Facile Synthesis and Characterization of Zinc Oxide Nanoparticles Using Psidium guajava leaf Extract and Their Antibacterial Applications

Ramya, V.; Kalaiselvi, V.; Kannan, S.; Shkir, Mohd.; Ghramh, Hamed A.; Ahmad, Zubair; Nithiya, P.; Vidhya, N.

doi:10.1007/s13369-021-05717-1

Cited by 25 publications

(10 citation statements)

References 59 publications

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“…3B. The detected peak at 605, which corresponds to the stretching vibration of ZnO NPs, identified and validated the biosynthetic ZnO NPs 18,24,58 . Furthermore, the detected signal at 1058 is referred to C-O-C stretching mode 59 as an aliphatic ether or aldehyde, which may act as a stabilizing agent.…”

Section: Resultsmentioning

confidence: 54%

Scaling-up strategies for controllable biosynthetic ZnO NPs using cell free-extract of endophytic Streptomyces albus: characterization, statistical optimization, and biomedical activities evaluation

EL-Moslamy

Elnouby

Rezk

et al. 2023

Sci Rep

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In this study, we identified a suitable precursor and good cellular compartmentalization for enhancing bioactive metabolites to produce biosynthetic zinc oxide nanoparticles (ZnO NPs). An effective medium for cultivating endophytic Streptomycesalbus strain E56 was selected using several optimized approaches in order to maximize the yield of biosynthetic ZnO NPs. The highest biosynthetic ZnO NPs yield (4.63 g/L) was obtained when pipetting the mixed cell-free fractions with 100 mM of zinc sulfate as a precursor. The generation of biosynthetic ZnO NPs was quickly verified using a colored solution (white color) and UV–Visible spectroscopy (maximum peak, at 320 nm). On a small scale, the Taguchi method was applied to improve the culture medium for culturing the strain E56. As a result, its cell-dry weight was 3.85 times that of the control condition. And then the biosynthesis of ZnO NPs (7.59 g/L) was increased by 1.6 times. Furthermore, by using the Plackett–Burman design to improve the utilized biogenesis pathway, the biosynthesis of ZnO NPs (18.76 g/L) was increased by 4.3 times. To find the best growth production line, we used batch and fed batch fermentation modes to gradually scale up biomass output. All kinetics of studied cell growth were evaluated during fed-batch fermentation as follows: biomass yield was 271.45 g/L, yield coefficient was 94.25 g/g, and ZnO NPs yield was 345.32 g/L. In vitro, the effects of various dosages of the controllable biosynthetic ZnO NPs as antimicrobial and anticancer agents were also investigated. The treatments with controllable biosynthetic ZnO NPs had a significant impact on all the examined multidrug-resistant human pathogens as well as cancer cells.

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Section: Resultsmentioning

confidence: 54%

Scaling-up strategies for controllable biosynthetic ZnO NPs using cell free-extract of endophytic Streptomyces albus: characterization, statistical optimization, and biomedical activities evaluation

EL-Moslamy

Elnouby

Rezk

et al. 2023

Sci Rep

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“…The zinc oxide nanoparticles were synthesized using a green approach as reported by Ramya et al 19 . Figure 1 illustrates a flow chart for the stepwise synthesis of nano ZnO.…”

Section: Materials and Methodologymentioning

confidence: 99%

“…The United States Food and Drug Administration has listed ZnO as a generally recognized as safe (GRAS) metal oxide 18 . Zinc oxide possesses high excitation energy of 60 mev, which allows it to endure higher temperatures and exhibit higher catalytic activity 19 . Zinc oxide nanomaterial can be synthesized using physical and chemical methods.…”

Section: Introductionmentioning

confidence: 99%

“…18 Zinc oxide possesses high excitation energy of 60 mev, which allows it to endure higher temperatures and exhibit higher catalytic activity. 19 Zinc oxide nanomaterial can be synthesized using physical and chemical methods. There are several drawbacks to the physical methods, such as the need to use expensive machines and the need for a large amount of space to set up the machines, the need for high working temperatures and pressures, so ZnO NPs are synthesized using the solution method -that is, wet chemical reduction of zinc precursors, mostly zinc salts.…”

Section: Introductionmentioning

confidence: 99%

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Effect of green synthesized zinc oxide nanoadditives and rice bran oil biodiesel blend on performance and combustion characteristics of a variable compression ratio diesel engine: an experimental study

