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Journal articles on the topic 'ZnO NPs'

Author: Grafiati

Published: 11 September 2023

Last updated: 25 July 2025

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1

Ivanova, Iliana A., Elitsa L. Pavlova, Aneliya S. Kostadinova, et al. "Investigation of Biological and Prooxidant Activity of Zinc Oxide Nanoclusters and Nanoparticles." Acta Chimica Slovenica 69, no. 3 (2022): 722–33. http://dx.doi.org/10.17344/acsi.2021.7337.

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Zinc oxide (ZnO) nanomaterials offer some promising antibacterial effects. In this study, a new form of ZnO is synthesized, named ZnO nanocluster bars (NCs). Herein, ZnO NCs, ZnO nanoparticles (NPs), ZnO coated with silica (ZnOSiOA, ZnO-SiOB), and SiO2 NPs were prepared, characterized, and their antimicrobial and prooxidant activity were tested. The prooxidant activity of all nanomaterials was studied according to free-radical oxidation reactions (pH 7.4 and pH 8.5) in chemiluminescent model systems. Each form of new synthesized ZnO nanomaterials exhibited a unique behavior that varied from mi

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Yang, Yuran, Can Zhang, Kaili Li, and Zhenlun Li. "Fe2+ Alleviated the Toxicity of ZnO Nanoparticles to Pseudomonas tolaasii Y-11 by Changing Nanoparticles Behavior in Solution." Microorganisms 9, no. 11 (2021): 2189. http://dx.doi.org/10.3390/microorganisms9112189.

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The negative effect of ZnO nanoparticles (ZnO-NPs) on the biological removal of nitrate (NO3−) has received extensive attention, but the underlying mechanism is controversial. Additionally, there is no research on Fe2+ used to alleviate the cytotoxicity of NPs. In this paper, the effects of different doses of ZnO-NPs on the growth and NO3− removal of Pseudomonas tolaasii Y-11 were studied with or without Fe2+. The results showed that ZnO-NPs had a dose-dependent inhibition on the growth and NO3− removal of Pseudomonas tolaasii Y-11 and achieved cytotoxic effects through both the NPs themselves

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3

Li, Junlin, Xiangfei Li, Dong Liang, Xiaojuan Zhang, Qing Lin, and Lingyun Hao. "Preparation and Antibacterial Performances of Electrocatalytic Zinc Oxide Nanoparticles with Diverse Morphologies." Journal of Biomedical Nanotechnology 17, no. 9 (2021): 1824–29. http://dx.doi.org/10.1166/jbn.2021.3144.

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This study exploits the potential of zinc oxide nanoparticles (ZnO-NPs) with diverse morphologies as catalysts and antibacterial agent. Spherical ZnO-NPs, rod-shaped ZnO-NPs and flower-shaped ZnO-NPs were prepared by microemulsion method, solvent heat method and hydrothermal method, respectively. The structural characterizations of samples were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. XRD results revealed the formation of spherical ZnO-NPs, rod-shaped ZnO-NPs and flower-shaped ZnO-NPs were all wurtzite crystal structure. SEM results showed that

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4

Bhanoojo, Noor Ali, Mohammad Younis Talpur, Sarfaraz Ahmed Mahesar, Syeda Sara Hassan, Ume Hanee Nadeem Ahmed, and Fatih Durmaz. "Green synthesis of ZnO/Fe3O4 nanoparticles with nigella sativa extract: Efficient degradation of methylene blue and antimicrobial properties." Mehran University Research Journal of Engineering and Technology 43, no. 4 (2024): 116. http://dx.doi.org/10.22581/muet1982.3145.

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Zinc oxide (ZnO), iron oxide (Fe3O4) NPs, and ZnO/Fe3O4 nanocomposites (NCs) were synthesized using Nigella sativa (NS) seed extracts. These nanomaterials (NMs) were characterized by multiple analytical techniques like UV-visible spectrophotometers, FTIR spectroscopy, SEM, and XRD spectroscopy. The UV-visible spectrum showed 364 nm, 330 nm, and 331nm for ZnO NPs, Fe3O4 NPs, and ZnO/Fe3O4 NCs, respectively. Moreover, it was confirmed when the samples were run through FTIR techniques, and it was observed that the availability of bioactive functional groups was involved in the decline of bulk com

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Larsen, Søren T., Emilie Da Silva, Jitka S. Hansen, Alexander C. Ø. Jensen, Ismo K. Koponen, and Jorid B. Sørli. "Acute Inhalation Toxicity After Inhalation of ZnO Nanoparticles: Lung Surfactant Function Inhibition In Vitro Correlates With Reduced Tidal Volume in Mice." International Journal of Toxicology 39, no. 4 (2020): 321–27. http://dx.doi.org/10.1177/1091581820933146.

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People can be exposed to zinc oxide (ZnO) by inhalation of consumer products or during industrial processes. Zinc oxide nanoparticle (NP) exposure can induce acute inhalation toxicity. The toxicological mechanisms underlying the acute effects on the lungs have long focused on the phagolysosomal dissolution of ZnO NPs in macrophages followed by the release of free Zn2+ ions. However, we postulate an alternative mechanism based on the direct interaction of ZnO NPs with the lung surfactant (LS) layer covering the inside of the alveoli. Therefore, we tested the effect of ZnO NPs and Zn2+ ions on t

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Alhujaily, Muhanad, Majid S. Jabir, Uday M. Nayef, et al. "Au/ZnO Nanocomposites Prepared by Laser Ablation for Enhancement of Antibacterial Activity and Cytotoxic Properties against Cancer Cells." Metals 13, no. 4 (2023): 735. http://dx.doi.org/10.3390/met13040735.

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This study presents a comprehensive look into the potential therapeutic, antibacterial, and anticancer properties of a nanocomposite (NC) of gold (Au) and zinc oxide (ZnO). In this study, we analyzed the adherence between Au nanoparticles (NPs) and ZnO NPs. X-ray diffraction analysis showed high crystallinity and small crystallite sizes of Au NPs and ZnO NPs, while transmission electron microscopy showed spherical NPs. Furthermore, histogram analysis showed that the average particle size of Au NPs is 27 nm, while that of ZnO NPs is 35 nm. The adherence of ZnO NPs on the surface of Au NPs incre

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Liang, Yan, Aili Simaiti, Mingxuan Xu, et al. "Antagonistic Skin Toxicity of Co-Exposure to Physical Sunscreen Ingredients Zinc Oxide and Titanium Dioxide Nanoparticles." Nanomaterials 12, no. 16 (2022): 2769. http://dx.doi.org/10.3390/nano12162769.

