Green synthesis of zinc oxide nanoparticles using Pisonia Alba leaf extract and its antibacterial activity

MuthuKathija, M.; Badhusha, M. Sheik Muhideen; Rama, V.

doi:10.1016/j.apsadv.2023.100400

Cited by 84 publications

(9 citation statements)

References 42 publications

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“…The Zn 2p high-resolution spectra showed a pair of predominant peaks at approximately 1021 and 1044 eV binding energies representing Zn 2p 3/2 and Zn 2p 1/2 , respectively, which is indicative of the presence of Zn 2+ oxidation states in the tMOF. The 23 eV binding energy gap between the two peaks, which indicates a high spin splitting energy separation of Zn 2p, is consistent with a Zn XPS report . The XPS spectra therefore substantiated the synthesis of the trimetallic Ni-Co-Zn MOF where Ni, Co, and Zn are coordinated by the imidazole linker into a heterogeneous hybrid MOF.…”

Section: Resultssupporting

confidence: 87%

“…The 23 eV binding energy gap between the two peaks, which indicates a high spin splitting energy separation of Zn 2p, is consistent with a Zn XPS report. 39 The XPS spectra therefore substantiated the synthesis of the trimetallic Ni-Co-Zn MOF where Ni, Co, and Zn are coordinated by the imidazole linker into a heterogeneous hybrid MOF.…”

Section: ■ Results and Discussionmentioning

confidence: 73%

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Alloyed Trimetallic Nanocomposite as an Efficient and Recyclable Solid Matrix for Ideonella sakaiensis Lipase Immobilization

Addai,

Wu,

Lin

et al. 2024

Langmuir

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In this work, a trimetallic (Ni/Co/Zn) organic framework (tMOF), synthesized by a solvothermal method, was calcinated at 400 and 600 °C and the final products were used as a support for lipase immobilization. The material annealed at 400 °C (Ni-Co-Zn@400) had an improved surface area (66.01 m2/g) and pore volume (0.194 cm3/g), which showed the highest enzyme loading capacity (301 mg/g) with a specific activity of 0.196 U/mg, and could protect the enzyme against thermal denaturation at 65 °C. The optimal pH and temperature for the lipase were 8.0 and 45 °C but could tolerate pH levels 7.0–8.0 and temperatures 40–60 °C. Moreover, the immobilized enzyme (Ni-Co-Zn@Lipase, Ni-Co-Zn@400@Lipase, or Ni-Co-Zn@600@Lipase) could be recovered and reused for over seven cycles maintaining 80, 90, and 11% of its original activity and maintained a residual activity >90% after 40 storage days. The remarkable thermostability and storage stability of the immobilized lipase suggest that the rigid structure of the support acted as a protective shield against denaturation, while the improved pH tolerance toward the alkaline range indicates a shift in the ionization state attributed to unequal partitioning of hydroxyl and hydrogen ions within the microenvironment of the active site, suggesting that acidic residues may have been involved in forming an enzyme–support bond. The high enzyme loading capacity, specific activity, encouraging stability, and high recoverability of the tMOF@Lipase indicate that a multimetallic MOF could be a better platform for efficient enzyme immobilization.

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Section: Resultssupporting

confidence: 87%

Section: ■ Results and Discussionmentioning

confidence: 73%

Alloyed Trimetallic Nanocomposite as an Efficient and Recyclable Solid Matrix for Ideonella sakaiensis Lipase Immobilization

Addai,

Wu,

Lin

et al. 2024

Langmuir

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“…Moreover, Gharpure et al [ 70 ] illustrated that leaf extract of Neolamarckia cadamba can be used for the green biosynthesis of ZnONPs and also found that these nanoparticles have antibacterial activity against B. subitils, S. aureus, P. aeruginosa, and E. coli. Furthermore, Pisonia alba leaf extract was used for ZnONPs biosynthesis and exhibited potential antibacterial activity toward Gram-negative and Gram-positive bacteria [ 71 ]. Additionally, Chaudhary et al [ 72 ] succeeded in the biosynthesis of ZnONPs using Aloe vera peel extract and found ZnONPs have promising antimicrobial activity against E. coli (MTCC-41) and A. niger (MTCC-404).…”

Section: Resultsmentioning

confidence: 99%

Green Biosynthesis of Zinc Oxide Nanoparticles Using Pluchea indica Leaf Extract: Antimicrobial and Photocatalytic Activities

