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Journal articles on the topic 'NiO nanoparticles'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Horie, Masanori, Keiko Nishio, Haruhisa Kato, et al. "The Expression of Inflammatory Cytokine and Heme Oxygenase-1 Genes in THP-1 Cells Exposed to Metal Oxide Nanoparticles." Journal of Nano Research 30 (March 2015): 116–27. http://dx.doi.org/10.4028/www.scientific.net/jnanor.30.116.

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The effect of manufactured nanoparticles on the expression of proinflammatory cytokine genes was examined. THP-1 cells differentiated into macrophage cells were exposed to TiO2 and NiO medium dispersions. After 2, 6, 12, or 24 hours exposure, the expression of IL-1β, IL-6, IL-8, TNF-α and HO-1 genes was determined by real-time PCR. TiO2 nanoparticles did not affect cytokine production. In addition, TiO2 nanoparticles did not dissolve in the dispersion. On the other hand, NiO nanoparticles enhanced the expression of all the genes tested. NiO dispersions were composed of 58.3 μg/mL of NiO nanopa

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2

Alshammri, Ghada A., Naglaa Fathy, Shereen Mohammed Al-Shomar, Alhulw H. Alshammari, El-Sayed M. Sherif, and Mohamed Ramadan. "Effect of Al2O3 and NiO Nanoparticle Additions on the Structure and Corrosion Behavior of Sn—4% Zn Alloy Coating Carbon Steel." Sustainability 15, no. 3 (2023): 2511. http://dx.doi.org/10.3390/su15032511.

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The application of a higher corrosion resistance coating modified with nano additions can effectively decrease or prevent corrosion from occurring. In the present work, a novel method is successfully developed for the modification of carbon steel surfaces aiming for high corrosion resistance using Sn—4% Zn alloy/nanoparticle composite (NiO+ Al2O3) coating. Sn—4% Zn alloy/nanoparticle composite (NiO+ Al2O3) coatings were deposed on carbon steel using a direct tinning process that involved a power mixture of Sn—4% Zn alloy along with a flux mixture. Regular coating and interface structures were

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3

Kareem, Md Moulana, and G. Vijaya Lakshmi. "Antioxidant and Catalytic Activity of Biosynthesized NiO Nanoparticles using Terminalia chebula Fruit Extract." Asian Journal of Chemistry 34, no. 1 (2021): 35–41. http://dx.doi.org/10.14233/ajchem.2022.23406.

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Nowadays, the biological synthesis of nanoparticles attains researchers’ interest in removing hazardous pollutants from water. Due to eco-friendliness, cost effective, non-hazardous and avoids the usage of catalyst and stabilizing agents. Herein, biosynthesized NiO nanoparticles were prepared at the ambient conditions by using aqueous Terminalia chebula fruit extract. Terminalia chebula fruit extract contains polyphenolic compounds, terpenoids, carbohydrates and flavonoids, which can be responsible for the nucleation of metal nanoparticles in biological synthesis. The resulted biosynthesized N

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4

Ahmad, Waseem, and Ankita Rawat. "New Frontiers in the Bio-inspired Green Synthesis of NiO NPs and Their Applications: An Overview." Nature Environment and Pollution Technology 22, no. 3 (2023): 1353–62. http://dx.doi.org/10.46488/nept.2023.v22i03.022.

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Nanoparticles are an important tool for new updations and advancements in diverse sectors. The inorganic metal and metal oxide nanoparticles have enormous research interest because of their great relevance in medicine, wastewater treatment, catalysis, biotechnology, and in the formation of energy storage devices. The NiO NPs can be synthesized using different physical and chemical methods and exploring all their possible applications. Green synthesis is the easy, safe, and effective nanoparticle synthesis route. Green metal and metal oxide nanoparticle syntheses provide the most affordable, co

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Taeño, María, David Maestre, Julio Ramírez-Castellanos, Shaohui Li, Pooi See Lee, and Ana Cremades. "Towards Control of the Size, Composition and Surface Area of NiO Nanostructures by Sn Doping." Nanomaterials 11, no. 2 (2021): 444. http://dx.doi.org/10.3390/nano11020444.

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Achieving nanostructures with high surface area is one of the most challenging tasks as this metric usually plays a key role in technological applications, such as energy storage, gas sensing or photocatalysis, fields in which NiO is gaining increasing attention recently. Furthermore, the advent of modern NiO-based devices can take advantage of a deeper knowledge of the doping process in NiO, and the fabrication of p-n heterojunctions. By controlling experimental conditions such as dopant concentration, reaction time, temperature or pH, NiO morphology and doping mechanisms can be modulated. In

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6

Mehmood, Naiha, Ijaz Hussain, Muhammad Muneer, et al. "Characterization of Nickel Oxide Nanoparticles and their Dose-Dependent Effects on Body Weight and Hematological Parameters in Female Albino Rats." Scholars Academic Journal of Biosciences 13, no. 06 (2025): 696–711. https://doi.org/10.36347/sajb.2025.v13i06.007.