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Being the main components of physical sunscreens, zinc oxide nanoparticles (ZnO NPs) and titanium dioxide nanoparticles (TiO2 NPs) are often used together in different brands of sunscreen products with different proportions. With the broad use of cosmetics containing these nanoparticles (NPs), concerns regarding their joint skin toxicity are becoming more and more prominent. In this study, the co-exposure of these two NPs in human-derived keratinocytes (HaCaT) and the in vitro reconstructed human epidermis (RHE) model EpiSkin was performed to verify their joint skin effect. The results showed

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Scherzad, Agmal, Till Meyer, Norbert Kleinsasser, and Stephan Hackenberg. "Molecular Mechanisms of Zinc Oxide Nanoparticle-Induced Genotoxicity." Materials 10, no. 12 (2017): 1427. http://dx.doi.org/10.3390/ma10121427.

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Background: Zinc oxide nanoparticles (ZnO NPs) are among the most frequently applied nanomaterials in consumer products. Evidence exists regarding the cytotoxic effects of ZnO NPs in mammalian cells; however, knowledge about the potential genotoxicity of ZnO NPs is rare, and results presented in the current literature are inconsistent. Objectives: The aim of this review is to summarize the existing data regarding the DNA damage that ZnO NPs induce, and focus on the possible molecular mechanisms underlying genotoxic events. Methods: Electronic literature databases were systematically searched f

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Valdiglesias, Vanessa, Anabel Alba-González, Natalia Fernández-Bertólez, et al. "Effects of Zinc Oxide Nanoparticle Exposure on Human Glial Cells and Zebrafish Embryos." International Journal of Molecular Sciences 24, no. 15 (2023): 12297. http://dx.doi.org/10.3390/ijms241512297.

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Zinc oxide nanoparticles (ZnO NPs) are among the most widely used nanomaterials. They have multiple applications in cosmetics, textiles, paints, electronics and, recently, also in biomedicine. This extensive use of ZnO NPs notably increases the probability that both humans and wildlife are subjected to undesirable effects. Despite being among the most studied NPs from a toxicological point of view, much remains unknown about their ecotoxicological effects or how they may affect specific cell types, such as cells of the central nervous system. The main objective of this work was to investigate

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Gurugubelli, Thirumala Rao, R. V. S. S. N. Ravikumar, and Ravindranadh Koutavarapu. "Enhanced Photocatalytic Activity of ZnO–CdS Composite Nanostructures towards the Degradation of Rhodamine B under Solar Light." Catalysts 12, no. 1 (2022): 84. http://dx.doi.org/10.3390/catal12010084.

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A simple chemical precipitation route was utilized for the synthesis of ZnO nanoparticles (NPs), CdS NPs and ZnO–CdS nanocomposites (NCs). The synthesized nanostructures were examined for the crystal structure, morphology, optical properties and photodegradation activity of rhodamine B (RhB) dye. The ZnO–CdS NCs showed a mixed phase of hexagonal wurtzite structure for both ZnO NPs and CdS NPs. Pure ZnO NPs and CdS NPs possessed bandgaps of 3.2617 and 2.5261 eV, respectively. On the other hand, the composite nanostructures displayed a more narrow bandgap of 2.9796 eV than pure ZnO NPs. When com

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de la Rosa, Guadalupe, Martha Laura López-Moreno, David de Haro, Cristian E. Botez, José R. Peralta-Videa, and Jorge L. Gardea-Torresdey. "Effects of ZnO nanoparticles in alfalfa, tomato, and cucumber at the germination stage: Root development and X-ray absorption spectroscopy studies." Pure and Applied Chemistry 85, no. 12 (2013): 2161–74. http://dx.doi.org/10.1351/pac-con-12-09-05.

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Past reports indicate that some nanoparticles (NPs) affect seed germination; however, the biotransformation of metal NPs is still not well understood. This study investigated the toxicity on seed germination/root elongation and the uptake of ZnO NPs and Zn2+ in alfalfa (Medicago sativa), cucumber (Cucumis sativus), and tomato (Solanum lycopersicum) seedlings. Seeds were treated with ZnO NPs at 0&ndash;1600 mg L&ndash;1 as well as 0&ndash;250 mg L&ndash;1 Zn2+ for comparison purposes. Results showed that at 1600 mg L&ndash;1 ZnO NPs, germination in cucumber increased by 10 %

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Khan, Rizwan, Muhammad Inam, Du Park, et al. "Influence of Organic Ligands on the Colloidal Stability and Removal of ZnO Nanoparticles from Synthetic Waters by Coagulation." Processes 6, no. 9 (2018): 170. http://dx.doi.org/10.3390/pr6090170.

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The large-scale production and usage of zinc oxide nanoparticles (ZnO NPs) may lead to their post-release into the aquatic environment. In this study, the effect of hydrophobic/hydrophilic organic ligands on sorption and sedimentation of ZnO NPs has been systematically investigated. In addition, the coagulation efficiency of ZnO NPs, Zn2+, dissolved organic carbon (DOC), and UV254 with varying ferric chloride (FC) dosages in synthetic waters were also evaluated. The results showed that the higher concentration of organic ligands, i.e., humic acid (HA), salicylic acid (SA), and L-cysteine (L-cy

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13

Hazeem, Layla. "Single and Combined Toxicity Effects of Zinc Oxide Nanoparticles: Uptake and Accumulation in Marine Microalgae, Toxicity Mechanisms, and Their Fate in the Marine Environment." Water 14, no. 17 (2022): 2669. http://dx.doi.org/10.3390/w14172669.

