Zn doping induced enhancement of multifunctional properties in NiO nanoparticles

Panigrahi, U. K.; Das, Pankaj Kumar; Biswal, R.; Sathe, Vasant; Babu, P. D.; Mitra, Arijit; Mallick, P.

doi:10.1016/j.jallcom.2020.155050

Cited by 57 publications

(18 citation statements)

References 65 publications

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“…30 The value of bond length of NiO determined from XRD matches well with the reported values of bond length determined from XRD in literature. 31,32 This observation is in sharp contrast to the observations reported in covalent tetrahedrally bonded (four-fold coordination), III-V ternaries like In x Ga 1Àx As 33 and GaAs x P 1Àx , 34 partially ionic tetrahedrally bonded, II-VI ternaries Zn 1Àx Be x Se, 35 Cd 1Àx Mn x Te, 36 ZnSe x Te 1Àx , 37 Zn 1Àx Mn x S, 38 etc., where the cation-anion near neighbor bond lengths are quite close to the parent binary compounds, and signicantly deviate from the bond lengths evaluated from the lattice parameter values obtained from XRD. The NNN distances have also been addressed in some of the above reports, where a relatively smaller deviation from VCA has been observed.…”

Section: Resultscontrasting

confidence: 59%

Structural, optical and electronic properties of Ni_1−xCo_xO in the complete composition range

et al. 2020

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Section: Resultscontrasting

confidence: 59%

Structural, optical and electronic properties of Ni_1−xCo_xO in the complete composition range

et al. 2020

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“…The average crystallite size of pure NiO and Mo doped NiO was found to be 21.34 nm and 17.76 nm respectively. Panigrahi et al 26 has investigated the effect of Mg and Zn doping on NiO nanoparticles by changing the ratio of dopant and the pure NiO exhibited cubic phase. According to the Panigrahi's report, the parameters of both bond length and lattice parameters exhibited increase with the increase in the ratio of metal dopant [26][27][28] .…”

Section: Resultsmentioning

confidence: 99%

“…Panigrahi et al 26 has investigated the effect of Mg and Zn doping on NiO nanoparticles by changing the ratio of dopant and the pure NiO exhibited cubic phase. According to the Panigrahi's report, the parameters of both bond length and lattice parameters exhibited increase with the increase in the ratio of metal dopant [26][27][28] . According to the above mentioned literature, the main dopant of Mo is responsible for the crystal structure observed in case of the doped NiO NPs.…”

Section: Resultsmentioning

confidence: 99%

Effect of Mo doping in NiO nanoparticles for structural modification and its efficiency for antioxidant, antibacterial applications

Alam

BaQais

Mir

et al. 2023

Sci Rep

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Novel molybdenum (Mo)-doped nickel oxide (NiO) Nanoparticles (NPs) were synthesized by using a simple sonochemical methodology and the synthesized NPs were investigated for antioxidant, and antibacterial applications. The X-ray diffraction (XRD) analysis revealed that the crystal systems of rhombohedral (21.34 nm) and monoclinic (17.76 nm) were observed for pure NiO and Mo-doped NiO NPs respectively. The scanning electron microscopy (SEM) results show that the pure NiO NPs possess irregular spherical shape with an average particle size of 93.89 nm while the Mo-doped NiO NPs exhibit spherical morphology with an average particle size of 85.48 nm. The ultraviolet–visible (UV–Vis) spectrum further indicated that the pure and Mo-doped NiO NPs exhibited strong absorption band at the wavelengths of 365 and 349 nm, respectively. The free radical scavenging activity of NiO and Mo-doped NiO NPs was also investigated by utilizing several biochemical assays. The Mo-doped NiO NPs showed better antioxidant activity (84.2%) towards ABTS. + at 200 µg/mL in comparison to their pure counterpart which confirmed that not only antioxidant potency of the doped NPs was better than pure NPs but this efficacy was also concentration dependant as well. The NiO and Mo-doped NiO NPs were further evaluated for their antibacterial activity against gram-positive (Staphylococcus aureus and Bacillus subtilis) and gram-negative (Pseudomonas aeruginosa and Escherichia coli) bacterial strains. The Mo-doped NiO NPs displayed better antibacterial activity (25 mm) against E. coli in comparison to the pure NPs. The synthesized NPs exhibited excellent aptitude for multi-dimensional applications.