et al. 2023

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Nanotechnology is playing a critical role in several essential technologies with nanoscale structures (nanoparticles) in areas of the environment and biomedicine. In this work, the leaf extract of Pluchea indica was utilized to biosynthesize zinc oxide nanoparticles (ZnONPs) for the first time and evaluated for antimicrobial and photocatalytic activities. Different experimental methods were used to characterize the biosynthesized ZnONPs. The biosynthesized ZnONPs showed maximum Ultraviolet–visible spectroscopy (UV-vis) absorbance at a wavelength of 360 nm. The X-Ray diffraction (XRD) pattern of the ZnONPs exhibits seven strong reflection peaks, and the average particle size was 21.9 nm. Fourier-transform infrared spectroscopy (FT-IR) spectrum analysis reveals the presence of functional groups that help in biofabrication. The existence of Zn and O was confirmed by the Energy-dispersive X-ray (EDX) spectrum and the morphology by SEM images. Antimicrobial studies showed that the biosynthesized ZnONPs have antimicrobial efficacy against Escherichia coli, Pseudomonas aeruginosa, Enterococcus faecalis, Bacillus subtilis, Staphylococcus aureus, Candida albicans and Cryptococcus neoformans where inhibition zones at concentration 1000 µg/mL were 21.83 ± 0.76, 13.0 ± 1.1, 14.9 ± 0.85, 24.26 ± 1.1, 17.0 ± 1.0, 20.67 ± 0.57 and 19.0 ± 1.0 mm respectively. Under both dark and sunlight irradiation, the photocatalytic activity of ZnONPs was evaluated towards the degradation of the thiazine dye (methylene blue-MB). Approximately 95% of the MB dye was broken down at pH 8 after 150 min of sunlight exposure. The aforementioned results, therefore, suggest that ZnONPs synthesized by implementing environmentally friendly techniques can be employed for a variety of environmental and biomedical applications.

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“…According to the SEM results, the green synthesized ZnO NPs seem to be spherical [46] in shape, and the size ranges from 20 to 50 nm. The SEM images of ZnO NPs are presented in [Figure 4A-C], where the particle agglomeration takes place due to a change in pH and a decrease in surface energy [47][48][49][50][51][52][53][54]. The EDAX spectrum of the ZnO NPs verifies the presence of zinc and oxygen in proper ratios and impurity-free nanoparticles.…”

Section: Sem Analysismentioning

confidence: 99%

A Study on the Antibacterial, Antispasmodic, Antipyretic, and Anti-Inflammatory Activity of ZnO Nanoparticles Using Leaf Extract from Jasminum sambac (L. Aiton)

Sugitha,

Venkatesan,

Latha

et al. 2024

Molecules

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The green synthesis of zinc oxide nanoparticles (ZnO NPs) using plants has grown in significance in recent years. ZnO NPs were synthesized in this work via a chemical precipitation method with Jasminum sambac (JS) leaf extract serving as a capping agent. These NPs were characterized using UV-vis spectroscopy, FT-IR, XRD, SEM, TEM, TGA, and DTA. The results from UV-vis and FT-IR confirmed the band gap energies (3.37 eV and 3.50 eV) and the presence of the following functional groups: CN, OH, C=O, and NH. A spherical structure and an average grain size of 26 nm were confirmed via XRD. The size and surface morphology of the ZnO NPs were confirmed through the use of SEM analysis. According to the TEM images, the ZnO NPs had an average mean size of 26 nm and were spherical in shape. The TGA curve indicated that the weight loss starts at 100 °C, rising to 900 °C, as a result of the evaporation of water molecules. An exothermic peak was seen during the DTA analysis at 480 °C. Effective antibacterial activity was found at 7.32 ± 0.44 mm in Gram-positive bacteria (S. aureus) and at 15.54 ± 0.031 mm in Gram-negative (E. coli) bacteria against the ZnO NPs. Antispasmodic activity: the 0.3 mL/mL sample solution demonstrated significant reductions in stimulant effects induced by histamine (at a concentration of 1 µg/mL) by (78.19%), acetylcholine (at a concentration of 1 µM) by (67.57%), and nicotine (at a concentration of 2 µg/mL) by (84.35%). The antipyretic activity was identified using the specific Shodhan vidhi method, and their anti-inflammatory properties were effectively evaluated with a denaturation test. A 0.3 mL/mL sample solution demonstrated significant reductions in stimulant effects induced by histamine (at a concentration of 1 µg/mL) by 78.19%, acetylcholine (at a concentration of 1 µM) by 67.57%, and nicotine (at a concentration of 2 µg/mL) by 84.35%. These results underscore the sample solution’s potential as an effective therapeutic agent, showcasing its notable antispasmodic activity. Among the administered doses, the 150 mg/kg sample dose exhibited the most potent antipyretic effects. The anti-inflammatory activity of the synthesized NPs showed a remarkable inhibition percentage of (97.14 ± 0.005) at higher concentrations (250 µg/mL). Furthermore, a cytotoxic effect was noted when the biologically synthesized ZnO NPs were introduced to treated cells.

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Green synthesis of zinc oxide nanoparticles using Pisonia Alba leaf extract and its antibacterial activity

Cited by 84 publications

References 42 publications

Alloyed Trimetallic Nanocomposite as an Efficient and Recyclable Solid Matrix for Ideonella sakaiensis Lipase Immobilization

Alloyed Trimetallic Nanocomposite as an Efficient and Recyclable Solid Matrix for Ideonella sakaiensis Lipase Immobilization

Green Biosynthesis of Zinc Oxide Nanoparticles Using Pluchea indica Leaf Extract: Antimicrobial and Photocatalytic Activities

A Study on the Antibacterial, Antispasmodic, Antipyretic, and Anti-Inflammatory Activity of ZnO Nanoparticles Using Leaf Extract from Jasminum sambac (L. Aiton)

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