Zinc acetate as a precipitant of unstable haemoglobins.

Unstable haemoglobin Köln disease in members of a Malay family.

A group of unstable haemoglobins associated with congenital nonspherocytic haemolytic anaemia has recently been recognized. They are characterized by the instability of the haemoglobin solutions and by being heat labile. Contrary to most known abnormal haemoglobins reported to date, their presence in the blood is not always easy to demonstrate by electrophoretic methods. In the red blood cells ...

Synthesis of zinc oxide nanoparticle by zinc acetate precursor and study on its catalytic properties

ZnO nanoparticles have been prepared by a simple method in a short period of time. In this synthetic method, the sample was obtained using Zn(CH3COO)2·2H2O and a new template of hexamine salt. Their crystalline structure and morphology were studied by XRD and SEM. The optical properties of the sample were studied by UV–visible spectroscopy. The absorption spectr...

Synthesis of zinc oxide nanoparticle by zinc acetate precursor and study on its catalytic properties

ZnO nanoparticles have been prepared by a simple method in a short period of time. In this synthetic method, the sample was obtained using Zn(CH3COO)2·2H2O and a new template of hexamine salt. Their crystalline structure and morphology were studied by XRD and SEM. The optical properties of the sample were studied by UV–visible spectroscopy. The absorption spectr...

Reactions involving superoxide and normal and unstable haemoglobins.

Superoxide ions (O2-) oxidized oxyhaemoglobin to methaemoglobin and reduced methaemoglobin to oxyhaemoglobin. The reactions of superoxide and H2O2 with oxyhaemoglobin or methaemoglobin and their inhibition by superoxide dismutase or catalase were used to detect the formation of superoxide or H2O2 on autoxidation of oxyhaemoglobin. The rate of autoxidation was decreased at about 35% in the prese...

Separation of haemoglobins on cellulose acetate.