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Commercially widespread nickel oxide nanoparticles (NiO NPs) demonstrate mostly unexplored toxicological features especially when applied to female subjects. This study observed NiO nanoparticles through dose-dependent effects on female albino rats' body weight parameters and hematological data. Transmission electron microscopy (TEM), X-ray diffraction (XRD) together with Fourier-transform infrared spectroscopy (FTIR) investigated properties of NiO nanoparticles. NiO nanoparticles were injected intravenously at three body weight doses of 0.5, 1.5 and 2.5 mg/kg for female rats over 28 days. A f

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7

Zakaria, Noor Hidayah Aniza, and Nafisah Osman. "Effect of pH Value on the Synthesis of NiO Nanoparticles and Microstructure of NiO Based Composite Anode." Solid State Phenomena 317 (May 2021): 447–53. http://dx.doi.org/10.4028/www.scientific.net/ssp.317.447.

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NiO nanoparticle was synthesized by a sol-gel method with three different pH values namely pH=1, 7 and 11, and then calcined at temperature of 450 ᵒC. The influence of different pH values on the physical properties of NiO nanoparticles were investigated by a particle size analyzer (PSA), field emission scanning electron microscope (FESEM) and X-ray diffractometer (XRD). Structural analysis confirmed that a cubic structure of NiO nanoparticle was obtained without any secondary phase for NiO powders prepared with pH=1, while the peak of secondary phase (Ni) appeared for NiO powders prepared with

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8

Rahal, H. T., R. Awad, A. M. Abdel-Gaber, and D. El-Said Bakeer. "Synthesis, Characterization, and Magnetic Properties of Pure and EDTA-Capped NiO Nanosized Particles." Journal of Nanomaterials 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/7460323.

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The effect of ethylenediaminetetraacetic acid (EDTA) as a capping agent on the structure, morphology, optical, and magnetic properties of nickel oxide (NiO) nanosized particles, synthesized by coprecipitation method, was investigated. Nickel chloride hexahydrate and sodium hydroxide (NaOH) were used as precursors. The resultant nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). XRD patterns showed that NiO have a face-centered cubic (FCC) structure. The crystallite size, estimated by Scherrer formula, has

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Selvarajan, Dr R., Ms Vaishnavi M, Ms Raksha B, Ms Deepikaa R, and Dr Durga M. "Green Synthesis of Nickel Oxide (Nio) Nanoparticles with Brassica oleracea Var. Capitata F. Rubra, Its Characterisation and Phytochemical Investigation." Saudi Journal of Medical and Pharmaceutical Sciences 11, no. 01 (2025): 58–64. https://doi.org/10.36348/sjmps.2025.v11i01.011.

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Most nanoparticles have diameters that lie within 1 to 100 nm. A variety of metal oxide nanoparticles can be synthesised chemically as well as biologically. NiO nanoparticles, which are synthesised chemically, tend to be highly toxic in their effects. In contrast, synthesis by the route of biogenesis or biomimetics is much more favourable than chemical synthesis. The pre-existing properties of purple cabbage are remarkably enhanced by NiO nanoparticles. Nickel oxide (NiO) nanoparticles were synthesised from the leaves of Brassica oleracea var. capitata. f. rubra (purple cabbage) by reducing Ni

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10

Sabo, Y. T., D. E. A. Boryo, I. Y. Chindo, and A. M. Auwal. "Nanocomposites transformed from polystyrene waste/antimony, barium and nickel oxides nanoparticles with improved thermal and electrical properties." Nigerian Journal of Chemical Research 26, no. 2 (2022): 117–27. http://dx.doi.org/10.4314/njcr.v26i2.7.

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In this experiment, the oxide nanoparticles were synthesized via chemical precipitation and the nanocomposites were produced using in situ polymerization method with varying nanoparticles contents ranged from 0.1 g to 1.0 g for electrical conductivity and from 0.05 g to 0.25 g for thermal conductivity. The electrical and thermal conductivities of nanocomposites were investigated and compared with the values obtained for untreated polystyrene. It was observed that the electrical and thermal properties were higher for the nanocomposites and increase with increasing nanoparticle concentrations in

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11

Moya, Carlos, Jorge Ara, Amílcar Labarta, and Xavier Batlle. "Unraveling the Magnetic Properties of NiO Nanoparticles: From Synthesis to Nanostructure." Magnetism 4, no. 3 (2024): 252–80. http://dx.doi.org/10.3390/magnetism4030017.

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NiO nanoparticles have garnered significant interest due to their diverse applications and unique properties, which differ markedly from their bulk counterparts. NiO nanoparticles are p-type semiconductors with a wide bandgap, high discharge capacity, and high carrier density, making them ideal for use in batteries, sensors, and catalysts. Their ability to generate reactive oxygen species also imparts disinfectant and antibiotic properties. Additionally, the higher Néel temperature of NiO compared with other antiferromagnetic materials makes it suitable for high-temperature applications in spi

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12

Faizan, Muhammad, Mariyam Fatima, Faryal Shams, et al. "Plant Extract Mediated Biogenic Synthesis and Characterization of Nickel Oxide Nanoparticles and its Environmental and Antibacterial Applications." Journal of Chemistry and Environment 2, no. 2 (2023): 109–21. http://dx.doi.org/10.56946/jce.v2i2.280.

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This research focuses on the green synthesis of Nickel Oxide nanoparticles (NiO NPs) using Musa paradisiaca, commonly known as banana plant, as a cost-effective and eco-friendly approach. Musa paradisiaca, utilized in traditional medicine, possesses various medicinal properties, including antioxidant, antibiotic, allogeneic, and hypoglycemic antimicrobial attributes. The peduncle extract of Musa paradisiaca serves as a reducing and capping agent for NiO nanoparticle synthesis. Characterization techniques such as XRD, EDX, and UV-vis spectroscopy were employed to analyze the properties of the s

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13

Tsai, Chih-Hung, Chia-Ming Lin, and Yen-Cheng Liu. "Increasing the Efficiency of Dye-Sensitized Solar Cells by Adding Nickel Oxide Nanoparticles to Titanium Dioxide Working Electrodes." Coatings 10, no. 2 (2020): 195. http://dx.doi.org/10.3390/coatings10020195.

