagonal shapes of nanoparticles of ZnO with a main average size of 35.28 nm that is approximating to the values of particle size acquired by SEM analysis (19.64 and 23.21 nm). The HPLC analysis of P. indica ethanolic extract showed that gallic acid, chlorogenic acid and rutin were the major compounds, with concentrations equal to 8203.99, 2965.95 and 1144.99 µg/g, respectively. Regarding the antiviral assessment, the synthesized uncalcinated ZnONPs were found to exhibit a promising activity against HSV-1, with CC 50 and IC 50 values equal to 43.96 ± 1.39 and 23.17 ± 2.29 µg/mL, respectively. Conclusion The green synthesized ZnONPs are considered promising adjuvants to enhance the efficacy of HSV-1 drugs.

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Acalypha fruticosa L. leaf extract mediated synthesis of ZnO nanoparticles: Characterization and antimicrobial activities

Cited by 34 publications

References 17 publications

Synthesis of Copper Oxide Nanoparticles Using Plant Leaf Extract of Catha edulis and Its Antibacterial Activity

Synthesis of Copper Oxide Nanoparticles Using Plant Leaf Extract of Catha edulis and Its Antibacterial Activity

A Comprehensive Study on the Effect of ZnO and ZnAl2O4 Nanoparticles on the Mechanical Properties of Epoxy Coating: Tensile and Hardness

Antiviral Activity of Zinc Oxide Nanoparticles Mediated by Plumbago indica L. Extract Against Herpes Simplex Virus Type 1 (HSV-1)

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