Zinc oxide nanorod biosensor for detection of Alpha Feto Protein in blood serum

2015 ◽  
pp. 391-396
Keyword(s):  
Zinc Oxide ◽  
Blood Serum ◽  
Alpha Feto Protein

Effects of Dietary Supplementation of Zinc Oxide and Zinc Methionine on Layer Performance, Egg Quality, and Blood Serum Indices

2017 ◽  
Vol 184 (2) ◽  
pp. 456-462 ◽  
Author(s):  
Mohamed E. Abd El-Hack ◽  
Mahmoud Alagawany ◽  
Ayman S. Salah ◽  
Mervat A. Abdel-Latif ◽  
Mohamed F. A. Farghly
Keyword(s):  
Zinc Oxide ◽  
Blood Serum ◽  
Egg Quality ◽  
Dietary Supplementation ◽  
Zinc Methionine

scholarly journals The Effects of Pentoxifylline on Memory in Male Rats Treated with Zinc Oxide NPs

2021 ◽  
Vol 25 (1) ◽  
pp. 1-10
Author(s):  
Niloufar Darbandi ◽  
◽  
Zeynab Vasheghani Farahani ◽  
Hamidreza Momeni ◽  
◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Zinc Oxide ◽  
Treatment Group ◽  
Blood Serum ◽  
Zinc Oxide Nanoparticles ◽  
Male Rats ◽  
Control Group ◽  
Oxide Nanoparticles ◽  
Zno Nps ◽  
Ca1 Region

Background: Zinc oxide Nanoparticles (NPs) present irreversible effects on the nervous system, memory, and learning. Objective: The current study aimed to investigate the effects of pentoxifylline on memory impairments, CA1 hippocampal pyramidal cells, and blood serum antioxidant enzymes in male rats treated with zinc oxide NPs. Methods: Male Wistar rats were divided into the control, zinc oxide NPs (1.25 mg/kg), pentoxifylline (50 mg/kg), and pentoxifylline with zinc oxide NPs groups. In all study groups, saline, zinc oxide NPs, and pentoxifylline were intraperitoneally injected 30 minutes before training. In the co-treatment group, pentoxifylline was injected one hour before injecting Zno NPs. After performing the behavioral test, the tested animals’ brains were fixed and the number of healthy neurons in the CA1 region of the hippocampus was counted. In all research groups, malondialdehyde levels, total antioxidant power, superoxide dismutase levels, and glutathione peroxidase in blood serum were measured. Results: Zinc oxide nanoparticles decreased memory and the number of healthy neurons in the CA1 region of the hippocampus and increased oxidative stress in blood serum, compared to the controls. In the co-treatment group, using pentoxifylline improved the above-mentioned factors and reached the level of the control group. Pentoxifylline alone presented no significant effect on the aforementioned characteristics, compared to the control group. Conclusion: ZnO NPs may decrease memory retrieval and cause cell death in the pyramidal neurons of the CA1 region of the hippocampus by increasing oxidative stress. Pentoxifylline, as a potent antioxidant, can prevent the harmful effects of ZnO NPs.

scholarly journals The zinc requirements of broiler chicks and turkey poults fed on purified diets

1984 ◽  
Vol 51 (3) ◽  
pp. 467-477 ◽  
Author(s):  
W. A. Dewar ◽  
J. N. Downie
Keyword(s):  
Zinc Oxide ◽  
Blood Serum ◽  
Bone Development ◽  
Live Weight ◽  
Mortality Rates ◽  
Broiler Chicks ◽  
Maximal Concentration ◽  
Turkey Poults ◽  
Low Concentrations ◽  
Zn Concentration

1. Chicks and turkey poults were fed for 3 weeks on low-zinc diets, prepared from purified ingredients, supplemented with zinc oxide at graded levels.2. Birds of both species given the unsupplemented basal diets grew poorly, with high mortality rates. All had severe hyperkeratosis but bone development was normal. Only when birds received diets with low concentrations of added Zn were leg abnormalities observed.3. Zn requirements were assessed visually from dose-response graphs. The chick required 18 mg Zn/kg diet for maximal live weight and 24 mg Zn/kg for maximal Zn concentration in blood serum. The responses of tibial Zn and net retention of Zn did not reach plateaux within the range of dietary Zn concentrations studied. The turkey poult's Zn requirement for maximal live weight was 25 and 28–29 mg/kg for net retention of Zn and for maximal concentration of Zn in blood plasma and in the tibia; 41 mg Zn/kg diet was required for maximal Zn in blood serum.4. Liver Zn was not correlated with dietary Zn in either species.

