carbon nanotubes are regarded as promising building blocks for the construction of novel biosensors due to their unique properties like fast electron transfer, high electrocatalytic effect and good biocompatibility. in the present study, the effect of different chemical oxidation’s methods of multi-walled carbon nanotubes (mwcnts) on the electrochemical behavior of modified graphite electrodes ...

Carbon nanotubes are regarded as promising building blocks for the construction of novel biosensors due to their unique properties like fast electron transfer, high electrocatalytic effect and good biocompatibility. In the present study, the effect of different chemical oxidation’s methods of multi-walled carbon nanotubes (MWCNTs) on the electrochemical behavior of modified graphite electrodes ...

From The Beatrice and Samuel A. Seater Laboratory, Division of Hematology-Ontology, Department of Meriting Cornell Unit~ersity Medical College, New York, New York 10021; the *Department of Biochemical and Molecular Pathology, Merck, Sharpe & Dohme Research Laboratories, Rahway, New Jersey 07065; and the *Division of Immunology, Beckman Research Institute of the City of Hope, Duarte, California ...

The structural and bleaching properties of nitric acid-activated Nteje clay was studied to investigate its ability to serve as an alternative to the high cost imported bleaching earth. The clay was mined, sun-dried, grinded, and reacted with different concentrations of nitric acid, ranging from 2 mol.L-1 to 15 mol.L-1. The un-activated and activated samples were characterized to study the struc...

sub chronic exposure to lead in rats slows gastric emptying, but little is known about the effects of lead on gastric secretion. this study was designed to investigate the effects of lead on gastric acid secretion and its possible mechanisms in rats. lead acetate was dissolved in drinking water in a concentration of 1%. sodium acetate-containing water with a molar concentration similar to lead ...

Professor Karl August Folkers (Figure 1), a biochemist from the United States, was the head of one of the two research groups, one in England and one in the United States. In 1948, the two groups independently and simultaneously reported the isolation of vitamin B12 [1,2]. Most of Folkers’ work was carried out while working at the Merck Company (later Merck Sharp & Dohme) from 1934 to 1963. His...