Scytalidium thermophilum polyphenol oxidase : production and partial characterization

Mete, Sibel


Exciton related optical absorption in a spherical quantum dot
Aksahin, Ertan; Unal, Vildan Ustoglu; Tomak, Mehmet (2014-11-10)
An exciton in a spherical quantum dot is studied analytically within the effective mass approximation. A parabolic confinement under an electric field is considered. The linear and nonlinear optical absorption coefficients are calculated within the density matrix formalism. No assumptions are made about the strength of the confinement. It is shown how the competing mechanisms of the Coulomb interaction, the confinement and the applied static electric field affect the optical absorption.
Semi-IPN Chitosan/PEG Microspheres and Films for Biomedical Applications: Characterization and Sustained Release Optimization
Gunbas, Ismail Dogan; Sezer, Umran Aydemir; GÜLÇE İZ, SULTAN; Gurhan, Ismet Deliloglu; Hasırcı, Nesrin (2012-09-19)
Micro drug carriers are one of the efficient methods for local or systemic cancer treatment. In this study, the aim was to prepare a novel semi-interpenetrated (semi-IPN) micro system by using biocompatible chitosan (CH) and polyethylene glycol (PEG). Various combinations of the systems were prepared and loaded with a model chemotherapeutic drug, methotrexate (MTX), and the effects of composition on the properties and the release behavior of microspheres were examined. Also, the mechanical and thermal prope...
ELSAID, M; Tomak, Mehmet (1991-02-01)
The binding energy for on-centre impurities in a rectangular quantum well wire is calculated as a function of the width of the wire and perpendicular magnetic field. The results for zero-magnetic-field cases are in perfect agreement with previous calculations.
Utilization of Scytalidium thermophilum phenol oxidase in bioorganic synthesis
Kaptan, Yelda; Ögel, Zümrüt Begüm; Department of Biotechnology (2004)
In this study, the ultimate aim was to utilize phenol oxidases of Scytalidium thermophilum in bioorganic syntheses. For this purpose, studies were conducted towards enhancing the production of phenol oxidases by Scytalidium thermophilum, developing a suitable method for laccase activity assays, analyzing the effects of organic solvents on phenol oxidase activity and analysis of the biotransformation of a number of organic substrates by phenol oxidases of Scytalidium thermophilum. In order to enhance the pro...
Isocyanate functionalization of nano-boehmite for the synthesis of polyurethane organic-inorganic hybrid materials
Eroğlu, Gülden; Gündüz, Güngör; Çolak, Üner; Department of Polymer Science and Technology (2011)
In this study, organic-inorganic hybrid materials were prepared from polyurethane and boehmite. It was achieved by polymerizing monomers in the presence of functional nano-particles of boehmite with cyanate groups. The produced polyurethane organic-inorganic hybrid materials with enhanced mechanical properties were used for coating applications. Plate-like boehmite nano-particles were produced by hydrothermal process from aluminum hydroxide which was first ground in a high energy ball-mill, and then, proces...
Citation Formats
S. Mete, “ Scytalidium thermophilum polyphenol oxidase : production and partial characterization,” M.S. - Master of Science, Middle East Technical University, 2002.