in this study, multi wall carbon nanotubes (mwcnts) were synthesized by chemical vapor deposition (cvd) method using two different catalysts (fe nanoparticles) and (ni nanoparticles) with  two different substrates: quartz and alumina. acetylene gas was used as a carbon source and argon as a carrier gas at different temperatures and different times to study the effects of these parameters on cnt...

the photocatalytic decomposition of trichloroethylene (tce) and tetrachloroethylene (pce)in water was studied. tce and pce were present in water at very low concentrations of about 15 μg/dm3. thisconcentration level corresponds to the one occasionally occurring in groundwater. results of this researchconfirmed usefulness of the photocatalytic process for successful removal of low-concentrated t...

two sialic acid specific lectins episesarma tetragonum agglutinin–1 and 2 were purified from the hemolymph of the mangrove crab, episesarma tetragonum . the major lectin was purified using cnbr-activated sepharose 4b conjugated to fetuin. n-acetyl glucosamine containing buffer was used for elution. the hemagglutination activity of purified lectin was inhibited by glycoproteins containing siaα, ...

conclusions this method could be feasibly used for purification of large quantities of allicin from garlic extract. results semi-preparative hplc yielded a distinct peak with a retention time of 12.28 minutes. the purity (≥ 95%) and biological activity (p > 0.05) of purified allicin were comparable to the standard allicin. purified allicin produced same peak areas compared to the standard allic...

background: among diverse protein purification systems, affinity chromatography is the most attractive one in the purification process of coagulation factors. coagulation factor vii is a plasma serine protease that has a significant role in natural human hemostasis and its recombinant form such as aryoseventm, has been applied in clinical treatment of bleeding disorders. immunoaffinity chromato...

There has been significant recent interest in computing effective practical strategies for playing large games. Most prior work involves computing an approximate equilibrium strategy in a smaller abstract game, then playing this strategy in the full game. In this paper, we present a modification of this approach that works by constructing a deterministic strategy in the full game from the solut...

background: phenylalanine dehydrogenase (phedh ec 1.4.1.20) is a nad+-dependent enzyme that performs the reversible oxidative deamination of l-phenylalanine to phenylpyruvate. it plays an important role in detection and screening of phenylketonuria (pku) diseases and production of chiral intermediates as well. the main goal of this study was to find a simple and rapid alternative method for pur...

background: it is believed that bovine neutrophils contain several peptides and protein which exhibit antimicrobial activity against microorganisms such as fungi and bacteria. objectives: the purpose of this study was to isolate and purify a potential antibacterial protein from bovine neutrophil and test its anti bacterial activity. methods: neutrophils were isolated from bovine blood using dex...

Agilent 1260 Infinity LC and LC/MS purification systems offer flexible and easy‐to‐use solutions for purification of microgram to gram quantities of samples, with maximum levels of recovery and purity. Using combined or dedicated analytical and preparative‐scale systems configured to meet the throughput demands of your laboratory, the Agilent Automated Purification Software automates the transf...