The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform
Chen Wang - One of the best experts on this subject based on the ideXlab platform.
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sonochemical synthesis of silver nanorods by reduction of Sliver nitrate in aqueous solution
Ultrasonics Sonochemistry, 2010Co-Authors: Xikui Wang, Jingang Wang, Chen WangAbstract:Abstract The sonochemical synthesis of Sliver nanorods has been achieved by ultrasonic irradiation of the aqueous solution of Sliver nitrate, methenamine (HMTA) and poly (vinyl pyrrolidone) (PVP) for 60 min. The silver nanorods obtained have lengths of 4–7 μm and mean diameters of about 100 nm. The structures of the samples were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), selected area electron diffraction (SAED) and X-ray powder diffraction (XRD), and the chemical composition of the sample was examined by energy-dispersive X-ray spectrum (EDS). The effects of the irradiation time, the concentration of PVP and the reaction temperature on the morphology of silver nanorods were discussed, and the mechanism of the silver nanorods formation was tentatively inferred.
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sonochemical synthesis of silver nanorods by reduction of Sliver nitrate in aqueous solution
Ultrasonics Sonochemistry, 2010Co-Authors: Yuping Zhu, Xikui Wang, Jingang Wang, Weilin Guo, Chen WangAbstract:Abstract The sonochemical synthesis of Sliver nanorods has been achieved by ultrasonic irradiation of the aqueous solution of Sliver nitrate, methenamine (HMTA) and poly (vinyl pyrrolidone) (PVP) for 60 min. The silver nanorods obtained have lengths of 4–7 μm and mean diameters of about 100 nm. The structures of the samples were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), selected area electron diffraction (SAED) and X-ray powder diffraction (XRD), and the chemical composition of the sample was examined by energy-dispersive X-ray spectrum (EDS). The effects of the irradiation time, the concentration of PVP and the reaction temperature on the morphology of silver nanorods were discussed, and the mechanism of the silver nanorods formation was tentatively inferred.
Xikui Wang - One of the best experts on this subject based on the ideXlab platform.
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sonochemical synthesis of silver nanorods by reduction of Sliver nitrate in aqueous solution
Ultrasonics Sonochemistry, 2010Co-Authors: Xikui Wang, Jingang Wang, Chen WangAbstract:Abstract The sonochemical synthesis of Sliver nanorods has been achieved by ultrasonic irradiation of the aqueous solution of Sliver nitrate, methenamine (HMTA) and poly (vinyl pyrrolidone) (PVP) for 60 min. The silver nanorods obtained have lengths of 4–7 μm and mean diameters of about 100 nm. The structures of the samples were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), selected area electron diffraction (SAED) and X-ray powder diffraction (XRD), and the chemical composition of the sample was examined by energy-dispersive X-ray spectrum (EDS). The effects of the irradiation time, the concentration of PVP and the reaction temperature on the morphology of silver nanorods were discussed, and the mechanism of the silver nanorods formation was tentatively inferred.
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sonochemical synthesis of silver nanorods by reduction of Sliver nitrate in aqueous solution
Ultrasonics Sonochemistry, 2010Co-Authors: Yuping Zhu, Xikui Wang, Jingang Wang, Weilin Guo, Chen WangAbstract:Abstract The sonochemical synthesis of Sliver nanorods has been achieved by ultrasonic irradiation of the aqueous solution of Sliver nitrate, methenamine (HMTA) and poly (vinyl pyrrolidone) (PVP) for 60 min. The silver nanorods obtained have lengths of 4–7 μm and mean diameters of about 100 nm. The structures of the samples were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), selected area electron diffraction (SAED) and X-ray powder diffraction (XRD), and the chemical composition of the sample was examined by energy-dispersive X-ray spectrum (EDS). The effects of the irradiation time, the concentration of PVP and the reaction temperature on the morphology of silver nanorods were discussed, and the mechanism of the silver nanorods formation was tentatively inferred.
Gloria Arancibia - One of the best experts on this subject based on the ideXlab platform.
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stress fields recorded on large scale strike slip fault systems effects on the tectonic evolution of crustal Slivers during oblique subduction
Tectonophysics, 2015Co-Authors: Eugenio E Veloso, Rodrigo Gomila, Jose Cembrano, Rodrigo Gonzalez, Erik Ottar Jensen, Gloria ArancibiaAbstract:Abstract In continental margins, large-scale, strike-slip fault-systems resulted from oblique subduction commonly exhibit a complex pattern of faulting where major faults define the inland boundary of tectonic Slivers that can be detached from the margin. In turn, subsidiary faults bound and define internal tectonic blocks within the Sliver which are expected to rotate, translate and/or internally disrupt in order to accommodate the internal deformation. The geometrical and spatial arrangement of faults and tectonic blocks thus determines the evolution of the Sliver given a particular stress field regime. The Paposo segment of the Atacama Fault System in northern Chile displays a series of brittle faults whose orientations are hierarchically arranged: low-order faults splay off higher-order faults forming Riedel-type and strike-slip duplexes geometries at several scales. The master (1st- and highest-order) Paposo Fault defines the inland boundary of a tectonic Sliver whereas subsidiary faults bound and disrupt internal tectonic blocks. By using newly collected brittle fault-slip data we estimated the orientations and regimes of the stress fields that acted upon the entire Sliver, the different fault-orders and the tectonic blocks. Results indicate that an overall transtensional – with NW-compressional and NE-tensional principal axes – strike-slip regime affected the Sliver and triggered the development of left-lateral strike-slip structures. An incomplete split of the stress field imposed by the subduction process resulted in the generation of a nested pattern of R-type faults as well as in a combined strike-slip/normal faulting disruption of the tectonic blocks within the Sliver.