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Recently, there has been rapid growth in the production of zinc oxide nanoparticles (ZnO-NPs) due to their applications in household and cosmetic products. Over the last decade, considerable research was conducted to reveal the effect of ZnO-NPs on microalgae, which form the base of the aquatic food chain. This review discusses the fate and behavior of ZnO-NPs in the marine environment. Predominately, the toxicity mechanism of ZnO-NPs on marine microalgae could be attributed to three sources: the release of Zn2+ ions; the interaction between ZnO-NPs and algae cells; and the generation of react

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MUNIR, T., A. MAHMOOD, M. KASHIF, et al. "IMPACT OF Ni DOPANT ON OPTICAL AND MAGNETIC PROPERTIES OF ZnO NANOPARTICLES FOR BIOMEDICAL APPLICATIONS." Journal of Ovonic Research 16, no. 3 (2020): 165–71. http://dx.doi.org/10.15251/jor.2020.163.165.

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In this work, Zn1-xNixO NPs with different concentration (x= 0.0, 0.03, 0.06 and 0.09) were synthesized by using co-precipitation method. The present study is related to investigate crystal structure, surface morphology, optical and magnetic behavior of pure and Ni dopant ZnO NPs. The hexagonal wurtzite structure and crystallite size (19.45 to 21.25 nm) was investigated by using XRD analysis.SEM and FTIR used to identify the surface morphology, stretching and vibrational modes of different functional groups (ZnO, OH, CO and H-O-H) attached on the spectrum of Ni dopant ZnO NPs. Moreover, the op

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15

Mahato, Achinta, Paresh Nath Chatterjee, Sougata Sarkar, et al. "Effects of Chemically and Green Synthesized Zinc Oxide Nanoparticles on Shelf Life and Sensory Quality of Minced Fish (Pangasius hypophthalmus)." Foods 13, no. 17 (2024): 2810. http://dx.doi.org/10.3390/foods13172810.

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The purpose of this study was to investigate the effect of chemically and green synthesized zinc oxide nanoparticles (ZnO-NPs) on the shelf life and sensory quality of fish meat. In this study, ZnO-NPs were synthesized by employing the colloidal chemistry (CZnO-NPs) and green synthesis (GZnO-NPs) methods, and they were also characterized to assess their morphology. The synthesized ZnO-NPs, ZnO, and zinc acetate (ZnA) were used for the preservation and fortification of fish (Pangasius hypophthalmus) meat at 20 mg/kg of Zn. In a six-day storage study at 4 °C, the fish samples were evaluated for

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16

Mendoza-Milla, Criselda, Fernanda Isabel Macías Macías, Kimberly Abigail Velázquez Delgado, et al. "Zinc Oxide Nanoparticles Induce Toxicity in H9c2 Rat Cardiomyoblasts." International Journal of Molecular Sciences 23, no. 21 (2022): 12940. http://dx.doi.org/10.3390/ijms232112940.

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Zinc oxide nanoparticles (ZnO NPs) are widely used in the cosmetic industry. They are nano-optical and nano-electrical devices, and their antimicrobial properties are applied in food packaging and medicine. ZnO NPs penetrate the body through inhalation, oral, and dermal exposure and spread through circulation to various systems and organs. Since the cardiovascular system is one of the most vulnerable systems, in this work, we studied ZnO NPs toxicity in H9c2 rat cardiomyoblasts. Cardiac cells were exposed to different concentrations of ZnO NPs, and then the morphology, proliferation, viability

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17

Mohd Yusof, Hidayat, Nor’Aini Abdul Rahman, Rosfarizan Mohamad, Uswatun Hasanah Zaidan, and Anjas Asmara Samsudin. "Antibacterial Potential of Biosynthesized Zinc Oxide Nanoparticles against Poultry-Associated Foodborne Pathogens: An In Vitro Study." Animals 11, no. 7 (2021): 2093. http://dx.doi.org/10.3390/ani11072093.

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Since the emergence of multidrug-resistant bacteria in the poultry industry is currently a serious threat, there is an urgent need to develop a more efficient and alternative antibacterial substance. Zinc oxide nanoparticles (ZnO NPs) have exhibited antibacterial efficacy against a wide range of microorganisms. Although the in vitro antibacterial activity of ZnO NPs has been studied, little is known about the antibacterial mechanisms of ZnO NPs against poultry-associated foodborne pathogens. In the present study, ZnO NPs were successfully synthesized using Lactobacillus plantarum TA4, characte

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Wang, Mei M., Juan Wang, Rui Cao, Si Y. Wang, and Hua Du. "Natural Transformation of Zinc Oxide Nanoparticles and Their Cytotoxicity and Mutagenicity." Journal of Nanomaterials 2017 (2017): 1–12. http://dx.doi.org/10.1155/2017/8457960.

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With rapid development of the nanoindustry, studies focusing on the transformation of nanoparticles (NPs) are required to understand their stability and toxicity after being released into the environment. Here, we characterized the physicochemical properties of ZnO NPs and found that they are naturally alkalized in the presence of air (without the addition of exogenous alkaline substances). Energy dispersive X-ray/X-ray powder diffraction/Fourier transform infrared (EDX/XRD/FTIR)/Raman spectroscopy gave evidence for the formation of hydrozincite (Zn5(CO3)2(OH)6) and zinc hydroxide (Zn(OH)2). F

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Aklilu, Muluken, and Temesgen Aderaw. "Khat (Catha edulis) Leaf Extract-Based Zinc Oxide Nanoparticles and Evaluation of Their Antibacterial Activity." Journal of Nanomaterials 2022 (September 22, 2022): 1–10. http://dx.doi.org/10.1155/2022/4048120.

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In this study, we used khat (Catha edulis) leaf extract as a reducing and stabilizing agent for the biosynthesis of zinc oxide nanoparticles (ZnO NPs). The rapid color change of the solution to pale yellow and UV-visible absorption peak at 322 nm confirmed the initial formation of ZnO NPs. FTIR spectrum analysis revealed the contribution of khat leaf extract to the bioreduction of Zn2+ ions to ZnO NPs. The FTIR spectrum for the stretching vibration of ZnO at 480 cm-1 also confirms the formation of ZnO NPs. The XRD spectrum showed the crystallinity and the hexagonal wurtzite structure of ZnO NP

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Mohammed Nemma, Noorullah, and Zainab Sabeeh Sadeq. "Eco-Friendly Synthesis of Ag-ZnO Nanocomposite Using Aloe-vera, Hibiscus Sabdariffa Plants and Their Antibacterial and Anti-fungi Activities." Iraqi Journal of Physics 21, no. 4 (2023): 14–23. http://dx.doi.org/10.30723/ijp.v21i4.1136.