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In this study, nickel oxide (NiO) nanoparticles were added to a titanium dioxide (TiO2) nanoparticle paste to fabricate a dye-sensitized solar cell (DSSC) working electrode by using a screen-printing method. The effects of the NiO proportion in the TiO2 paste on the TiO2 working electrode, DSSC devices, and electron transport characteristics were comprehensively investigated. The results showed that adding NiO nanoparticles to the TiO2 working electrode both inhibited electron transport (a negative effect) and prevented electron recombination with the electrolyte (a positive effect). The elect

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14

Ahmad, Harith, Siti Aisyah Reduan, and Norazriena Yusoff. "Chitosan capped nickel oxide nanoparticles as a saturable absorber in a tunable passively Q-switched erbium doped fiber laser." RSC Advances 8, no. 45 (2018): 25592–601. http://dx.doi.org/10.1039/c8ra04380a.

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Nickel oxide (NiO) nanoparticles prepared from a nickel(ii) chloride hexahydrate precursor are used to form a chitosan capped NiO nanoparticle thin film that serves as a saturable absorber in a passively Q-switched erbium doped fiber laser.

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15

Han, Zhao Xiang, Dan Dan Wu, Zhen Zhu, and Yu Rong Liu. "Cytotoxicity and Immunotoxicity Assessment of NiO Nanoparticles Using the Chlamydomonas reinhardtii." Applied Mechanics and Materials 198-199 (September 2012): 52–55. http://dx.doi.org/10.4028/www.scientific.net/amm.198-199.52.

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Little is known about the potential behavior and ecotoxicity of nanoparticles to aquatic organisms. The cytotoxicity and immunotoxicity of NiO-Nanoparticles and Chlamydomonas reinhardtii. It shown that the mitochondrial activity was gradually reduced significantly at the different exposure concentrations for NiO nanoparticles. NiO nanoparticles had a similar effect on membrane integrity as that observed for inhibition of cellular metabolic activity, with a significant reduction in membrane integrity. The NiO nanoparticles exhibited a significantly higher degree of BOD compared to the control g

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16

Elhosiny Ali, H., Z. R. Khan, H. Algarni, E. F. El-Shamy, Mohd Shkir, and Yasmin Khairy. "Engineering the Physical Properties of Polyvinyl Pyrrolidone/Polyvinyl Alcohol Blend Films by Adding Tb–NiO Nanoparticles for Flexible Optoelectronics Applications." Journal of Nanoelectronics and Optoelectronics 17, no. 3 (2022): 374–82. http://dx.doi.org/10.1166/jno.2022.3216.

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Polyvinyl pyrrolidone (PVP)-polyvinyl alcohol (PVA) (1:1) polymer mixture films were developed using the solution-casting technique. Physical properties engineering of as grown chemical casting films were achieved through the Tb–NiO nanoparticles mixing in a polymer blend with different content of 0.0, 0.037, 0.37, 1.85, and 3.7 wt%. The variation of physical properties of nanocomposites thin layer was examined from X-ray diffractometer, atomic force microscope (AFM), FTIR spectroscopy, and Uv-visible spectroscopy. Optical band gaps of polymer nanocomposites films were calculated to study the

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17

Abdallah, A. M., H. Basma, and R. Awad. "Preparation, Characterization, and Application of Nickel Oxide Nanoparticles in Glucose and Lactose Biosensors." Modern Applied Science 13, no. 6 (2019): 99. http://dx.doi.org/10.5539/mas.v13n6p99.

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Nickel oxide (NiO) nanoparticles were synthesized using the co-precipitation method. The structural, morphological, optical and magnetic properties of NiO nanoparticles were investigated by X-ray Powder Diffraction (XRD), Transmission Electron Microscopy (TEM), Fourier Transform Infrared Spectroscopy (FTIR), UV-vis Spectroscopy and Vibrating Sample Magnetometer (VSM). The influence of sonication time on the physical characteristics of NiO nanoparticles was illustrated. The interactions of NiO nanoparticles with both glucose and lactose have been0 studied using UV-vis Absorption Spectroscopy an

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18

Li, Qingting, Wen Zeng, Qu Zhou, and Zhongchang Wang. "Highly Sensitive Ethanol Sensing Using NiO Hollow Spheres Synthesized via Hydrothermal Method." Chemosensors 10, no. 8 (2022): 341. http://dx.doi.org/10.3390/chemosensors10080341.

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Excessive ethanol gas is a huge safety hazard, and people will experience extreme discomfort after inhalation, so efficient ethanol sensors are of great importance. This article reports on ethanol gas sensors that use NiO hollow spheres assembled from nanoparticles, nanoneedles, and nanosheets prepared by the hydrothermal method. All of the samples were characterized for performance evaluation. The sensors based on the NiO hollow spheres showed a good response to ethanol, and the hollow spheres assembled from nanosheets (NiO-S) obtained the best ethanol gas-sensing performance. NiO-S provided

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19

Abdallah, A. M., and R. Awad. "Mixed magnetic behavior in gadolinium and ruthenium co-doped nickel oxide nanoparticles." Physica Scripta 97, no. 1 (2022): 015802. http://dx.doi.org/10.1088/1402-4896/ac46f2.