Jingang Wang - One of the best experts on this subject based on the ideXlab platform.
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sonochemical synthesis of silver nanorods by reduction of Sliver nitrate in aqueous solution
Ultrasonics Sonochemistry, 2010Co-Authors: Xikui Wang, Jingang Wang, Chen WangAbstract:Abstract The sonochemical synthesis of Sliver nanorods has been achieved by ultrasonic irradiation of the aqueous solution of Sliver nitrate, methenamine (HMTA) and poly (vinyl pyrrolidone) (PVP) for 60 min. The silver nanorods obtained have lengths of 4–7 μm and mean diameters of about 100 nm. The structures of the samples were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), selected area electron diffraction (SAED) and X-ray powder diffraction (XRD), and the chemical composition of the sample was examined by energy-dispersive X-ray spectrum (EDS). The effects of the irradiation time, the concentration of PVP and the reaction temperature on the morphology of silver nanorods were discussed, and the mechanism of the silver nanorods formation was tentatively inferred.
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sonochemical synthesis of silver nanorods by reduction of Sliver nitrate in aqueous solution
Ultrasonics Sonochemistry, 2010Co-Authors: Yuping Zhu, Xikui Wang, Jingang Wang, Weilin Guo, Chen WangAbstract:Abstract The sonochemical synthesis of Sliver nanorods has been achieved by ultrasonic irradiation of the aqueous solution of Sliver nitrate, methenamine (HMTA) and poly (vinyl pyrrolidone) (PVP) for 60 min. The silver nanorods obtained have lengths of 4–7 μm and mean diameters of about 100 nm. The structures of the samples were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), selected area electron diffraction (SAED) and X-ray powder diffraction (XRD), and the chemical composition of the sample was examined by energy-dispersive X-ray spectrum (EDS). The effects of the irradiation time, the concentration of PVP and the reaction temperature on the morphology of silver nanorods were discussed, and the mechanism of the silver nanorods formation was tentatively inferred.
Mohamed Afifi - One of the best experts on this subject based on the ideXlab platform.
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antidiabetic activity of zinc oxide and silver nanoparticles on streptozotocin induced diabetic rats
International Journal of Molecular Sciences, 2014Co-Authors: Ali Alkaladi, Aaser M Abdelazim, Mohamed AfifiAbstract:The use of nanoparticles in medicine is an attractive proposition. In the present study, zinc oxide and silver nanoparticles were evaluated for their antidiabetic activity. Fifty male albino rats with weight 120 ± 20 and age 6 months were used. Animals were grouped as follows: control; did not receive any type of treatment, diabetic; received a single intraperitoneal dose of streptozotocin (100 mg/kg), diabetic + zinc oxide nanoparticles (ZnONPs), received single daily oral dose of 10 mg/kg ZnONPs in suspension, diabetic + silver nanoparticles (SNPs); received a single daily oral dose of SNP of 10 mg/kg in suspension and diabetic + insulin; received a single subcutaneous dose of 0.6 units/50 g body weight. Zinc oxide and silver nanoparticles induce a significant reduced blood glucose, higher serum insulin, higher glucokinase activity higher expression level of insulin, insulin receptor, GLUT-2 and glucokinase genes in diabetic rats treated with zinc oxide, silver nanoparticles and insulin. In conclusion, zinc oxide and Sliver nanoparticles act as potent antidiabetic agents.
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Article Antidiabetic Activity of Zinc Oxide and Silver Nanoparticles on Streptozotocin-Induced Diabetic Rats
2014Co-Authors: Ali Alkaladi, Aaser M Abdelazim, Mohamed AfifiAbstract:Abstract: The use of nanoparticles in medicine is an attractive proposition. In the present study, zinc oxide and silver nanoparticles were evaluated for their antidiabetic activity. Fifty male albino rats with weight 120 ± 20 and age 6 months were used. Animals were grouped as follows: control; did not receive any type of treatment, diabetic; received a single intraperitoneal dose of streptozotocin (100 mg/kg), diabetic + zinc oxide nanoparticles (ZnONPs), received single daily oral dose of 10 mg/kg ZnONPs in suspension, diabetic + silver nanoparticles (SNPs); received a single daily oral dose of SNP of 10 mg/kg in suspension and diabetic + insulin; received a single subcutaneous dose of 0.6 units/50 g body weight. Zinc oxide and silver nanoparticles induce a significant reduced blood glucose, higher serum insulin, higher glucokinase activity higher expression level of insulin, insulin receptor, GLUT-2 and glucokinase genes in diabetic rats treated with zinc oxide, silver nanoparticles and insulin. In conclusion, zinc oxide and Sliver nanoparticles act as potent antidiabetic agents
