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21 articles for “crystallization”
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Research ArticleOpen accessIn the keywordsStabilization of Tyrosinase-Bovine Serum Albumin Crystals by GlutaraldehydeD. Norouzian, A. Akbarzadeh, M.H. Abnosi et al.Tyrosinase and bovine serum albumin were co-crystallized by saturated ammonium sulfate solution(65%) and 20% polyethylene glycol ( PEG) 6000 and n-propanol as co-solvents .The obtained crystals were cross linked by glutaraldehyde solution(1% v/v).Polyethylene glycol 6000 was found to be better co-solvent than n-propanol. The developed biocatalyst could be recycled 6 times without further loss of tyrosinase activity. No loss of … …American Journal of Biochemistry and Biotechnology, Vol. 3, Issue 3 · 30 Sep 2007 · 7,194 accessesView PDFCite
Research ArticleOpen accessIn the abstractFabrication and Mechanical Properties of Glass Fiber/Talc/CaCO3 Filled Recycled PP CompositesUğur Soy, Fehim Findik, Salih Hakan Yetgin et al.Until now, recycling studies brought to the agenda after the rapid increasing of plastic materials in every area and causing those plastics to environmental pollution after discarding them following the utilization. The purpose of recycling plastic waste is to minimize environmental pollution and to create of new resources. To perform the present study, Recycled Polypropylene Granules (RPP) belonging to Polypropylene … …American Journal of Applied Sciences, Vol. 14, Issue 9 · 15 Aug 2017 · 9,364 accessesView PDFCite
Research ArticleOpen accessIn the abstractComposition Dependent Structural and Thermal Properties of SM2O3 Doped Zinc Fluoroborate GlassesSudha D. Kamath, Akshatha Wagh, M.P. AjithkumarGlasses based on Sm3+ doped zinc fluoroborate have been synthesized and characterized. Formation of glass has been investigated in the 30 ZnF2-20 TeO2-(50-x) B2O3-x Sm2O3 matrix. Fast quenching is required to prevent melt crystallization and adequate heat treatment to diminish thermal stress, which results in an efficient amorphous material. The Differential Scanning Calorimeter (DSC), Scanning Electron Microscopy (SEM), Energy Dispersive … …Energy Research Journal, Vol. 4, Issue 2 · 15 Jul 2014 · 7,244 accessesView PDFCite
Research ArticleOpen accessIn the abstractSYNTHESIS, CHARACTERIZATION AND INFLUENCE OF CALCINATIONS TEMPERATURE ON MAGNETIC PROPERTIES OF Ni0.75Zn0.25Fe2O4 NANOPARTICLES SYNTHESIZED BY SOL-GEL TECHNIQUEBeh Hoe Guan, Lee Kean Chuan, Hassan SoleimaniThe calcinations temperature is one of the important process parameter which influences the changes of magnetic properties in ferrites. This study provide better understanding of the influence of calcination temperatures on the magnetic properties of Nickel Zinc ferrite consequently enable to tailor the magnetic properties of Nickel Zinc ferrite for specific application. Magnetic nanoparticles of Nickel Zinc ferritewere synthesized by … …American Journal of Applied Sciences, Vol. 11, Issue 6 · 21 Mar 2014 · 6,879 accessesView PDFCite
Research ArticleOpen accessIn the abstractInfluence of Annealing Temperature on Characteristics of Bismuth Doped Zinc Oxide FilmsSirirat Tubsungnoen Rattanachan, Phanuwat Krongarrom, Thipwan FangsuwannarakIn this study, Bismuth (Bi) doped ZnO thin films were deposited on quartz substrates by a sol-gel spin coating method and annealed at different annealing temperatures of 200, 300, 400, 500, 600 and 700°C, respectively. Structural and optical properties of nanocrystalline Bi-doped ZnO film on quartz were investigated by using X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and UV-VIS spectrophotometer. … …American Journal of Applied Sciences, Vol. 10, Issue 11 · 1 Oct 2013 · 7,126 accessesView PDFCite
Research ArticleOpen accessIn the abstractEmerging Trends in Designing Short and Efficient Protein Purification ProtocolsSaurabh Gautam, Joyeeta Mukherjee, Ipsita Roy, Munishwar Nath GuptaProtein purification is carried out in both academic and industrial sectors. Both non-chromatographic approaches (precipitation, crystallization, partitioning) and chromatographic methods are used. When recombinant proteins are over expressed in foreign hosts, inclusion bodies are obtained. Many purification methods can be used to refold proteins. Many strategies allow one to avoid formation of inclusion bodies. The concept of affinity based separation … …American Journal of Biochemistry and Biotechnology, Vol. 8, Issue 4 · 25 Dec 2012 · 9,007 accessesView PDFCite
Research ArticleOpen accessIn the abstractExtraction, Purification and Characterization of Fish Chymotrypsin: A ReviewLiang Zhou, Suzanne M. Budge, Abdel E. Ghaly et al.Problem statement: Solid fish waste is generated from the unwanted parts of fish including heads, tails, fins, frames, offal (guts, kidney and liver) and skin. It accounts for up to 80% of material from production of surimi, 66% from production of fillet and 27% from production of headed and gutted fish. Currently, fish wastes are disposed off in land-based waste … …American Journal of Biochemistry and Biotechnology, Vol. 7, Issue 3 · 22 Sep 2011 · 10,585 accessesView PDFCite
Research ArticleOpen accessIn the abstractBioassay Guided Isolation of Antibacterial Compounds from Andrographis paniculataAbubakar Sule, Qamar Uddin Ahmed, Othman Abd. Samah et al.Problem statement: Chronic disease-causing bacteria of medical importance have developed resistance to antibiotics, hence, necessitating distinct and constant need for safe and efficient therapeutic agents. Plants are considered potent candidate for this aim. A way out of reducing antibiotic resistance and adverse effects on host is the employment of antibiotic resistance inhibitors of plant origin. Approach: About 5 kg pulverized … …American Journal of Applied Sciences, Vol. 8, Issue 6 · 13 Jun 2011 · 10,025 accessesView PDFCite
Research ArticleOpen accessIn the abstractCharacterization of Nigella Sativa L. Essential Oil-Loaded Solid Lipid NanoparticlesNagi A. ALHaj, Mariana N. Shamsudin, Norfarrah M. Alipiah et al.Problem statement: Seeds of Nigella Sativa L., commonly known as black seed, have been used in traditional medicine by many Asian, Middle Eastern and Far Eastern Countries to treat headache, coughs, abdominal pain, diarrhea, asthma, rheumatism and other diseases. The seeds of this plant are the most extensively studied, both phytochemically and pharmacologically. The aqueous and oil extracts of the … …American Journal of Pharmacology and Toxicology, Vol. 5, Issue 1 · 31 Mar 2010 · 17,874 accessesView PDFCite
Research ArticleOpen accessIn the abstractPetrography and Sulphur Isotope Studies of Pyrites in the Muteh Gold DepositM. J. Abdollahi, M. H. Karimpour, A. KheradmandProblem statement: The Muteh mining district is located in 70 km northeast of Golpaygan city within the Sanandaj-Sirjan metamorphic belt. There are 2 gold mines, 7 gold occurrences and numerous mineral indices in the Muteh gold district. There are few researches on Muteh gold district, but a detailed model is not clear yet. The aim of this study is to … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 7,131 accessesView PDFCite