Preparation of ZnO Nanoparticles with High Dispersibility Based on Oriented Attachment (OA) Process

Cao, Dingding; Gong, Shuili; Shu, Xugang; Zhu, Dandan; Liang, Shengli

doi:10.1186/s11671-019-3038-3

Cited by 110 publications

(67 citation statements)

References 48 publications

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“…It must be noted that this was common because the particle may be made up of several different crystallites. The structural morphology findings are in accordance to literature [45,46].…”

Section: Physicochemical Characterizationssupporting

confidence: 91%

Synthesis, characterization, and intraperitoneal biochemical studies of zinc oxide nanoparticles in Rattus norvegicus

et al. 2020

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In the present work, zinc oxide nanoparticles (ZnO-NPs) were synthesized in the presence of poly(ethylene glycol) which is a biocompatible agent in living systems. The sub-chronic effects of ZnO-NPs were investigated based on biochemical parameters and histological changes applied to Rattus norvegicus. The structural, morphology, and size characterization of nanoparticles were studied by applying techniques as XRD, SEM, FTIR, and TEM. 8-week intraperitoneal injection of ZnO-NPs at a dose of 100 mg/kg leads to significant changes in liver enzymes, malondialdehyde (MDA) content, and tissue histopathological changes. The animal group which was treated with 50 mg/kg of ZnO-NPs presented elevated blood urea nitrogen and creatinine levels, but the liver enzymes and liver histopathology were found to be in normal level. The rats exposed to increasing dose of ZnO-NPs (100 mg/kg) showed necrosis of germinal epithelium and sertoli cells in the seminiferous tubules. The current study clearly demonstrated the dose-dependent toxicity of zinc oxide nanoparticles.

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“…It must be noted that this was common because the particle may be made up of several different crystallites. The structural morphology findings are in accordance to literature [45,46].…”

Section: Physicochemical Characterizationssupporting

confidence: 91%

Synthesis, characterization, and intraperitoneal biochemical studies of zinc oxide nanoparticles in Rattus norvegicus

et al. 2020

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“…This is indicated by a substantial hydrodynamic diameter as determined by the Dynamic Light Scattering (DLS) measurements and further supported by the low zeta potential values (Supplementary Information Table S1). Similarly to results of Kim et al 79 , Liu et al 80 , Lizunova et al 81 , Cao et al 82 the NPs TEM sizes are significantly smaller than those of DLS and suggest soft, dynamic character of micelle aggregation which could easily adopt to pore diameter in the root surfaces and cell walls.…”

Section: Discussionsupporting

confidence: 75%

Additive interactions of nanoparticulate ZnO with copper, manganese and iron in Pisum sativum L., a hydroponic study

