Textiles can provide effective protection against UV radiation because they reflect, absorb and scatter solar wavelengths. Properly designed, they significantly increase the area of covered skin. The optimal combination of thickness, fabric density, mass per unit area, knitted structure, yarn type and yarn linear density, facilitate the production of textiles with high UV protection properties....

a simple method has been developed for the preconcentration of copper(ii) based on the adsorption of its modified nano polyacrylonitrile fiber. modified nano polyacrylonitrile fiber (panf) was prepared by adding of acrylic fibers to msethanolamine (mma) with different concentration solutions. the stability of a chemically modified nano polyacrylonitrile fiber especially in concentrated hydrochl...

Adsorption of gentamicin and netilmicin by new polyacrylonitrile and polyamide hemofiltration filters was studied over 4 h, using a single-compartment in vitro continuous venovenous hemofiltration model. After the first dose (16.6 mg of gentamicin, 19.3 mg of netilmicin), 14.9 mg of gentamicin and 19.2 mg of netilmicin were adsorbed to polyacrylonitrile filters in vitro. Adsorption by polyacryl...

The handling of low, middle and high molecular weight markers was examined in seven stable dialysis patients during hemofiltration with different membranes. Four membranes were examined in a randomized, crossover order (polysulfone, polyamide, AN69 polyacrylonitrile, Asahi polyacrylonitrile) by measuring plasma and dialysate concentrations of phosphate, creatinine, vitamin B12, beta 2-microglob...

OBJECTIVE This study was designed to compare the effects of continuous venovenous hemofiltration (CVVH) with two different membranes, polysulphone and polyacrylonitrile (AN69), on global and regional hemodynamics, plasma lactate, tumor necrosis factor-alpha levels, and plasma nitrite/nitrate during endotoxic shock in dogs. METHODS Fifteen pentobarbital anesthetized and mechanically ventilated...

The microcalorimetric studies on the polymerization of acrylonitrile with and without the thermal influence of polyacrylonitrile decomposition provide vital information on its thermal sensitivity and intrinsic safety. The present studies indicate that the exothermicity of polymerization and decomposition of polyacrylonitrile are kept under check by the self-regulatory role of the aqueous medium...

Experimental cloud-point data were obtained by cloud-point titration. The phase diagram for a ternary system of water–dimethylformamide–polyacrylonitrile was determined by numerical calculation on the basis of the extended Flory–Huggins theory and was found to agree well with the cloud-point data. To construct the theoretical phase diagram, three binary interaction parameters were obtained with...

Levels of vancomycin in serum are traditionally believed to be unaffected by hemodialysis. By both in vivo and in vitro techniques, the effects of a newer, more permeable dialyzer membrane on vancomycin concentrations were investigated. Six patients who were receiving vancomycin and undergoing maintenance hemodialysis with polyacrylonitrile dialyzer membranes had postdialysis levels in serum th...

Sulfurized polyacrylonitrile (SPAN) is one of the most important sulfurized carbon materials that can potentially be coupled with the carbonaceous anode to fabricate a safe and low cost “all carbon” lithium-ion battery. However, its chemical structure and electrochemical properties have been poorly understood. In this discussion, we analyze the previously published data in combination with our ...

Molecular dynamics (MD) and molecular mechanics (MM) methods have been used to investigate additive-polymer interfacial properties in single walled carbon nanotube (SWNT)-polyethylene and SWNT-polyacrylonitrile composites. Properties such as the interfacial shear stress and bonding energy are similar for the two composites. In contrast, functionalizing the SWNT with carboxylic acid groups leads...