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Abstract Pure and different concentrations from (Gd, Ru) co-doped NiO nanoparticles, capped with Polyvinylpyrrolidone (PVP), were fabricated by the co-precipitation method. The nanoparticles were characterized by different techniques. The Rietveld refinements of x-ray Diffraction (XRD) patterns confirmed the formation of the pure face-centered-cubic NiO phase. The x-ray Photo-induced Spectroscopy (XPS) assured the trivalent oxidation state of the doped ions Gd3+ and Ru3+ and unveiled the multiple oxidation states of nickel ions (Ni2+ and Ni3+), emerging from the vacancies in the samples. The T

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20

Dan, Wei Yi, Jian Fen Li, Xiang Chen Tu, and Kui Le Jia. "Preparation and Characterization of NiO Nanoparticles through Thermal Decomposition of Bis(glycinato)Nickel(II)dihydrate." Advanced Materials Research 601 (December 2012): 21–25. http://dx.doi.org/10.4028/www.scientific.net/amr.601.21.

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NiO nanoparticles were successfully prepared by decomposing the predecessor bis(glycinato)nickel(II)dihydrate in the presence of oleylamine and triphenylphosphine (TPP), and different approaches including Fourier transforms infrared spectrometry(FT-IR), X-ray diffraction(XRD) and transmission electron microscopy (TEM) were used to characterize the NiO nanoparticles. Meanwhile, the effects of TPP concentration and reaction time on the size and yield of NiO nanoparticles derived from precursors were thoroughly investigated in this paper. The analysis results indicated that the prepared NiO nanop

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Omelyanchik, Alexander, Silvia Villa, Gurvinder Singh, et al. "Magnetic Properties of Bi-Magnetic Core/Shell Nanoparticles: The Case of Thin Shells." Magnetochemistry 7, no. 11 (2021): 146. http://dx.doi.org/10.3390/magnetochemistry7110146.

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Bi-magnetic core/shell nanoparticles were synthesized by a two-step high-temperature decomposition method of metal acetylacetonate salts. Transmission electron microscopy confirmed the formation of an ultrathin shell (~0.6 nm) of NiO and NiFe2O4 around the magnetically hard 8 nm CoFe2O4 core nanoparticle. Magnetization measurements showed an increase in the coercivity of the single-phase CoFe2O4 seed nanoparticles from ~1.2 T to ~1.5 T and to ~2.0 T for CoFe2O4/NiFe2O4 and CoFe2O4/NiO, respectively. The NiFe2O4 shell also increases the magnetic volume of particles and the dipolar interparticle

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22

Abd-Ghani, Siti Nurdalila, Hon Kah Wye, Ing Kong, Roslan Abd-Shukor, and Wei Kong. "Enhanced Transport Critical Current Density of NiO Nano Particles Added YBCO Superconductors." Advanced Materials Research 895 (February 2014): 105–8. http://dx.doi.org/10.4028/www.scientific.net/amr.895.105.

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The effects of NiO nanoparticles addition in YBa2Cu3O7-δ (YBCO) superconductors had been investigated. YBCO superconductor powders were prepared by using high purity oxide powders via solid state reaction method. 0.01 0.05 wt.% of NiO nanoparticles were added into YBCO. The critical temperature (Tc) and transport critical current density (Jc) were determined by using four point probe method. The lattice parameters and morphology of the samples were characterized by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM), respectively. Tc of YBCO increased from 84 K to 87 K with 0.02 wt.

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Oukarroum, Abdallah, Wassila Zaidi, Mahshid Samadani, and David Dewez. "Toxicity of Nickel Oxide Nanoparticles on a Freshwater Green Algal Strain ofChlorella vulgaris." BioMed Research International 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/9528180.

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A freshwater microalga strain ofChlorella vulgariswas used to investigate toxic effects induced by nickel oxide nanoparticles (NiO-NPs) in suspension. Algal cells were exposed during 96 h to 0–100 mg L−1of NiO-NPs and analyzed by flow cytometry. Physicochemical characterization of nanoparticles in tested media showed a soluble fraction (free Ni2+) of only 6.42% for 100 mg L−1of NiO-NPs, indicating the low solubility capacity of these NPs. Toxicity analysis showed cellular alterations which were related to NiO-NPs concentration, such as inhibition in cell division (relative cell size and granul

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24

Lee, Sun Sook, Hyun Jin Kim, Taek-Mo Chung, Young Kuk Lee, Chang Gyoun Kim, and Ki-Seok An. "Fabrication of Nanocomposite Based on ZnO Nanowire." Journal of Nanoscience and Nanotechnology 8, no. 9 (2008): 4895–98. http://dx.doi.org/10.1166/jnn.2008.ic80.

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ZnO-NiO core–shell nanowires and Ni-ZnO nanoparticle–nanowire composites have been synthesized by atomic layer deposition (ALD) and H2 thermal reduction, respectively. Grown ZnO nanowires on Si substrates by vapor transport method were used as templates for the growth of NiO layers. In order to prevent interfacial interaction between deposited NiO and ZnO nanowires templates by the reaction at low temperature and to precisely control the thickness of NiO layer, ALD technique was suitably employed to form the ZnO-NiO core–shell nanowires. All surface area of ZnO nanowires was completely and uni

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Han, Zhao Xiang, Meng Zhang, and Chun Xia Lv. "Bioaccumulation and Toxicity of NiO Nanoparticles in Gracilaria lemaneiformis." Advanced Materials Research 518-523 (May 2012): 942–45. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.942.

