scholarly journals Determination of zinc oxide nanoparticles toxicity in root growth in wheat (Triticum aestivumL.) seedlings

2016 ◽  
Vol 67 (3) ◽  
pp. 286-296 ◽  
Author(s):  
Meppaloor G. Prakash ◽  
Ill Min Chung
Keyword(s):  
Zinc Oxide ◽  
Root Growth ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Nanoparticles Toxicity

Determination of the bioavailability of zinc oxide nanoparticles using ICP-AES and associated toxicity

2020 ◽  
Vol 188 ◽  
pp. 110767 ◽  
Author(s):  
Sudhakaran S ◽  
Athira SS ◽  
Suresh Babu S ◽  
Varma HK ◽  
Mohanan PV
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles

scholarly journals Utility of Zinc Oxide Nanoparticles Catalytic Activity in the Electrochemical Determination of Minocycline Hydrochloride

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2505
Author(s):  
Amal M. Al-Mohaimeed ◽  
Wedad A. Al-Onazi ◽  
Maha F. El-Tohamy
Keyword(s):  
Zinc Oxide ◽  
Metal Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Metal Oxide Nanoparticles ◽  
Electrochemical Determination ◽  
Electrochemical Sensing ◽  
Oxide Nanoparticles ◽  
Regression Equations ◽  
Minocycline Hydrochloride

The current work described the synthesis and characterization of zinc oxide nanoparticles (ZnONPs) and their electrocatalytic activity in the determination of minocycline hydrochloride (MCL). The unique features of metal oxide nanoparticles such as zinc oxide encourage the researchers to investigate the activity of metal oxide nanoparticles as remarkable semiconductor materials active in the electrochemical sensing determination. Herein, the suggested study displayed a comparative determination of minocycline hydrochloride using two conventional and modified ZnONPs-coated wire sensors. The recorded results showed the linear behavior of the enriched ZnONPs sensor over the 1.0 × 10−10–1.0 × 10−2 mol L−1 with respect to 1.0 × 10−6–1.0 × 10−2 mol L−1 for the conventional sensor. The two sensors are working in the pH range of 3–5 with regression equations EmV = (53.2 ± 0.5) log [MCL] + 448.8 and EmV = (58.7 ± 0.2) log [MCL] + 617.76 for conventional and enriched ZnONPs, respectively. The correlation coefficients were 0.9995 and 0.9998 for the previously mentioned sensors, respectively. The validity of the suggested analytical method was evaluated according to the recommended guidelines for methodology and drug analysis. The developed sensors were also used in the quantification of MCL in commercial formulations.

The use of radioactive zinc oxide nanoparticles in determination of their tissue concentrations following intravenous administration in mice

The Analyst ◽  
2010 ◽  
Vol 135 (7) ◽  
pp. 1742 ◽  
Author(s):  
Jen-Kun Chen ◽  
Mei-Hui Shih ◽  
Jinn-Jer Peir ◽  
Chih-Hui Liu ◽  
Fong-In Chou ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Intravenous Administration ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Tissue Concentrations ◽  
Radioactive Zinc

Chitosan–Zinc Oxide Nanoparticles Combined with Dispersive Liquid–Liquid Microextraction for the Determination of BTEX in Water Samples

2015 ◽  
Vol 68 (3) ◽  
pp. 481 ◽  
Author(s):  
Mostafa Khajeh ◽  
Leyla Azarsa ◽  
Mansoureh Rakhshanipour
Keyword(s):  
Zinc Oxide ◽  
Water Samples ◽  
Zinc Oxide Nanoparticles ◽  
Solid Phase ◽  
Oxide Nanoparticles ◽  
Flame Ionization ◽  
Relative Standard ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

In this study, chitosan–zinc oxide nanoparticles were used as an adsorbent matrix for solid-phase extraction and combined with dispersive liquid–liquid microextraction (SPE–DLLME) for determination of benzene, toluene, ethylbenzene, and xylene isomers (BTEX) in water samples. The eluent of SPE was used as the dispersive solvent of the DLLME for further purification and enrichment of the BTEX prior to gas chromatography-flame ionization detector analysis. The effect of variables, including amount of adsorbent, sample and eluent flow rate, type and volume of extraction and dispersive solvent, salt concentration, and extraction time, was investigated and they were optimized. Under the optimum conditions, good linearity for all BTEX with determination coefficients in the range of 0.9993 < r2 < 0.9997, suitable precision (1.4 % < RSD <1.9 %; where RSD refers to relative standard deviation), and low detection limits (0.5–1.1 µg L–1) were achieved. The current chitosan–zinc oxide nanoparticles SPE–DLLME procedure combines the advantages of SPE and DLLME, and was applied for determination of BTEX in water samples and acceptable recoveries were obtained.

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