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The current study used extracts from the aloe vera (AV) plant and the hibiscus sabdariffa flower to make Ag-ZnO nanoparticles (NPs) and Ag-ZnO nanocomposites (NCs). Ag/ZnO NCs were compared to Ag NPs and ZnO NPs. They exhibited unique properties against bacteria and fungi that aren't present in either of the individual parts. The Ag-ZnO NCs from AV showed the best performance against E. coli, with an inhibition zone of up to 27 mm, compared to the other samples. The maximum absorbance peaks were observed at 431 nm and 410 nm for Ag NPs, at 374 nm and 377 nm for ZnO NPs and at 384 nm and 391 nm

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Dang, Thi Bich Hop, Van Cuong Nguyen, Quoc Thuan Hoang, et al. "Effect of the Ce3+ concentration on the crystallite structure and optical properties of ZnO nanomaterials synthesised by sol-gel method." Ministry of Science and Technology, Vietnam 65, no. 11 (2023): 63–68. http://dx.doi.org/10.31276/vjst.65(11).63-68.

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In this study, Ce3+-doped ZnO nanomaterials (Zn1-xO:xCe3+ NPs) were synthesised using the sol-gel method. X-ray diffraction (XRD) pattern and Raman spectra analysis showed that at 1% doping concentration, Zn2+ ions were replaced with Ce3+ ions in the ZnO lattice. However, at higher concentrations (3 and 5%), the CeO2 phase was formed, preventing the diffusion process of Ce3+ ions into the lattice. Field emission scanning electron microscopy (FESEM) images showed that the obtained material had a particle size of several tens of nanometers. X-ray energy dispersive (EDS) spectroscopy and EDS mapp

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C, Theivarasu, and Indumathi Thangavelu. "EFFECT OF CE3+ METAL IONS ON THE ANTIBACTERIAL AND ANTICANCER ACTIVITY OF ZINC OXIDE NANOPARTICLES PREPARED BY COPRECIPITATION METHOD." Asian Journal of Pharmaceutical and Clinical Research 10, no. 3 (2017): 388. http://dx.doi.org/10.22159/ajpcr.2017.v10i3.16350.

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ABSTRACTObjective: This study was undertaken to know about the antibacterial and anticancer activity of synthesized zinc oxide (ZnO) nanoparticles (NPs).Methods: The ZnO NPs and different concentration of Ce3+ (0.05M, 0.10M, and 0.15M)-doped ZnO NPs were synthesized by coprecipitation method.The synthesized nanoparticles were analyzed by X-ray diffraction (XRD) and HRSEM. The antibacterial studies were performed against a set ofbacterial strains as Gram-positive bacteria (Streptococcus aureus and Streptococcus pneumonia) and Gram-negative (Escherichia coli, Pseudomonasaeruginosa, Proteus vulga

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Blinov, Andrey V., Maksim D. Kachanov, Alexey A. Gvozdenko, et al. "Synthesis and Characterization of Zinc Oxide Nanoparticles Stabilized with Biopolymers for Application in Wound-Healing Mixed Gels." Gels 9, no. 1 (2023): 57. http://dx.doi.org/10.3390/gels9010057.

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A method for the synthesis of ZnO nanoparticles (ZnO NPs) gels was developed. ZnO NPs were obtained through a sol–gel method with zinc acetate usage as a precursor. Optimization of the method of synthesis of ZnO NPs gel has been carried out. It was observed that the most stable ZnO NPs gels are formed at room temperature, pH = 8 and molar concentration of zinc C(Zn2+) = 0.05–0.2 M. It was shown that the addition of polysaccharide significantly affects the rheological properties and microstructure of ZnO NPs gels. We found that the optimal polysaccharide for the synthesis of ZnO NPs gels is hyd

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jassim, Naeem K., and S. Asghar Khayatian. "Investigating the Antibacterial Properties of ZnO-NPs." International Journal of Research In Science & Engineering, no. 24 (July 30, 2022): 38–46. http://dx.doi.org/10.55529/ijrise.24.38.46.

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The size range of several hundred nanometers to several of micrometers contains a lot of microorganisms. The aim of the current report was to study the antibacterial properties of ZnO-NPs through a theoretical review of the most important findings in previous studies. The study found the most important antibacterial properties of ZnO-NPs, including: Strong antibacterial results can be achieved by enhancing variables such as UV light, zinc oxide particle size, concentration, shape, and surface modification, which affect many different toxicological processes. One of the main properties of ZnO-N

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Amara, S., I. Ben Slama, I. Mrad, et al. "Effects of zinc oxide nanoparticles and/or zinc chloride on biochemical parameters and mineral levels in rat liver and kidney." Human & Experimental Toxicology 33, no. 11 (2014): 1150–57. http://dx.doi.org/10.1177/0960327113510327.

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The aim of this study was to assess the potential subacute toxicity of zinc oxide (ZnO) nanoparticles (NPs) in Wistar rats in comparison with reference toxicant, zinc chloride (ZnCl2), of a non-nanoparticulate form. We therefore studied the relationships between zinc (Zn) accumulation, liver and kidney trace element levels, and plasmatic biochemical parameters. Rats in all groups were treated by intraperitoneal injection of ZnO NPs and/or ZnCl2 solution (25 mg/kg) every other day for 10 days. The contents of trace element in the liver and kidney were slightly modulated after ZnO NPs and/or ZnC

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Patrón-Romero, Leslie, Priscy Alfredo Luque-Morales, Verónica Loera-Castañeda, et al. "Mitochondrial Dysfunction Induced by Zinc Oxide Nanoparticles." Crystals 12, no. 8 (2022): 1089. http://dx.doi.org/10.3390/cryst12081089.