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Abstract. Little is known about the potential behavior and ecotoxicity of nanoparticles to aquatic organisms. To carefully address this issue, we conducted a comprehensive toxicity assessment, including NiO nanoparticles accumulation and toxicity tests as well as Lipid peroxidation (LPO), MDA content, mitochondrial depolarization and Reactive oxygen radical (ROS) analysis using Gracilaria lemaneiformis as a model organism. Our results demonstrated that the concentration of NiO Nanoparticles accumulated in Gracilaria lemaneiformis increased with the extended incubation time and a considerable a

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SZINDLER, M., and M. M. SZINDLER. "THE EFFECT OF ZnO/NiO NANOCOMPOSITE ON THE PROPERTIES OF A PHOTOELECTRODE OF A DYE SENSITIZED SOLAR CELL." Digest Journal of Nanomaterials and Biostructures 15, no. 3 (2020): 815–22. http://dx.doi.org/10.15251/djnb.2020.153.815.

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The aim of the article was to investigate the structure and optical and properties of the ZnO/NiO nanoparticle layer with a different percentage of individual components produced by the sol-gel method. The influence of the developed layers on the properties of dye sensitized solar cells was also determined. Phase identification of the ZnO and NiO samples was confirmed by X-ray diffraction and TEM analysis. From the synthesized nanoparticles, a ZnO/NiO layer was prepared by screen printing method. Studies of the surface morphology of this layer from as prepared nanoparticles, deposited on an FT

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Li, Mengjie, Jie Dong, Dongmei Deng, et al. "Mn3O4/NiO Nanoparticles Decorated on Carbon Nanofibers as an Enzyme-Free Electrochemical Sensor for Glucose Detection." Biosensors 13, no. 2 (2023): 264. http://dx.doi.org/10.3390/bios13020264.

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Transition metal oxides have garnered a lot of attention in the field of electrocatalysis along with their unique crystal structure and excellent catalytic properties. In this study, carbon nanofibers (CNFs) decorated with Mn3O4/NiO nanoparticles were made using electrospinning and calcination. The conductive network constructed by CNFs not only facilitates electron transport, but also provides landing sites for nanoparticles, thus reducing nanoparticle aggregation and exposing more active sites. Additionally, the synergistic interaction between Mn3O4 and NiO improved electrocatalytic capacity

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Noorlaily, Prawistin, Mohamad Insan Nugraha, Khairurrijal, Mikrajuddin Abdullah, and Ferry Iskandar. "Ethylene Glycol Route Synthesis of Nickel Oxide Nanoparticles as a Catalyst in Aquathermolysis." Materials Science Forum 737 (January 2013): 93–97. http://dx.doi.org/10.4028/www.scientific.net/msf.737.93.

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NiO nanoparticles have been synthesized as catalyst in aquathermolysis for viscosity reduction of heavy oil. NiO nanoparticles were prepared by using NiCl2•6H2O as raw material via ethylene glycol route. In the process, NH4HCO3and ethylene glycol were used as reductant and to prevent nanoparticles from agglomeration, respectively. The obtained NiO nanoparticles have crystallite size about 15.4 nm, nearly uniform particles size, well dispersion with diameter around 65 nm, spherical morphology, and the spesific surface area 158.4 m2/gram. In a catalytic activity test, it showed that the viscosit

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Al-saidi, Muthana, Read Jaleel Ahmad Al-bana, Ekhlas Hassan, and Bahaa Abdullah Laftaah AL-Rubaii. "Extraction and characterization of nickel oxide nanoparticles from Hibiscus plant using green technology and study of its antibacterial activity." Biomedicine 42, no. 6 (2022): 1290–95. http://dx.doi.org/10.51248/.v42i6.2071.

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Introduction and Aim: Nanomaterials are tiny particles varying in size from 1-100 nanometers with wide implications in the fields of medicine, biology, and pharmaceutical sciences. In this study, we aimed to extract Nickel oxide nanoparticles (NiO-NP) from the tropical hibiscus plant, and evaluate these nanoparticles for their structural features as well as study the antimicrobial activity of NiO-NPs against Gram-positive and Gram-negative bacteria. Materials and Methods: NiO nanoparticles were synthesized by green nanotechnology using hibiscus extract and nickel nitrate as precursors. The NiO

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Sabo, Y. T., D. E. Boryo, I. Y. Chindo, and A. I. Habib. "Nanocomposites Transformed from Polystyrene Waste/Antimony, Barium and Nickel Oxides Nanoparticles with Improved Mechanical Properties." Journal of Applied Sciences and Environmental Management 25, no. 11 (2022): 1921–25. http://dx.doi.org/10.4314/jasem.v25i11.11.