Extraction and identification of fillers and pigments from pyrolyzed rubber and tire samples

1996 ◽  
Vol 54 ◽  
pp. 174-175
Author(s):  
P. Sadhukhan ◽  
J. B. Zimmerman
Keyword(s):  
Zinc Oxide ◽  
Electron Microscope ◽  
Carbon Black ◽  
Natural Rubber ◽  
Transmission Electron Microscope ◽  
Rolling Resistance ◽  
Synthetic Polymers ◽  
Nitrogen Atmosphere ◽  
Transmission Electron ◽  
Curing Agents

Rubber stocks, specially tires, are composed of natural rubber and synthetic polymers and also of several compounding ingredients, such as carbon black, silica, zinc oxide etc. These are generally mixed and vulcanized with additional curing agents, mainly organic in nature, to achieve certain “designing properties” including wear, traction, rolling resistance and handling of tires. Considerable importance is, therefore, attached both by the manufacturers and their competitors to be able to extract, identify and characterize various types of fillers and pigments. Several analytical procedures have been in use to extract, preferentially, these fillers and pigments and subsequently identify and characterize them under a transmission electron microscope.Rubber stocks and tire sections are subjected to heat under nitrogen atmosphere to 550°C for one hour and then cooled under nitrogen to remove polymers, leaving behind carbon black, silica and zinc oxide and 650°C to eliminate carbon blacks, leaving only silica and zinc oxide.

Analysis of Sputtered Zinc Oxide Films

1980 ◽  
Vol 38 ◽  
pp. 416-417
Author(s):  
T. A. Emma ◽  
M. P. Singh
Keyword(s):  
Electron Microscopy ◽  
Zinc Oxide ◽  
Piezoelectric Materials ◽  
Oxide Films ◽  
Optical Quality ◽  
Zno Films ◽  
Rf Power ◽  
X Ray Diffraction ◽  
Sputtered Films ◽  
Zinc Oxide Films

Optical quality zinc oxide films have been characterized using reflection electron diffraction (RED), replication electron microscopy (REM), scanning electron microscopy (SEM), and X-ray diffraction (XRD). Significant microstructural differences were observed between rf sputtered films and planar magnetron rf sputtered films. Piezoelectric materials have been attractive for applications to integrated optics since they provide an active medium for signal processing. Among the desirable physical characteristics of sputtered ZnO films used for this and related applications are a highly preferred crystallographic texture and relatively smooth surfaces. It has been found that these characteristics are very sensitive to the type and condition of the substrate and to the several sputtering parameters: target, rf power, gas composition and substrate temperature.

Concentration of selected micro-nutrients in saliva among women in menopausal period treated with hormone replacement therapy

2013 ◽  
Vol 22 (01) ◽  
pp. 46-51
Author(s):  
M. Rahnama ◽  
I. Jastrzêbska-Jamrogiewicz ◽  
R. Jamrogiewicz
Keyword(s):  
Bone Mineral Density ◽  
Hormone Replacement Therapy ◽  
Blood Serum ◽  
Replacement Therapy ◽  
Hormone Replacement ◽  
Surgical Removal ◽  
Femoral Bone ◽  
Mineral Density ◽  
Natural Menopause ◽  
Copper Zinc

Summary Objective: The aim of this study was to observe the variability of the level of copper, zinc and manganese in saliva amongst women with hypoestrogenia, treated and untreated with hormone replacement therapy (HRT). Methods: The study was conducted on a group of 60 women treated and untreated with HRT. Half of the patients were after natural menopause and other half was after surgical removal of ovaries. Research on micronutrients in non-stimulated saliva and blood serum was carried out in 2005. Tests on saliva were repeated in 2010. Investigation of bone mineral density (BMD) of femoral bone was performed in year 2010. Results: Statistical analysis of concentration of copper and zinc revealed a linear correlation between the levels of these microelements in blood serum and saliva. The study revealed that HRT has a beneficial effect on BMD and the concentration of copper and manganese in saliva and blood serum of patients after the menopause. Patients treated with HRT showed higher BMD values than groups not treated with hormones. Conclusions: Saliva appears to be a promising diagnostic material which can be used to analyze the content of trace elements, but further research should be carried out on a broader research group.

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