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The constant evolution and applications of metallic nanoparticles (NPs) make living organisms more susceptible to being exposed to them. Among the most used are zinc oxide nanoparticles (ZnO-NPs). Therefore, understanding the molecular effects of ZnO-NPs in biological systems is extremely important. This review compiles the main mechanisms that induce cell toxicity by exposure to ZnO-NPs and reported in vitro research models, with special attention to mitochondrial damage. Scientific evidence indicates that in vitro ZnO-NPs have a cytotoxic effect that depends on the size, shape and method of

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Cierech, Mariusz, Jacek Wojnarowicz, Adam Kolenda, et al. "Zinc Oxide Nanoparticles Cytotoxicity and Release from Newly Formed PMMA–ZnO Nanocomposites Designed for Denture Bases." Nanomaterials 9, no. 9 (2019): 1318. http://dx.doi.org/10.3390/nano9091318.

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The goal of the study was to investigate the level of zinc oxide nanoparticles (ZnO NPs) release from polymethyl methacrylate (PMMA)–ZnO nanocomposites (2.5%, 5%, and 7.5% w/w), as well as from the ZnO NPs layer produced on pure PMMA, and the impact of the achieved final ZnO NPs concentration on cytotoxicity, before the potential use as an alternative material for denture bases. The concentration of ZnO nanoparticles released to the aqueous solution of Zn2+ ions was assessed using optical emission spectrometry with inductively coupled plasma (ICP-OES). In the control group (pure PMMA), the rel

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Babayevska, Nataliya, Łucja Przysiecka, Grzegorz Nowaczyk, et al. "Fabrication of Gelatin-ZnO Nanofibers for Antibacterial Applications." Materials 14, no. 1 (2020): 103. http://dx.doi.org/10.3390/ma14010103.

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In this study, GNF@ZnO composites (gelatin nanofibers (GNF) with zinc oxide (ZnO) nanoparticles (NPs)) as a novel antibacterial agent were obtained using a wet chemistry approach. The physicochemical characterization of ZnO nanoparticles (NPs) and GNF@ZnO composites, as well as the evaluation of their antibacterial activity toward Gram-positive (Staphyloccocus aureus and Bacillus pumilus) and Gram-negative (Escherichia coli and Pseudomonas fluorescens) bacteria were performed. ZnO NPs were synthesized using a facile sol-gel approach. Gelatin nanofibers (GNF) were obtained by an electrospinning

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Qudsieh, Isam Y., Ibrahim M. Maafa, Ayman Yousef, Ahmed Abutaleb, Saleh M. Matar, and M. M. El-Halwany. "Efficient Hydrogen Production via Photodehydrogenation of Ammonia Borane Using Embedded CdO/ZnO Nanoparticles in Polyurethane Nanofibers." Polymers 17, no. 4 (2025): 443. https://doi.org/10.3390/polym17040443.

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The urgent global demand for sustainable green energy solutions has recognized hydrogen (H2) as a viable green energy carrier. This study explores the efficient production of H2 as a potential source of sustainable, environmentally friendly, high-energy-density fuel characterized by eco-friendly burning by-products. The research focuses on the photohydrolysis reaction of ammonia borane (AB), utilizing CdO-doped ZnO nanoparticles (NPs) embedded in polyurethane (PU) nanofibers (CdO/ZnO NPs@PU NFs) as a novel photocatalyst. Three different amounts of CdO/ZnO NPs were loaded onto PU NFs. The synth

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Badal, Kumar Mandal, and A. Kiran Kumar H. "Synthesis and characterization of ZnO and Al2O3 nanoparticles and their application in the chromium remediation studies." Journal of Indian Chemical Society Vol. 92, May 2015 (2015): 796–99. https://doi.org/10.5281/zenodo.5704135.

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Trace Elements Speciation Research Laboratory, School of Advanced Sciences, VIT University, Vellore-632 014, Tamilnadu, India <em>E-mail </em>: badalmandal@vit.ac.in Present work describes the synthesis of zinc oxide (ZnO) and aluminum oxide (Al<sub>2</sub>O<sub>3</sub> ) nanoparticles (NPs) by simple chemical reduction method. The synthesized NPs were characterized using XRD, AFM and SEM. Both ZnO and Al<sub>2</sub>O<sub>3</sub> NPs were used in the remediation studies to remove chromium(VI) from aqueous solution. Various process parameters such as pH, v/m ratio, contact time, initial concent

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Hu, Deming, Kun Chen, Liang Yang, et al. "Optimization of ZnO Nano Particles Preparation and Its Performance as Electron Transfer Layer in Quantum Light-Emitting Diode." Journal of Nanoelectronics and Optoelectronics 17, no. 1 (2022): 56–62. http://dx.doi.org/10.1166/jno.2022.3169.

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In this paper, different diameters ZnO Nano Particles (ZnO NPs) are prepared through wet chemistry method. The size effects on Quantum light-emitting diodes (QLED) performance are investigated. In addition, the influences of reaction temperature, reaction time and reactant ratio on ZnO size and performance of QLED are also studied. Transmission electron microscope (TEM), Ultraviolet-Visible spectroscopy (UV-Vis) absorption spectra and photoluminescence (PL) spectra are employed to analyze the influence of preparation conditions on optical properties of the ZnO NPs packaged QLED. The results sh

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Khan, Rizwan, Muhammad Inam, Muhammad Iqbal, et al. "Removal of ZnO Nanoparticles from Natural Waters by Coagulation-Flocculation Process: Influence of Surfactant Type on Aggregation, Dissolution and Colloidal Stability." Sustainability 11, no. 1 (2018): 17. http://dx.doi.org/10.3390/su11010017.

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The zinc oxide nanoparticles (ZnO NPs) and surfactants that are widely used in commercial and industrial products lead to the likelihood of their co-occurrence in natural water, making it essential to investigate the effect of surfactants on the fate and mobility of ZnO NPs. The present study seeks to elucidate the effect of an anionic sodium dodecyl sulfate (SDS) and a nonionic nonylphenol ethoxylate (NPEO), on ZnO NPs adsorption, aggregation, dissolution, and removal by the coagulation process. The results indicate that the presence of SDS in ZnO NPs suspension significantly reduced the ζ-po

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Sathiya, S. M., Gunadhor S. Okram, S. Maria Dhivya, Subramanian Mugesh, Maruthamuthu Murugan, and M. A. Jothi Rajan. "Synergistic Bactericidal Effect of Chitosan/Zinc Oxide Based Nanocomposites Against Staphylococcus aureus." Advanced Science Letters 24, no. 8 (2018): 5537–42. http://dx.doi.org/10.1166/asl.2018.12144.