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In this experiment, the oxide nanoparticles were synthesized via chemical precipitation and the nanocomposites were produced using in situ polymerization method with varying nanoparticles contents ranged from 0 to 5 g. The mechanical properties of the nanocomposites were investigated and compared with the values obtained for untreated polystyrene. It was observed that the mechanical properties were higher for the nanocomposites and increase with increasing nanoparticle concentrations in the samples. It can be observed that the untreated polystyrene gave a tensile strength of 945.25 N/mm2. At h

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Straumal, Elena A., Andrey A. Mazilkin, Inna O. Gozhikova, Lyudmila L. Yurkova, Sergey Yu Kottsov, and Sergey A. Lermontov. "NiO-Based Aerogels—Unexpected Formation of Metallic Nickel Nanoparticles during Supercritical Drying Process." Nanomaterials 12, no. 22 (2022): 4033. http://dx.doi.org/10.3390/nano12224033.

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The aim of the study is to investigate the influence of the solvents applied both in sol–gel process and for supercritical drying (SCD) on NiO aerogels’ properties. NiO aerogels were synthesized using methanol and 2-methoxy-ethanol (MeGl) as sol solvents. SCD was performed using iso-propanol, methanol and tert-butyl-methyl ether as supercritical fluids. The obtained samples were characterized using low-temperature nitrogen adsorption, X-ray diffraction analysis, mass-spectra analysis and STEM and TEM methods. It was found that specific surface area and the phase and chemical composition strong

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32

Usha, V., R. Vettumperumal, S. Kalyanaraman, and R. Thangavel. "Analysis of Linear and Nonlinear Optical Properties of NiO Nanoparticles by Sol–Gel Method." International Journal of Nanoscience 17, no. 05 (2018): 1850003. http://dx.doi.org/10.1142/s0219581x18500035.

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Nanocrystalline nickel oxide (NiO) were prepared by low cost sol–gel method and analyzed using X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray spectra (EDX), Raman, photoluminescence (PL) and UV-Vis-NIR spectroscopic techniques. XRD spectrum confirmed the face centered cubic structure of NiO nanoparticles and it showed polycrystalline nature without any impurity. Magnetic ordered phase related modes of NiO nanoparticles was observed from Raman spectra, which also confirmed the absence of secondary phases in NiO nanoparticles. Linear and nonlinear refractive

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Bayal, Nisha, and P. Jeevanandam. "Synthesis of NiO Based Bimetallic Mixed Metal Oxide Nanoparticles by Sol-Gel Method." Advanced Materials Research 585 (November 2012): 164–68. http://dx.doi.org/10.4028/www.scientific.net/amr.585.164.

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Nickel oxide based bimetallic mixed metal oxide nanoparticles are of considerable interest and they have been used as catalysts for NOx decomposition and as reactive adsorbents for ultra deep desulfurization. In the present study, nanoparticles of NiO-ZnO, NiO-CuO and NiO-MgO were synthesized by sol-gel method. The mixed metal oxide nanoparticles were characterized by X-ray diffraction, diffuse reflectance spectroscopy, field emission scanning electron microscopy and transmission electron microscopy. Pure NiO nanoparticles show a band gap of 4.24 eV and the band gap shows a blue shift or red s

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Kaidar, Bayan, Gaukhar Smagulova, Aigerim Imash, and Zulkhair Mansurov. "Gas Sensitive Materials Based on Polyacrylonitrile Fibers and Nickel Oxide Nanoparticles." Journal of Composites Science 6, no. 11 (2022): 326. http://dx.doi.org/10.3390/jcs6110326.

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The results of the synthesis of PAN/NiO composite fibers by the electrospinning method are presented. The electrospinning installation included a rotating drum collector for collecting fibers. Nickel oxide nanoparticles were synthesized by solution combustion synthesis from nickel nitrate and urea. It was shown that monophase NiO nanoparticles with average particle sizes of 154 nm could be synthesized by this method. NiO nanoparticles were investigated by X-ray diffraction analysis and scanning electron microscopy. Based on NiO nanoparticles, composite PAN/NiO fibers were obtained by electrosp

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Alsalme, Ali, Huda Alsaeedi, Malak Faisal Altowairqi, Rais Ahmad Khan, Ghadah M. Alharbi, and Afnan A. Alhamed. "Sol-Gel Synthesized Nickel-Oxide-Based Fabrication of Arsenic (As3+) Sensor." Inorganics 11, no. 2 (2023): 83. http://dx.doi.org/10.3390/inorganics11020083.

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Heavy metal ions can have a negative impact on human health when they are present in the environment and diet. In order to enhance healthcare globally, simple, dependable, sensitive, rapid, and accurate technologies for their detection must be created. Herein, we report a sol-gel preparation of nickel oxide (NiO) nanoparticles. The prepared NiO nanoparticles are extensively characterized by PXRD, SEM, and EDS approaches. The obtained SEM results showed that NiO has a nanosphere-shaped surface morphology. The surface area of a gold electrode (Au) was fabricated with NiO nanoparticles via the dr

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Luo, Xiaohan, and Gehui Wen. "NiO@C and Ni@C Nanoparticles: Synthesis, Characterization and Magnetic Properties." Nano 15, no. 06 (2020): 2050072. http://dx.doi.org/10.1142/s1793292020500721.

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Carbon-coated nickel oxide nanoparticles (NiO@C) were synthesized by near-critical hydrothermal method using starch and nickel nitrate as precursors. Also,carbon-coated Ni nanoparticles (Ni@C) were obtained by annealing NiO@C nanoparticles in hydrogen atmosphere. The samples were characterized by X-ray diffraction (XRD), transmission electron microscopy(TEM), Raman spectroscopy, simultaneous thermal analysis (STA) and physical property measurement system (PPMS). The average sizes of the NiO and Ni nanoparticles were 18[Formula: see text]nm and 15[Formula: see text]nm according to the XRD analy

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Minisha, S., J. Johnson, Saikh Mohammad Wabaidur, et al. "Synthesis and Characterizations of Fe-Doped NiO Nanoparticles and Their Potential Photocatalytic Dye Degradation Activities." Sustainability 15, no. 19 (2023): 14552. http://dx.doi.org/10.3390/su151914552.

