388 Int. J. Nanoparticles, Vol. 2, Nos. 1/2/3/4/5/6, 2009 ... Synthesis of zinc ferrite nanoparti... more 388 Int. J. Nanoparticles, Vol. 2, Nos. 1/2/3/4/5/6, 2009 ... Synthesis of zinc ferrite nanoparticles by sol-gel method and their characterisation ... Ameer Azam*, Mohammad Chaman and Alim H. Naqvi ... Department of Applied Physics, ZH College of Engineering & Technology, ...
A new nano dimensional heterobimetallic Cu-Sn containing complex as a potential drug candidate wa... more A new nano dimensional heterobimetallic Cu-Sn containing complex as a potential drug candidate was designed, synthesized and characterized by analytical and spectral methods. The electronic absorption and electron paramagnetic resonance parameters of the complex revealed that the Cu(II) ion exhibits a square pyramidal geometry with the two pyrazole nitrogen atoms, the amine nitrogen atom and the carboxylate oxygen of the phenyl glycine chloride ligand located at the equatorial sites and the coordinated chloride ion occupying an apical position. (119)Sn NMR spectral data showed a hexa-coordinated environment around the Sn(IV) metal ion. TEM, AFM and XRD measurements illustrate that the complex could induce the condensation of CT-DNA to a particulate nanostructure. The interaction of the Cu-Sn complex with CT-DNA was investigated by UV-vis absorption and emission spectroscopy, as well as cyclic voltammetric measurements. The results indicated that the complex interacts with DNA through an electrostatic mode of binding with an intrinsic binding constant K(b) = 8.42 x 10(4) M( - 1). The Cu-Sn complex exhibits effective cleavage of pBR322 plasmid DNA by an oxidative cleavage mechanism, monitored at different concentrations both in the absence and in the presence of reducing agents.
Zinc oxide (ZnO) nanoparticles (< 20 nm) were synthesi... more Zinc oxide (ZnO) nanoparticles (< 20 nm) were synthesised by sol-gel method and characterised by X-ray diffraction (XRD). Extensive use of ZnO in sunscreens and cosmetics, and their reported photoclastogenicity has prompted us to investigate its genotoxic potential. We have assessed the ZnO-induced DNA damage, intracellular ROS generation and change in mitochondrial membrane potential (ΔΨm), employing alkaline single cell gel electrophoresis (comet assay), flow cytometry and spectrofluorometric analysis. Significant ...
ZnO nanopowder formation through solgel route is reported here. Sol was prepared from zinc aceta... more ZnO nanopowder formation through solgel route is reported here. Sol was prepared from zinc acetate dihydrate precursor and ethylene glycol as solvent. The resulting solution was highly water sensitive and converted to gel on addition of a few drops of water, final heating in ...
Abstract : In the present study measurement of radon and its progeny concentration has been under... more Abstract : In the present study measurement of radon and its progeny concentration has been undertaken in the buildings constructed in the surroundings of National Hydroelectric Power Corporation (NHPC). LR-115 Type-II solid state nuclear track detectors fixed on a thick flat ...
Purpose - The purpose of this paper is to present the dependence of capcitive sensing of organic ... more Purpose - The purpose of this paper is to present the dependence of capcitive sensing of organic vapors by porous silicon on its molecular structure for the realization of a organic vapour sensor , compatible with existing silicon technology, with desired miniaturization and selectivity.
388 Int. J. Nanoparticles, Vol. 2, Nos. 1/2/3/4/5/6, 2009 ... Synthesis of zinc ferrite nanoparti... more 388 Int. J. Nanoparticles, Vol. 2, Nos. 1/2/3/4/5/6, 2009 ... Synthesis of zinc ferrite nanoparticles by sol-gel method and their characterisation ... Ameer Azam*, Mohammad Chaman and Alim H. Naqvi ... Department of Applied Physics, ZH College of Engineering & Technology, ...
A new nano dimensional heterobimetallic Cu-Sn containing complex as a potential drug candidate wa... more A new nano dimensional heterobimetallic Cu-Sn containing complex as a potential drug candidate was designed, synthesized and characterized by analytical and spectral methods. The electronic absorption and electron paramagnetic resonance parameters of the complex revealed that the Cu(II) ion exhibits a square pyramidal geometry with the two pyrazole nitrogen atoms, the amine nitrogen atom and the carboxylate oxygen of the phenyl glycine chloride ligand located at the equatorial sites and the coordinated chloride ion occupying an apical position. (119)Sn NMR spectral data showed a hexa-coordinated environment around the Sn(IV) metal ion. TEM, AFM and XRD measurements illustrate that the complex could induce the condensation of CT-DNA to a particulate nanostructure. The interaction of the Cu-Sn complex with CT-DNA was investigated by UV-vis absorption and emission spectroscopy, as well as cyclic voltammetric measurements. The results indicated that the complex interacts with DNA through an electrostatic mode of binding with an intrinsic binding constant K(b) = 8.42 x 10(4) M( - 1). The Cu-Sn complex exhibits effective cleavage of pBR322 plasmid DNA by an oxidative cleavage mechanism, monitored at different concentrations both in the absence and in the presence of reducing agents.
Zinc oxide (ZnO) nanoparticles (< 20 nm) were synthesi... more Zinc oxide (ZnO) nanoparticles (< 20 nm) were synthesised by sol-gel method and characterised by X-ray diffraction (XRD). Extensive use of ZnO in sunscreens and cosmetics, and their reported photoclastogenicity has prompted us to investigate its genotoxic potential. We have assessed the ZnO-induced DNA damage, intracellular ROS generation and change in mitochondrial membrane potential (ΔΨm), employing alkaline single cell gel electrophoresis (comet assay), flow cytometry and spectrofluorometric analysis. Significant ...
ZnO nanopowder formation through solgel route is reported here. Sol was prepared from zinc aceta... more ZnO nanopowder formation through solgel route is reported here. Sol was prepared from zinc acetate dihydrate precursor and ethylene glycol as solvent. The resulting solution was highly water sensitive and converted to gel on addition of a few drops of water, final heating in ...
Abstract : In the present study measurement of radon and its progeny concentration has been under... more Abstract : In the present study measurement of radon and its progeny concentration has been undertaken in the buildings constructed in the surroundings of National Hydroelectric Power Corporation (NHPC). LR-115 Type-II solid state nuclear track detectors fixed on a thick flat ...
Purpose - The purpose of this paper is to present the dependence of capcitive sensing of organic ... more Purpose - The purpose of this paper is to present the dependence of capcitive sensing of organic vapors by porous silicon on its molecular structure for the realization of a organic vapour sensor , compatible with existing silicon technology, with desired miniaturization and selectivity.
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