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The biocompatible Chitosan/Zinc oxide (CS/ZnO) nanocomposites (NCs) material was synthesized via a simple and versatile microwave assisted wet synthesis method. After the incorporation of CS in the ZnO nanoparticles (NPs), the crystalline structure of the modified NPs was retained in the NCs and it was clearly exposed in the X-ray diffraction (XRD) measurements. The Zeta potential measurement of CS/ZnO nanocomposites (NCs) shows more stability than ZnO NPs. The Field Emission Scanning Electron Microscopy (FE-SEM) measurements depict the formation of cauliflower like structure after the integra

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Jiménez, Adriana Berenice Pérez, Carlos Alberto Huerta Aguilar, Jorge Manuel Vázquez Ramos, and Pandiyan Thangarasu. "Synergistic Antibacterial Activity of Nanohybrid Materials ZnO–Ag and ZnO–Au: Synthesis, Characterization, and Comparative Analysis of Undoped and Doped ZnO Nanoparticles." Australian Journal of Chemistry 68, no. 2 (2015): 288. http://dx.doi.org/10.1071/ch14123.

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ZnO nanoparticles (NPs) were prepared using the hydrothermal method, and then doped with Ag or Au NPs, yielding ZnO NPs, ZnO–Ag NPs, and ZnO–Au NPs, which were characterized by transmission electron microscopy, X-ray diffraction, and energy-dispersive X-ray spectroscopy. The synthesized nanomaterials were analyzed for their antibacterial properties against bacterial strains (Staphylococcus aureus, Bacillus cereus, Escherichia coli, and Salmonella typhi) by qualitative and quantitative assays. Minimal inhibitory concentration (MIC) results show that growth control is more effective for Gram-pos

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Branica, Gina, Marin Mladinić, Dario Omanović, and Davor Želježić. "An alternative approach to studying the effects of ZnO nanoparticles in cultured human lymphocytes: combining electrochemistry and genotoxicity tests." Archives of Industrial Hygiene and Toxicology 67, no. 4 (2016): 277–88. http://dx.doi.org/10.1515/aiht-2016-67-2910.

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Abstract Nanoparticle use has increased radically raising concern about possible adverse effects in humans. Zinc oxide nanoparticles (ZnO NPs) are among the most common nanomaterials in consumer and medical products. Several studies indicate problems with their safe use. The aim of our study was to see at which levels ZnO NPs start to produce adverse cytogenetic effects in human lymphocytes as an early attempt toward establishing safety limits for ZnO NP exposure in humans. We assessed the genotoxic effects of low ZnO NP concentrations (1.0, 2.5, 5, and 7.5 μg mL-1) in lymphocyte cultures over

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Nepal, Pujan, Sandhya Parajuli, Ganesh Prasad Awasthi, et al. "Eco-Friendly Synthesis of CuO@ZnO Nanocomposites Using Artemisia vulgaris Leaf Extract and Study of Its Photocatalytic Activity for Methylene Blue." Journal of Nanotechnology 2024 (May 29, 2024): 1–15. http://dx.doi.org/10.1155/2024/6896986.

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In this study, copper oxide nanoparticles (CuO NPs), zinc oxide nanoparticles (ZnO NPs), and copper oxide/zinc oxide nanocomposites (CuO@ZnO NPs) were synthesized by green synthetic route where bioactive compounds inherently present in the leaf extract of Artemisia vulgaris act as stabilizing and reducing agents. Phytochemicals present in leaf extract were assessed by qualitative chemical tests and spectroscopic measurements. UV-visible spectroscopy, Fourier Transform Infrared (FTIR) spectroscopy, Energy Dispersive X-ray (EDX) spectroscopy, X-ray Diffraction (XRD), and Field Emission Scanning

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Thuong, Nghiem Thi, Pham Ho Anh Tu, Dang Viet Hung, Cao Hong Ha, and Nguyen Han Long. "Modification of ZnO nanoparticles as an efficient activator for rubber vulcanization." Vietnam Journal of Chemistry 60, no. 6 (2022): 759–65. http://dx.doi.org/10.1002/vjch.202200036.

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AbstractIn the present work, ZnO nanoparticles (NPs) was modified with stearic acid (SA) to form ZnO‐SA and subsequently used as an activator for natural rubber vulcanization. Modified ZnO NPs were characterized by FTIR, X‐ray diffraction, SEM, and contact angle measurement. ZnO‐SA NPs were used in the vulcanization of natural rubber (NR) and compared with unmodified ZnO NPs. It was found that ZnO‐SA NPs decreased scorch time and activation energy of the vulcanization process compared to unmodified ZnO NPs. Mechanical performances of NR vulcanized with ZnO‐SA NPs and ZnO NPs were characterized

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Ahamed, Maqusood, Rashid Lateef, M. A. Majeed Khan, Pavan Rajanahalli, and Mohd Javed Akhtar. "Biosynthesis, Characterization, and Augmented Anticancer Activity of ZrO2 Doped ZnO/rGO Nanocomposite." Journal of Functional Biomaterials 14, no. 1 (2023): 38. http://dx.doi.org/10.3390/jfb14010038.

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Fabrication of ZnO nanoparticles (NPs) via green process has received enormous attention for its application in biomedicine. Here, a simple and cost-effective green route is reported for the synthesis of ZrO2-doped ZnO/reduced graphene oxide nanocomposites (ZnO/ZrO2/rGO NCs) exploiting ginger rhizome extract. Our aim was to improve the anticancer performance of ZnO/ZrO2/rGO NCs without toxicity to normal cells. The preparation of pure ZnO NPs, ZnO/ZrO2 NCs, and ZnO/ZrO2/rGO NCs was confirmed by transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X-ray

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Amin, Naweedullah, Syaizwan Zahmir Zulkifli, Mohammad Noor Amal Azmai, and Ahmad Ismail. "Toxicity of Zinc Oxide Nanoparticles on the Embryo of Javanese Medaka (Oryzias javanicus Bleeker, 1854): A Comparative Study." Animals 11, no. 8 (2021): 2170. http://dx.doi.org/10.3390/ani11082170.