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Recently, the preparation of smart multifunctional hybrid nanoparticles has captured significant interest in versatile areas, including medicine, environment, and food, due to their enhanced physicochemical properties. The present study focuses on the synthesis of Fe-doped NiO nanoparticles by the coprecipitation method using the sources of nickel (II) acetate tetrahydrate and iron (III) nitrate nonahydrate. The prepared Fe-doped NiO nanoparticles are characterized by X-ray diffraction, Fourier transform infrared spectroscopy, UV–visible spectroscopy, field-emission scanning electron microscop

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38

Geetha N B, Boopathy, Shobana S, and Sindhuja A. "FABRICATION AND ANALYSIS OF NICKEL OXIDE NANOPARTICLES FOR ADVANCED APPLICATIONS." Bioscan 20, Supplement 2 (2025): 621–25. https://doi.org/10.63001/tbs.2025.v20.i02.s2.pp621-625.

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Nickel oxide (NiO) nanoparticles were successfully synthesized using a novel microwave irradiation technique, employing glycine as a fuel. The synthesized NiO nanopowders underwent comprehensive characterization through powder X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), Fourier-transform infrared spectroscopy (FT-IR), high-resolution scanning electron microscopy (HR-SEM), and room-temperature vibrating sample magnetometry (VSM). XRD analysis confirmed the formation of a single-phase cubic NiO structure. HR-SEM images revealed nanoparticle-like morphology, corroborating

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Suresh, J., R. Yuvakkumar, A. Joseph Nathanael, M. Sundrarajan, and Sun Ig Hong. "Antibacterial and Wash Durability Properties of Untreated and Treated Cotton Fabric Using MgO and NiO Nanoparticles." Applied Mechanics and Materials 508 (January 2014): 48–51. http://dx.doi.org/10.4028/www.scientific.net/amm.508.48.

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We report an antibacterial and wash durability behaviour of MgO and NiO nanoparticles treated cotton fabric using sodium alginate as cross linker. The metal oxide nanoparticles treated cotton fabric using sodium alginate as a crosslinker was characterized employing SEM-EDX and their antibacterial activity was analyzed. The enhanced zone of inhibition and wash durability behaviour was observed for NiO nanoparticles treated fabric. However, MgO nanoparticles showed less significant antibacterial and wash durabilty activities when compared to NiO nanoparticles treated cotton fabrics.

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Sachdeva, Harshita, Diksha Dwivedi, R. R. Bhattacharjee, Sarita Khaturia, and Rekha Saroj. "NiO Nanoparticles: An Efficient Catalyst for the Multicomponent One-Pot Synthesis of Novel Spiro and Condensed Indole Derivatives." Journal of Chemistry 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/606259.

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An efficient catalytic protocol for the synthesis of novel spiro[indoline-3,4′-pyrano[2,3-c]thiazole]carbonitriles and condensed thiazolo[5′′,4′′:5′,6′]pyrano[4′,3′:3,4]furo[2,3-b]indole derivatives is developed in a one-pot three-component approach involving substituted 1H-indole-2,3-diones, activated methylene reagent, and 2-thioxo-4-thiazolidinone under conventional heating and microwave irradiation. This paper describes the use of NiO nanoparticles as catalyst for the synthesis of novel spiro and condensed indole derivatives by Knoevenagel condensation followed by Michael addition. The adv

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Yang, Ying, Jia Rui Cui, Peng Fei Yi, Si Xiao, and Xue Yi Guo. "Effect of NiO Nanoparticles on Magnetic Polymer Electrolyte for Dye-Sensitized Solar Cells." Advanced Materials Research 658 (January 2013): 97–101. http://dx.doi.org/10.4028/www.scientific.net/amr.658.97.

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A magnetic polymer electrolyte using agarose as polymer matrix, NMP as solvent and NiO nanoparticles as modifier was investigated and employed in the dye-sensitized solar cell (DSSC) in this paper. The influence of NiO nanoparticles content on magnetic polymer electrolyte was characterized by SEM and ionic conductivity test. The photovoltaic properties of the corresponding DSSCs were studied by photovoltaic performance tests. The results showed that the surface morphology of the polymer electrolyte with 1.0wt% NiO nanoparticles was smooth and this magnetic polymer electrolyte showed the maximu

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Tian, Zong Min, Xu Xiang, Zhi Wei Li, and Feng Li. "Liquid-Phase Synthesis of NiO-Loaded Ag Nanoparticles and Enhanced Photo-Degradation Performance." Advanced Materials Research 287-290 (July 2011): 145–49. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.145.

