Annals of Chemical Science Research Progressive Indoor Air Quality Management Using Nanocomposites Derived Filtration Media Ayesha Kausar1,2,3*, Ishaq Ahmad1,2,3, Zhu Tianle4 and Eisa MH5 1NPU-NCP joint international research center on Advanced Nanomaterials Defects engineering, Northwestern Polytechnical University, China 2UNESCO-UNISA Africa Chair in Nano-sciences/Nanotechnology, iThemba LABS...

PURPOSE Find a novel delivery system for oral administration of drugs that have absorption window in the upper part of gastrointestinal (GI) track. METHODS Dipyridamole was chosen as the model drug. A novel system, which combined the osmotic pump controlled release system and the floating system, was designed; matrix tablets (MT) were prepared for compares. The effects of pH, temperature and ...

River bank filtratio filtration (RBF) is one of the novel water abstraction alternatives to tackle poor water quality problem in Malaysia. This study was conducted to investigate the potential use of zeolite and activated carbon as filter media in the laboratory RBF system. Characteristics of the materials were first determined using the surface analyzer and X-ray fluorescence method. Filter co...

an oral sustained-release floating tablet formulation of metformin hcl was designed and developed. effervescence and swelling properties were attributed on the developed tablets by sodium bicarbonate and hpmc-peo polymer combination, respectively. tablet composition was optimized by response surface methodology (rsm). seventeen (17) trial formulations were analyzed according to box-behnken desi...

We designed a chemical method for measurement of iohexol concentrations (4) and characterized its pharmacokinetics in man in relation to a number of other contrast media (5, 6). We found that is indeed a suitable marker for glomerular filtration rate (GFR): after intravenous injection, it is quantitatively recovered in the urine; the elimination occurs by glomerular filtration, with no signs of...

BACKGROUND Contrast induced nephrotoxicity (CIN) is a well described syndrome in humans undergoing contrast medium examinations. To date CIN has received minimal attention in the veterinary literature despite increasing use of contrast medium examinations in computed tomographic studies. METHODS This prospective study evaluated the effect of 1290 mg/kg iohexol given intravenously to 5 normal ...

Accurate determination of geometrical and physical properties of natural porous materials is notoriously difficult. Continuum multiscale modeling has provided carefully calibrated realistic microstructure models of reservoir rocks with floating point accuracy. Previous measurements using synthetic microcomputed tomography (μ-CT) were based on extrapolation of resolution-dependent properties for...

Floating-gate (FG) transistors serve as attractive media for non-volatile storage of analog parameters. However, conventional FG current memories when used for storing sub-threshold currents are sensitive to variations in temperature which limit their applications to controlled environments. In this paper, we propose a temperature compensated, high-density array of FG current memories that can ...