Abstract:In this work, cerium-and nickel-codoped ZnS nanoparticles were obtained by a sonochemical method for 20 min. The nanoparticles were characterized by X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), and microscopy electronic transmission (MET). The electrical properties are estimated through I-V curves and the antimicrobial activity was analyzed against E. coli (gram-negative) and S. aureus (gram-positive) bacteria using the diffusion disk methodology. The diffractograms indicate the obtaining o… Show more
“…The antibacterial activity of some other ZnS NPs reported in literatures are given in Table 4 for comparison [9,15,[50][51][52]. The ZOI as well as the test method and sample concentration were tabulated as well.…”
Section: Sem Analysismentioning
confidence: 99%
“…It can be synthesized by various methods such as physical, chemical, and biological approaches [8][9][10]. While physical routes such as thermal evaporation [11], pulsed laser vaporization [12], and molecular beam epitaxy [13] and chemical methods like coprecipitation [14], sol-gel [9], sonochemical [15], and hydrothermal [10] are widely employed, biosynthesis is still in its advent. In addition, the conventional physical and chemical methods are expensive and release hazardous materials into the environment [16]; hence, to reduce such risk, biosynthesis has been considered the most reliable and safe method.…”
The green synthesis of zinc sulfide nanoparticles (ZnS NPs)-mediated plant extract is gaining importance because of its simplicity, cost-effectiveness, and ecofriendly nature. In this work, ZnS NPs were synthesized using garlic extract as NPs facilitating agent, characterized by Fourier transform infrared, X-ray diffraction, scanning electron microscope, and UV–visible, then their antibacterial and hemocompatibility were assayed. Analysis revealed a cubic phase, 2.33 nm crystallite size, and a 3.75 eV optical bandgap. Bioactivity test against Staphylococcus aureus and Escherichia coli indicated dose-dependent potency closer to that of azithromycin standard drug and more efficient on S. aureus (Gram-positive) than E. coli (Gram-negative) bacteria. Biocompatibility test in terms of erythrocyte hemolysis, in reference to normal saline and water as minimal and maximal controls, confirmed nontoxic substance up to 100 μg/mL as the highest examined concentration and at which a lysis of 2.9% was detected. Therefore, it could be concluded that this biogenic method is effective in producing ZnS NPs with desirable properties for potential biomedical applications.
“…The antibacterial activity of some other ZnS NPs reported in literatures are given in Table 4 for comparison [9,15,[50][51][52]. The ZOI as well as the test method and sample concentration were tabulated as well.…”
Section: Sem Analysismentioning
confidence: 99%
“…It can be synthesized by various methods such as physical, chemical, and biological approaches [8][9][10]. While physical routes such as thermal evaporation [11], pulsed laser vaporization [12], and molecular beam epitaxy [13] and chemical methods like coprecipitation [14], sol-gel [9], sonochemical [15], and hydrothermal [10] are widely employed, biosynthesis is still in its advent. In addition, the conventional physical and chemical methods are expensive and release hazardous materials into the environment [16]; hence, to reduce such risk, biosynthesis has been considered the most reliable and safe method.…”
The green synthesis of zinc sulfide nanoparticles (ZnS NPs)-mediated plant extract is gaining importance because of its simplicity, cost-effectiveness, and ecofriendly nature. In this work, ZnS NPs were synthesized using garlic extract as NPs facilitating agent, characterized by Fourier transform infrared, X-ray diffraction, scanning electron microscope, and UV–visible, then their antibacterial and hemocompatibility were assayed. Analysis revealed a cubic phase, 2.33 nm crystallite size, and a 3.75 eV optical bandgap. Bioactivity test against Staphylococcus aureus and Escherichia coli indicated dose-dependent potency closer to that of azithromycin standard drug and more efficient on S. aureus (Gram-positive) than E. coli (Gram-negative) bacteria. Biocompatibility test in terms of erythrocyte hemolysis, in reference to normal saline and water as minimal and maximal controls, confirmed nontoxic substance up to 100 μg/mL as the highest examined concentration and at which a lysis of 2.9% was detected. Therefore, it could be concluded that this biogenic method is effective in producing ZnS NPs with desirable properties for potential biomedical applications.
“…Generally, ZnS doped with transition metal ion provide new opportunities for research and different applications. Now days, different synthesis techniques are being used to prepare pure ZnS and doped with transition metal ions semiconductors nanoparticles [11,[14][15][16][17][18]. For the synthesis of ZnS nanoparticles chemical co precipitation method was used.…”
Zinc Sulfide (ZnS) nanoparticles were successfully synthesized by chemical co-precipitation method using Zinc nitrate and sodium sulfide as a precursor material. Methacrylic acid was used as capping agent. The highly stable colloidal ZnS nanoparticles have been prepared at room temperature. The sample were characterized by X-ray diffraction (XRD), UV visible absorption spectroscopy, band gap measured by UV-Visible absorbance spectrum.In the XRD pattern of samples, there is no change in the cubic zincblende structure. The crystallite size of as prepared nanoparticles is found to be in the 7 nm range. The value of optical band gap has been found to be in the range 3.58 eV.
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