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We have synthesized layered Ni(OH)2via a facile liquid-phase precipitation method. NiO with a micro/nano-structure was obtained via calcining Ni(OH)2precursor at 350°C. The as-prepared NiO was utilized as a support to load Ag nanocrystals. SEM and TEM observations showed that Ag nanoparticles were homogeneously distributed onto NiO support and the Ag nanoparticles have sizes of 4-5 nm. The photocatalytic activity of NiO-loaded Ag was investigated by the photodegradation of methylene blue (MB) under the irradiation of visible light. The results suggest that the loading of Ag nanoparticles can e

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UMARALIKHAN L and M. Jamal Mohamed Jaffar. "Antibacterial and anticancer properties of NiO nanoparticles by co-precipitation method." JOURNAL OF ADVANCED APPLIED SCIENTIFIC RESEARCH 1, no. 4 (2021): 24–35. http://dx.doi.org/10.46947/joaasr14201628.

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Nickel oxide nanoparticles synthesized at room temperature (RT NiO NPs) and 60°C temperature treated nickel oxide nanoparticles (RT60 NiO NPs) were synthesized by the co-precipitation methods. The antibacterial studies performed against set of (gram positive) S.aureus and (gram negative) E. coli bacterial strains showed that the RT60 NiO NPs possessed a greater antibacterial effect as compared to the RT NiO NPs. The cytotoxic effect of the RT NiO and RT60 NiO NPs were examined in cultured (MCF-7) human breast cancer cells.

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Zhang, Ning, Huijun Li, Zhouqing Xu, Rui Yuan, Yongkun Xu, and Yanyu Cui. "Enhanced Acetone Sensing Property of a Sacrificial Template Based on Cubic-Like MOF-5 Doped by Ni Nanoparticles." Nanomaterials 10, no. 2 (2020): 386. http://dx.doi.org/10.3390/nano10020386.

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Studying an acetone sensor with prominent sensitivity and selectivity is of great significance for the development of portable diabetes monitoring system. In this paper, cubic-like NiO/ZnO composites with different contents of Ni2+ were successfully synthesized by modifying MOF-5 with Ni2+-doped. The structure and morphology of the prepared composites were characterized by XRD, XPS, and SEM. The experimental results show that the NiO/ZnO composite showed an enhanced gas sensing property to acetone compared to pure ZnO, and the composites showed the maximum response value when Ni2+ loading amou

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Lee, Hak Moo, Hyung-Koo Chung, Hong-Gyu Park, et al. "Nickel Oxide Nanoparticles Doped Liquid Crystal System for Superior Electro-Optical Properties." Journal of Nanoscience and Nanotechnology 15, no. 10 (2015): 8139–43. http://dx.doi.org/10.1166/jnn.2015.11263.

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We examined the properties of nematic liquid crystal (N-LC) systems with dispersed nickel oxide nanoparticles (NPs). Uniform LC alignments with regular pretilt angles were achieved on rubbed polymer surface regardless of NiO nanoparticles concentration. We confirmed the electro-optical characteristics of twisted nematic (TN) cells containing NiO nanoparticles on rubbed polymer surface, which exhibited lower threshold voltages and faster response times with less capacitance hysteresis than pure LC cells. It is clear that the response time of TN cells on rubbed polymer surfaces decreases with in

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Makhlouf, Salah A., F. T. Parker, F. E. Spada, and A. E. Berkowitz. "Magnetic anomalies in NiO nanoparticles." Journal of Applied Physics 81, no. 8 (1997): 5561–63. http://dx.doi.org/10.1063/1.364661.

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Tiwari, S. D., and K. P. Rajeev. "Magnetic properties of NiO nanoparticles." Thin Solid Films 505, no. 1-2 (2006): 113–17. http://dx.doi.org/10.1016/j.tsf.2005.10.019.

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ICHIYANAGI, Y. "Magnetic properties of NiO nanoparticles." Physica B: Condensed Matter 329-333 (May 2003): 862–63. http://dx.doi.org/10.1016/s0921-4526(02)02578-4.

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MISHRA, SUNIL K., and V. SUBRAHMANYAM. "SIZE-DEPENDENT MAGNETIZATION FLUCTUATIONS IN NiO NANOPARTICLES." International Journal of Modern Physics B 25, no. 18 (2011): 2507–24. http://dx.doi.org/10.1142/s0217979211100035.

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The finite size and surface roughness effects on the magnetization of NiO nanoparticles is investigated. A large magnetic moment arises for an antiferromagnetic nanoparticle due to these effects. The magnetic moment without the surface roughness has a nonmonotonic and oscillatory dependence on R, the size of the particles, with the amplitude of the fluctuations varying linearly with R. The geometry of the particle also matters a lot in the calculation of the net magnetic moment. An oblate spheroid shape particle shows an increase in net magnetic moment by increasing oblateness of the particle.

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Refat, Moamen S., Soha F. Mohamed, Tariq A. Altalhi, Safyah B. Bakare, and Ghaferah H. Al-Hazmi. "In situ thermal decomposition route: Preparation and characterization of nano nickel, cobalt, and copper oxides using an aromatic amine complexes as a low-cost simple precursor." Polish Journal of Chemical Technology 23, no. 2 (2021): 47–53. http://dx.doi.org/10.2478/pjct-2021-0016.

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Abstract The main interest now is the development of metallic or inorganic-organic compounds to prepare nanoparticle materials. The use of new compounds could be beneficial and open a new method for preparing nanomaterials to control the size, shape, and size of the nanocrystals. In this article, the thermal decomposition of [M2(o-tol)2(H2O)8] Cl4 (where o-tol is ortho-tolidine compound, M = Ni2+, Co2+, Cu2+) new precursor complex was discussed in solid-state conditions. The thermal decomposition route showed that the synthesized three complexes were easily decomposed into NiO, Co3O4 and CuO n

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