the present study was conducted to examine the effect of using latex and nitrile examination gloves on hand dexterity.  a  sample  consisting  of  30  university  students  from  urmia  university  of  medical  sciences participated in this study in 2013. the participants conducted purdue pegboard test in three experimental conditions: bare hand (control), with latex gloves and with nitrile glo...

Multiwall carbon nanotubes (MWCNTs) and carbon nanofibers (CNFs) with contents ranging from 1 to 10 phr (part per hundred parts of rubber) were selected and then characterized to reinforce acrylonitrile butadiene rubber (NBR) based composites. Fabrication of nanocomposites were done by a novel procedure and structural analysis along with variety of mechanical and chemical tests, according to th...

Rhodococcus rhodochrous NCIMB 11216 produced nitrile hydratase (320 nkat mg of protein(-1)) and amidase activity (38.4 nkat mg of protein(-1)) when grown on a medium containing propionitrile. These enzymes were able to hydrolyze nitrile groups of both granular polyacrylonitriles (PAN) and acrylic fibers. Nitrile groups of PAN40 (molecular mass, 40 kDa) and PAN190 (molecular mass, 190 kDa) were ...

The chemical industry has recently begun to look at enzymes as novel catalysts for many organic syntheses. Nitrile-hydrolyzing enzymes such as nitrile hydratase and nitrilase have great potential as catalysts in processing organic chemical because they can convert nitriles to the corresponding higher-value amides or acids. Recently, the use of bacterial nitrile hydratase for industrial producti...

Based on monitoring the γ process (the lowest temperature-relaxation) in polyacrylonitrile (PAN) by dynamic dielectric spectroscopy, new evidence for the formation of a charge transfer complex between bromine dopants and nitrile groups is presented. The experimental work is carried out on PAN and nitrile polymerized PAN with and without bromine doping and the effects of these factors on the γ p...

The distribution of phenylacetaldoxime-degrading and pyridine-3-aldoxime-degrading ability was examined with intact cells of 975 microorganisms, including 45 genera of bacteria, 11 genera of actinomyces, 22 genera of yeasts, and 37 genera of fungi, by monitoring the decrease of the aldoximes by high-pressure liquid chromatography. The abilities were found to be widely distributed in bacteria, a...

For the manufacture of frost-resistant oil and petrol-resistant rubber products, one most widely used rubbers is nitrile-butadiene (NBR) with a low acrylonitrile content 17–20 %. However, technical properties its vulcanizates do not always meet all high performance requirements. Therefore, study possibility improving characteristics based on NBR an urgent task. This paper presents results study...

The magnitude of the membrane dipole field was measured using vibrational Stark effect (VSE) shifts of nitrile oscillators placed on the unnatural amino acid p-cyanophenylalanine (p-CN-Phe) added to a peptide sequence at four unique positions. These peptides, which were based on a repeating alanine-leucine motif, intercalated into small unilamellar DMPC vesicles which formed an α-helix as confi...