Skiba

Michlewska

Pietrzak

et al. 2020

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Widespread occurrence of ZnO nanoparticles in environment follows the growing number of applications either in technology or agriculture. The impact of five forms of nanoparticulate ZnO on copper, manganese and iron uptake by Pisum sativum L. cultivated in Hoagland solutions was investigated. Plants were collected after twelve days of zinc administration. Effect of bulk ZnO has also been studied. Initial zinc concentration was 100 mg L −1. Nanoparticles were characterized by the transmission electron Microscopy, Dynamic Light Scattering and Zeta potential measurements. Metal contents were analyzed using the Atomic Absorption Spectrometry with flame atomization for samples digested in a microwave closed system. Analysis of variance indicated that zinc species at either molecular or nanoscale levels altered Cu, Mn and Fe uptake and their further transport in pea plants. In particular, significant reduction of Mn and Fe combined with the Cu increase was observed. Additive interactions originated by nanoparticles affect the heavy metals uptake and indicate pollutants migration pathways in plants. Unfortunately, regulations for the plant cultivation were formulated when anthropogenic nanoparticles were not in common use. they underestimate complexity of metals interactions in either plant or habitat. Our results indicate that these additive interactions cannot be neglected and deserve further investigations. Green pea (Pisum sativum L.) is one of the most extensively cultivated grain legumes worldwide. Plants are well adapted to diverse soil zones in either cool or mild climatic regions 1. Their seeds are rich in proteins, carbohydrates, dietary fibers, vitamins as well as minerals and are commonly used as vegetable or important protein source. The latter is of particular relevance when animal feed is concerned 2. The global production of pea is steadily growing as indicated by the projected Compound Annual Growth Rate (CAGR) of 5.9% and has approached 20 million tonnes in 2018 3. Pea genetics was thoroughly studied and in combination with better plant breeding methods has led to variety of improved plant species 4. Nowadays, pea is an important non model plant widely used in applied system biology studies 5. The pea genome has not been completely determined as yet. Nevertheless, it is being frequently applied as a model plant with the almost complete transcript coverage 6. The impact of nanoparticles (NPs) on plants physiology and their nutritional quality is usually assessed using two leading methodologies as presented by Jośko and Oleszczuk 7. Initially, the long-term growth in soils supplemented with representative concentrations of investigated nanoparticles was applied 8,9. Nowadays, the soilless plant cultivation is gaining increasing popularity 10. Hydroponic techniques promote plant growth in nutrient solutions. Their usage by far exceeds the laboratory scale and they have found numerous applications in commercial crop production 11. Several advantages of hydroponic cultures are highly appreciated, i.e. the s...

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“…This can be explained by the longer reaction time (18 h) used for the synthesis of Mn-doped ZnO-NCs by the sol-gel method. As reported previously, increasing the reaction time may affect size or shape of NCs and change their surface structure, resulting in self-aggregation by oriented attachment of the nanoparticles [34,35]. We can assume that the surface properties of the Mn-doped samples synthesized by the sol-gel technique are not optimal in the used reaction condition, inducing heavy aggregation of the nanoparticles.…”

Section: Morphological and Structural Characterizationmentioning

confidence: 80%

Facile Chemical Synthesis of Doped ZnO Nanocrystals Exploiting Oleic Acid

et al. 2020

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Zinc oxide nanocrystals (ZnO-NCs) doped with transition metal elements or rare earth elements can be probed for magnetic resonance imaging to be used as a molecular imaging technique for accurate diagnosis of various diseases. Herein, we use Mn as a candidate of transition metal elements and Gd as a presenter of rare earth elements. We report an easy and fast coprecipitation method exploiting oleic acid to synthesize spherical-shaped, small-sized doped ZnO-NCs. We show the improved colloidal stability of oleate-stabilized doped ZnO-NCs compared to the doped ZnO-NCs synthesized by conventional sol–gel synthesis method, i.e., without a stabilizing agent, especially for the Mn dopant. We also analyze their structural, morphological, optical, and magnetic properties. We are able to characterize the persistence of the crystalline properties (wurtzite structure) of ZnO in the doped structure and exclude the formation of undesired oxides by doping elements. Importantly, we determine the room-temperature ferromagnetism of the doped ZnO-NCs. This oleate-stabilized coprecipitation method can be subjected as a standard procedure to synthesize doped and also co-doped ZnO-NCs with any transition metal elements or rare earth elements. In the future, oleate-stabilized Gd/Mn-doped ZnO-NCs can be exploited as magnetic resonance imaging (MRI) contrast agents and possibly increase the signal intensity on T1-weighted images or reduce the signal intensity on T2-weighted images.

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Preparation of ZnO Nanoparticles with High Dispersibility Based on Oriented Attachment (OA) Process

Cited by 110 publications

References 48 publications

Synthesis, characterization, and intraperitoneal biochemical studies of zinc oxide nanoparticles in Rattus norvegicus

Synthesis, characterization, and intraperitoneal biochemical studies of zinc oxide nanoparticles in Rattus norvegicus

Additive interactions of nanoparticulate ZnO with copper, manganese and iron in Pisum sativum L., a hydroponic study

Facile Chemical Synthesis of Doped ZnO Nanocrystals Exploiting Oleic Acid

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