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“…It is observed that the major peak at 200 shifted to a high diffraction angle, which further confirms that Ce was successfully substituted in the MgO. Previous studies also mentioned that shifting the diffraction angle towards a higher angle indicated that Ce doping had induced lattice contraction [ 27 , 28 ].…”

Section: Resultsmentioning

confidence: 59%

Synthesis and Spectral Characterisation of Fabricated Cerium-Doped Magnesium Oxide Nanoparticles: Evaluation of the Antimicrobial Potential and Its Membranolytic Activity through Large Unilamellar Vesicles

Khatua

Khatak

Roy

et al. 2023

JFB

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Considerable attention has been given to Magnesium oxide nanoparticles lately due to their antimicrobial potential, low toxicity to humans, high thermal stability, biocompatibility, and low cost of production. However, their successful transformation into sustainable drugs is limited due to their low membrane permeability, which reduces their bioavailability in target cells. Herein we propose Cerium-doped magnesium oxide nanoparticles (MgOCeNPs) as a powerful solution to above mentioned limitations and are compared with MgO NPs for their membrane permeability and antimicrobial activity. Both pure and Ce-doped were characterized by various spectroscopic and microscopic techniques, in which an X-ray diffraction (XRD) examination reveals the lattice patterns for doped nanoparticles. Furthermore, Atomic Force Microscopy (AFM) revealed the three-dimensional (3D) structure and height of the nanoparticle. The crystal structure (FCC) of MgO did not change with Ce doping. However, microstructural properties like lattice parameter, crystallite size and biological activity of MgO significantly changed with Ce doping. In order to evaluate the antimicrobial potential of MgOCeNPs in comparison to MgO NPs and to understand the underlying mechanisms, the antibacterial activity was investigated against human pathogenic bacteria E. coli and P. aeruginosa, and antifungal activity against THY-1, a fungal strain. MgOCeNPs were studied by several methods, which resulted in a strong antibacterial and antifungal activity in the form of an elevated zone of inhibition, reduced growth curve, lower minimum inhibitory concentration (MIC80) and enhanced cytotoxicity in both bacterial and fungal strain as compared to MgO nanoparticles. The study of the growth curve showed early and prolonged stationary phase and early decline log phase. Both bacterial and fungal strains showed dose-dependent cytotoxicity with enhancement in intracellular reactive oxygen species (ROS) generation and formation of pores in the membrane when interacting with egg-phosphatidylcholine model Large Unilamellar Vesicles (LUVs). The proposed mechanism of MgOCeNPs toxicity evidently is membranolytic activity and induction of ROS production, which may cause oxidative stress-mediated cytotoxicity. These results confirmed that MgOCeNPs are a novel and very potent antimicrobial agent with a great promise of controlling and treating other microbes.

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Zn doping induced enhancement of multifunctional properties in NiO nanoparticles

Cited by 57 publications

References 65 publications

Structural, optical and electronic properties of Ni_1−xCo_xO in the complete composition range

Structural, optical and electronic properties of Ni_1−xCo_xO in the complete composition range

Effect of Mo doping in NiO nanoparticles for structural modification and its efficiency for antioxidant, antibacterial applications

Synthesis and Spectral Characterisation of Fabricated Cerium-Doped Magnesium Oxide Nanoparticles: Evaluation of the Antimicrobial Potential and Its Membranolytic Activity through Large Unilamellar Vesicles

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Zn doping induced enhancement of multifunctional properties in NiO nanoparticles

Cited by 57 publications

References 65 publications

Structural, optical and electronic properties of Ni1−xCoxO in the complete composition range

Structural, optical and electronic properties of Ni1−xCoxO in the complete composition range

Effect of Mo doping in NiO nanoparticles for structural modification and its efficiency for antioxidant, antibacterial applications

Synthesis and Spectral Characterisation of Fabricated Cerium-Doped Magnesium Oxide Nanoparticles: Evaluation of the Antimicrobial Potential and Its Membranolytic Activity through Large Unilamellar Vesicles

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Structural, optical and electronic properties of Ni_1−xCo_xO in the complete composition range

Structural, optical and electronic properties of Ni_1−xCo_xO in the complete composition range