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(1) Background: Zinc oxide nanoparticles (ZnO NPs) are widely applied in various human products. However, they can be extremely toxic for aquatic organisms, particularly fish. This research was conducted to determine the LC50 of ZnO NPs on the embryos of Javanese medaka (Oryzias javanicus) in ultra-pure, deionized, and dechlorinated tap water; (2) Methods: The experiments were conducted in a completely randomized design (CRD) with three replicates for six treatments for acute (0.100, 0.250, 0.500, 1.00, 5.00, and 10.00 mg/L) exposures for each type of water; (3) Results: The LC50 of ZnO NPs at

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Y. El-Sayed, Mohamed, Yasser A. El-Ossaily, I. M. Ahmed, Tamer H.A. Hasanin, Q. Mohsen, and Moamen S. Refat. "Synthesis and spectroscopic characterizations of zinc(II) oxide in nanosized range as a smart materials in treatment and recycling of wastewater." Bulletin of the Chemical Society of Ethiopia 39, no. 2 (2024): 257–70. http://dx.doi.org/10.4314/bcse.v39i2.6.

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The new reaction between zinc(II) chloride and glutaconic acid (C5H6O4) was studied. The results indicate the formation of zinc(II) glutaconate complex with a molar ratio of metal to organic ligand (glutaconic acid) of 2:1 with the general formula [Zn2(C5H4O4)(Cl)2(H2O)2].4H2O. The infrared spectrum of the glutaconate suggested that the two carboxylate groups are bidentate chelating. The current study uses a thermal breakdown approach to synthesize zinc oxide (ZnO) nanoparticles (NPs). The synthesized ZnO NPs were characterized using X-ray diffraction (XRD), scanning electron microscope (SEM),

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Okpara, Enyioma C., Omolola E. Fayemi, El-Sayed M. Sherif, Harri Junaedi, and Eno E. Ebenso. "Green Wastes Mediated Zinc Oxide Nanoparticles: Synthesis, Characterization and Electrochemical Studies." Materials 13, no. 19 (2020): 4241. http://dx.doi.org/10.3390/ma13194241.

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Zinc Oxide (ZnO) nanoparticles were prepared using a simple green synthesis approach in an alkaline medium, from three different extracts of citrus peels waste. The synthesized nano-crystalline materials were characterized by using ultraviolet-visible spectroscopy (UV-vis), x-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), energy-dispersive x-ray spectroscopy (EDS), environmental scanning electron microscopy (ESEM), and transmission electron microscopy (TEM). UV-vis analysis of the nanoparticles showed broad peaks around 360 nm for the ZnO NPs (Zinc oxide nanopart

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Komatsu, Setsuko, Kazuki Murata, Sayuri Yakeishi, et al. "Morphological and Proteomic Analyses of Soybean Seedling Interaction Mechanism Affected by Fiber Crosslinked with Zinc-Oxide Nanoparticles." International Journal of Molecular Sciences 23, no. 13 (2022): 7415. http://dx.doi.org/10.3390/ijms23137415.

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Nanoparticles (NPs) enhance soybean growth; however, their precise mechanism is not clearly understood. To develop a more effective method using NPs for the enhancement of soybean growth, fiber crosslinked with zinc oxide (ZnO) NPs was prepared. The solution of ZnO NPs with 200 nm promoted soybean growth at the concentration of 10 ppm, while fibers crosslinked with ZnO NPs promoted growth at a 1 ppm concentration. Soybeans grown on fiber cross-linked with ZnO NPs had higher Zn content in their roots than those grown in ZnO NPs solution. To study the positive mechanism of fiber crosslinked with

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Cyril, A., G. Senthamilselvan, A. Palanimurugan, and A. Dhanalakshmi. "ZnO AND ALKALINE EARTH METAL (Mg) DOPED ZnO NANOPARTICLES FOR ANTIBACTERIAL ACTIVITY, STRUCTURAL AND THERMAL STUDIES." Journal of Advanced Scientific Research 13, no. 03 (2022): 190–93. http://dx.doi.org/10.55218/jasr.202213329.

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The chemical co-precipitation method was used to prepare zinc oxide and magnesium doped ZnO nanoparticles (MgZnO NPs), and their structural, optical, thermal, and antibacterial properties were investigated. XRD spectra revealed that all synthesized NPs are hexagonal wurtzite structure and the size of ZnO and Mg-ZnO NPs is 51 and 42 nm. The FTIR spectra of ZnO and Mg-ZnO NPs have peaks at 463 and 470 cm-1 respectively. Mg-ZnO NPs have increased the thermal stability region from (177-288°C) to (198-296°C). ZnO NPs have high antibacterial activity against E. coli, whereas Mg-ZnO NPs have antibact

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FUJIHARA, JUNKO, HIDEKI HASHIMOTO, NAOKI NISHIMOTO, MIKI TONGU, and YASUHISA FUJITA. "COMPARISON OF THE IN VITRO CYTOTOXICITIES OF NITROGEN DOPED (p-TYPE) AND n-TYPE ZINC OXIDE NANOPARTICLES." Surface Review and Letters 25, no. 04 (2018): 1850084. http://dx.doi.org/10.1142/s0218625x18500841.