Koirala

Sah

Dhakal

et al. 2023

Biofuels Bioprod Bioref

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The aim of this research was to investigate experimentally the performance and combustion characteristics of a four‐stroke, single‐cylinder, water‐cooled variable compression ratio diesel engine using rice bran oil biodiesel blends with zinc oxide nanoparticles. Rice bran oil biodiesel was prepared using a transesterification reaction with a 6:1 methanol‐oil molar ratio and 1% w/w potassium hydroxide as catalyst. Zinc oxide nanoparticles were synthesized using a green method incorporating Psidium guajava leaf extract as a capping agent to reduce precursor use and to reduce the toxicity of the nanomaterial. The synthesized zinc oxide nanoparticles were characterized by using X‐ray diffraction and Fourier‐transform infrared spectroscopy to confirm the formation of highly crystalline pure zinc oxide nanoparticles with a hexagonal wurtzite crystal structure with an average diameter of 20.963 nm. Rice bran‐oil biodiesel‐diesel blend was prepared by volumetrically mixing 20% biodiesel and 80% mineral diesel and was considered as a base fuel for comparison. Zinc oxide nanoparticles were diffused in the base fuel at dosage levels of 25, 50, and 75 ppm, with the aid of ultrasonication. Measurement of the major physicochemical properties of test fuels showed an increase in the cetane number and calorific value and a reduction in viscosity with an increase in the zinc oxide concentration. The overall properties of all the test fuels were found to be similar in comparison with commercial diesel. An experimental engine test was carried out under different loading conditions with a constant speed of 1500 RPM and two different compression ratios – that is, 17.5:1 and 15:1. Among all the test fuels at both compression ratios, engine performance and combustion properties improved with an increase in the zinc oxide concentration. Test fuel with 75 ppm of zinc oxide additive at 17.5 compression ratio resulted in an overall improvement at full load: brake thermal efficiency increased by 2.45%, brake specific fuel consumption reduced by 5.45%, cylinder peak pressure increased by 3.27% and net heat release increased by 10.32% in comparison with base fuel.

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“…The large aspect ratio of nanoparticles is one of many explanations for this [ 2 ]. In the field of biomedicine, nanoparticles of metal oxides (MONPs) have been introduced, specifically for antibacterial, anticancer, gene transport, biosensing, and cell imaging applications [ 3 ]. In recent decades, the significance of these nanoparticles has increased due to their exceptional chemical and thermal stability.…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis and Anti‐inflammatory Activity of Zinc Oxide Nanoparticles Using Leaf Extract of Senecio chrysanthemoides

Zahoor

Sheraz

Shams

et al. 2023

BioMed Research International

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Nanotechnology has recently appeared as an important study subject in modern material sciences. Greener synthesis of nanoparticles has gained the attention of many scientists because of its integral characteristics such as effectiveness, eco-friendly, and low cost. In the present study by following the green synthesis approach, zinc oxide nanoparticles (ZnO NPs) were formed for the very first time by using Senecio chrysanthemoides leaf extract as a reducing agent. The UV-Vis spectrophotometer was used to study the synthesized ZnO NPs, and the specific peak was found to be at 349 nm. The characteristic Fourier transform infrared (FTIR) peak was found to be at 449 cm-1 which displays the peak of ZnO molecules. The surface morphology of the ZnO NPs was determined via scanning electron microscopy (SEM). The energy-dispersive X-ray spectroscopy (EDX) study showed that the synthesized ZnO NPs are present at the weight percentage of 66.38%. The X-ray diffraction (XRD) spectrum confirmed the hexagonal phase wurtzite structure, with the average particle size of 31 nm, and demonstrated the crystalline structure of ZnO NPs. Additionally, to all these experiments, we compared the anti-inflammatory properties of biogenic ZnO NPs to a standard drug. Biosynthesized ZnO NPs have revealed an effective anti-inflammatory activity at a higher concentration (100 mL-1) and showed 73% inhibition in comparison with diclofenac sodium drug. Zinc oxide was shown to be compatible with diclofenac sodium, according to the results. The ZnO NPs produced using the greener synthesis process have the potential to be used in a broad range of fields and also used as a good anti-inflammatory agent.

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Facile Synthesis and Characterization of Zinc Oxide Nanoparticles Using Psidium guajava leaf Extract and Their Antibacterial Applications

Cited by 25 publications

References 59 publications

Scaling-up strategies for controllable biosynthetic ZnO NPs using cell free-extract of endophytic Streptomyces albus: characterization, statistical optimization, and biomedical activities evaluation

Scaling-up strategies for controllable biosynthetic ZnO NPs using cell free-extract of endophytic Streptomyces albus: characterization, statistical optimization, and biomedical activities evaluation

Effect of green synthesized zinc oxide nanoadditives and rice bran oil biodiesel blend on performance and combustion characteristics of a variable compression ratio diesel engine: an experimental study

Biosynthesis and Anti‐inflammatory Activity of Zinc Oxide Nanoparticles Using Leaf Extract of Senecio chrysanthemoides

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