Structural, optical, electrochemical, and antibacterial features of ZnS nanoparticles: incorporation of Sn

Kumar, R. Dhinesh; Sakthivel, P.; Prabaharan, M.

doi:10.1007/s00339-019-2823-2

Cited by 40 publications

(9 citation statements)

References 37 publications

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“…The optical energy band gap (E g ) of Cd 0.9-x Zn 0.1 Bi x S QDs (0 ≤ x ≤ 0.05) is derived from Tauc relation by analyzing optical absorption data. This expression is related to the absorption coefficient as a function of incident photon energy [31].…”

Section: Optical Energy Band Gap (E G )mentioning

confidence: 99%

Role of Bi3+ ions on structural, optical, photoluminescence and electrical performance of Cd0.9-xZn0.1BixS QDs

et al. 2021

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In this work, the Cd0.9-xZn0.1BixS QDs with different compositions of Bi3+ ions (0 ≤ x ≤ 0.05) were synthesized using a facile chemical route. The prepared QDs were characterized for analyzing the structural, morphological, elemental, optical, band gap, photoluminescence and electrochemical properties. XRD results confirmed that the Cd0.9-xZn0.1BixS QDs have a cubic structure. The mean crystallite size was increased from ~ 2 to ~ 5 nm for the increase of Bi3+ ions concentration. The optical transmittance behavior was decreased with increasing Bi3+ ions. The scanning electron microscope images showed that the prepared QDs possessed agglomerated morphology and the EDAX confirmed the presence of doped elements as per stoichiometry ratio. The optical band gap was slightly blue-shifted for initial substitution (Bi3+ = 1%) of Bi3+ ions and red-shifted for further increase of Bi3+ compositions. The optical band gap was ranged between 3.76 and 4.0 eV. High intense red emission was received for Bi3+ (1%) doped Zn:CdS QDs. The red emission peaks were shifted to a higher wavelength side due to the addition of Bi3+ ions. The PL emission on UV-region was raised for Bi3+ (1%) and it was diminished. Further, a violet (422 nm) and blue (460 nm) emission were received for Bi3+ ions doping. The cyclic voltammetry analysis showed that Bi3+ (0%) possessed better electrical properties than other compositions of Bi3+ ions.

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Section: Optical Energy Band Gap (E G )mentioning

confidence: 99%

Role of Bi3+ ions on structural, optical, photoluminescence and electrical performance of Cd0.9-xZn0.1BixS QDs

et al. 2021

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“…The most important antiseptic agents competing with harmful antibiotics involve metals, their ions and compounds [ 25 , 26 , 27 , 28 ]. A prospective coating component with an antibacterial function is zinc sulfide, which is newly studied in this regard [ 29 , 30 ]. The ZnS nanoparticle is a potential inorganic antibacterial agent due to its high stability, antimicrobial activity and non-toxicity [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

“…A prospective coating component with an antibacterial function is zinc sulfide, which is newly studied in this regard [ 29 , 30 ]. The ZnS nanoparticle is a potential inorganic antibacterial agent due to its high stability, antimicrobial activity and non-toxicity [ 29 ]. Monodisperse zinc sulfide nanospheres exhibited high antibacterial activity against, for example, the strain of E. coli bacteria [ 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Selected Properties of Advanced Biomedical n-HA/ZnS/Sulfonated PEEK Coatings Fabricated on Zirconium Alloy by Duplex Treatment

Kuśmierczyk

Fiołek

Łukaszczyk

et al. 2022

IJMS

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In this work, sulfonated polyetheretherketone (S-PEEK)-based coatings, nanocrystalline ZnS and hydroxyapatite (n-HA) particles were developed on Zr-2.5Nb zirconium alloy substrates by electrophoretic deposition (EPD) combined with subsequent heat treatment. The properties of suspensions and deposition kinetics were studied. Cationic chitosan polyelectrolyte ensured the stabilization of the suspension and allowed for the co-deposition of all coating components on the cathode. The heating of the coated samples at a temperature of 450 °C and slow cooling resulted in sulfonation of the PEEK and the formation of dense coatings. The coatings were characterized by high roughness, hardness, modulus of elasticity and adhesion strength. The coatings revealed mild hydrophilicity, improved the electrochemical corrosion resistance of the alloy and induced the formation of hydroxyapatite with a cauliflower-like morphology on its surface during the Kokubo test. This work explored the great development potential of advanced sulfonated PEEK-based coatings, incorporating antibacterial and bioactive components by EPD combined with heat treatment to stimulate the surface properties of zirconium alloy for prospective dental and orthopedic applications. The antibacterial and osteoconductive properties of the obtained coatings should be further investigated.

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“…Bacterial infections are one of the leading causes of many diseases and may lead to death and drug resistance to bacteria has caused increasing concern [24]. Recently, nanoparticles are widely used in antimicrobial activity because their ratio of surface to volume has increased as the size of particles decreases, so the antioxidant activity of nanoparticles increases and they have a huge impact on bacteria by removing it [16,25,26]. In order to improve the properties of the material and to have the most effective nanoparticles against radiation, it is to improve the original material by doping impurities in the main lattice and changing the energy levels of these nanoparticles improved in catalytic and fabrication processes Solar Cell and nanod-rugs [4,5,8].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, feasibility study of production of singlet oxygen and hydroxyl radical and performance in antibacterial activity of ZnS:Eu QDs

Karimi

Sadeghi

Zahedifar

2022

jcc

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Eu doped zinc sulfide quantum dots (QDs) were prepared by the chemical Co-precipitation method. X-ray diffraction analysis (XRD), scanning electron microscopy (SEM) and infrared Fourier transform (FT-IR) analysis were used to characterize the quantum dots. The size of nano-crystals was estimated using a Williamson Hall equation.Then, the synthesized nanoparticles were studied to investigate the antibacterial effect, containing different strains of pathogenic bacteria, and the lowest inhibitory concentration and halo diameter were calculated. WilliamsonHall equation of about 6 nm with a strain of 0.7 nm, which is match with the reported size of the SEM image.The photoluminescence spectrum (PL) of ZnS:Eu QD in excitation wavelength of 280 nm shows two emission peaks at 384 and 715 nm. In order to use these QDs as photosensitizer in photodynamic therapy, anthracene and methylene blue chemical detectors were used for detection of singlet oxygen and hydroxyl radical, respectively.The significant point for these quantum dots is that, in addition to production of hydroxyl radical, they also have the ability to produce singlet oxygen with UVC radiation. The antimicrobial effect of ZnS:Eu QDs was also investigated using a disc diffusion method on 11 microbial strains. The results of this test showed that Two microorganisms S.dysenteriae, Serotype that were resistant to the antibiotic nystatin and showed the highest sensitivity to ZnS:Eu QDs.

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Structural, optical, electrochemical, and antibacterial features of ZnS nanoparticles: incorporation of Sn

Cited by 40 publications

References 37 publications

Role of Bi3+ ions on structural, optical, photoluminescence and electrical performance of Cd0.9-xZn0.1BixS QDs

Role of Bi3+ ions on structural, optical, photoluminescence and electrical performance of Cd0.9-xZn0.1BixS QDs

Microstructure and Selected Properties of Advanced Biomedical n-HA/ZnS/Sulfonated PEEK Coatings Fabricated on Zirconium Alloy by Duplex Treatment

Synthesis, feasibility study of production of singlet oxygen and hydroxyl radical and performance in antibacterial activity of ZnS:Eu QDs

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