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The use of NPs in the health care field is increasing. Before their biological application, investigating the toxicities of both n-type ZnO nanoparticles (NPs) and nitrogen-doped (“p-type”) NPs is important. Using L929 cells, the cell viability, oxidative stress, apoptosis induction, inflammatory responses, and cellular uptake were assayed 24[Formula: see text]h after the addition of n-type ZnO NPs and nitrogen-doped NPs (which act as p-type) (25[Formula: see text][Formula: see text]g/mL). The ZnO NPs were fabricated using a gas evaporation method. Increased H2O2 generation and decreased level

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HAMOUDA, R. A., W. E. YOUSUF, A. B. ABEER MOHAMMED, D. B. DARWISH, and E. E. ABDEEN. "COMPARATIVE STUDY BETWEEN ZINC OXIDE NANOPARTICLES SYNTHESIZED BY CHEMICAL AND BIOLOGICAL METHODS IN VIEW OF CHARACTERISTICS, ANTIBACTERIAL ACTIVITY AND LOADING ON ANTIBIOTICS IN VITRO." Digest Journal of Nanomaterials and Biostructures 15, no. 1 (2020): 93–106. http://dx.doi.org/10.15251/djnb.2020.151.93.

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ZnO nanoparticles (ZnO-NPs) can be synthesized by chemical, physical and biological methods; many studies have indicated that biologically synthesized ZnO-NPs have ecofriendly benefits over physically and chemically synthesized ZnO-NPs. This study was carried out to evaluate the differences in characteristics and effects on pathogenic bacteria between ZnO-NPs synthesized by a chemical method and a biological method using the marine green alga Ulva fasciata. Additionally, the synergistic or antagonistic effects of loading ZnO-NPs synthesized by chemical and biological methods on antibiotics are

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Bautista-Diaz, Jaime, Oscar Cruz-Alvarez, Ofelia Adriana Hernández-Rodríguez, et al. "Zinc sulphate or zinc nanoparticle applications to leaves of green beans." Folia Horticulturae 33, no. 2 (2021): 365–75. http://dx.doi.org/10.2478/fhort-2021-0028.

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Abstract The green bean (Phaseolus vulgaris L.) is a very widely grown food crop that contributes significantly to human dietary needs in many countries due to its high content of protein. This study evaluates foliar applications of ZnSO4 versus that of zinc oxide nanoparticles (ZnO NPs) to leaves of the green bean cv. ‘Strike’ and records the plant responses in terms of Zn uptake and concentrations of photosynthetic pigments and bioactive compounds. The experiment was conducted under greenhouse conditions in Chihuahua, Mexico, with a completely randomised experimental design with 10 replicate

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ALMUSALLAM, AHMED HASHIM, AHMED MAHMOUD ISMAIL, and EMAN SAID ELSHEWY AND MONA E. ABD EL-GAWAD. "Green Synthesized Zinc Oxide Nanoparticles: Antifungal Activity against Powdery Mildew Disease of Pepper (Capsicum annuum L.) and Genotoxicity Potentials." BIOPESTICIDES INTERNATIONAL 20, no. 02 (2024): 193. https://doi.org/10.59467/bi.2024.20.193.

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Powdery mildew, caused by Leveillula taurica, anamorph Oidiopsis taurica, is one of the most serious diseases affecting pepper (Capsicum annuum) under greenhouses and open fields in Egypt. The current study aimed to investigate the relative antifungal activity of chemically synthesized Zinc oxide (ZnO)-nanoparticles (CS-ZnO NPs) and green synthesized Zinc oxide (ZnO)-nanoparticles (GS-ZnO NPs) against pepper powdery mildew under greenhouse conditions. A controlled precipitation technique was used to produce CS-ZnO NPs, and aqueous leaf extract of Hibiscus sabdariffa was used to produce GS-ZnO

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Wang, Yifan, Jing Lv, Guangyu Liu, et al. "ZnO NPs Impair the Viability and Function of Porcine Granulosa Cells Through Autophagy Regulated by ROS Production." Antioxidants 13, no. 11 (2024): 1295. http://dx.doi.org/10.3390/antiox13111295.

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The zinc oxide nanoparticles (ZnO NPs) is one of the most extensively utilized metal oxide nanoparticles in biomedicine, human food, cosmetics and livestock farming. However, growing evidence suggests that there is a potential risk for humans and animals because of the accumulation of ZnO NPs in cells, which leads to cell death through several different pathways. Nevertheless, the effects of ZnO NPs on porcine granulosa cells (PGCs) and how ZnO NPs regulate the follicular cells are unknown. In this study, we aimed to elucidate the role of ZnO NPs in the porcine ovary by using PGCs. Firstly, we

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Kang, Sang Gu, Kyung Eun Lee, Mahendra Singh, and Ramachandran Vinayagam. "Salicylic-Zinc Nanocomposites with Enhanced Antibacterial Activity." Coatings 13, no. 5 (2023): 941. http://dx.doi.org/10.3390/coatings13050941.

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Numerous infectious diseases and microorganisms with high drug resistance have motivated researchers to develop nanocomposite particles as antimicrobial agents. Herein, we report on nanocomposites of salicylic acid (SA) and 5-sulfosalicylic acid (5-SSA) with zinc oxide (ZnO), namely SA-ZnO and 5-SSA-ZnO nanoparticles (NPs), with antibacterial and cytotoxic properties. Ultraviolet-visible and Fourier-transform infrared spectroscopy of the synthesized SA-ZnO and 5-SSA-ZnO NPs indicated the functionalization of ZnO with SA and 5-SSA. X-ray diffraction revealed the crystalline structures of the sy

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Uresti-Porras, José-Gerardo, Marcelino Cabrera-De-La Fuente, Adalberto Benavides-Mendoza, Emilio Olivares-Sáenz, Raul I. Cabrera, and Antonio Juárez-Maldonado. "Effect of Graft and Nano ZnO on Nutraceutical and Mineral Content in Bell Pepper." Plants 10, no. 12 (2021): 2793. http://dx.doi.org/10.3390/plants10122793.

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The objective of this experiment was to evaluate the effects of grafting, zinc oxide nanoparticles (ZnO NPs), and their interaction on the nutritional composition of bell pepper plants. The treatments evaluated included grafted and non-grafted pepper plants with four concentrations of ZnO NPs (0, 10, 20, 30 mg L−1) applied to the foliage. The following parameters were evaluated: content of N, P, K+, Ca2+, Mg2+, Mn2+, Zn2+, Fe2+, Cu2+, total antioxidants, ascorbic acid, total phenols, glutathione, total proteins, fruit firmness, and total soluble solids. Grafting increased the content of N 12.2

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