Preparation and modification of heat-activated dental base material cured by gamma radiation

Eser, Özlem


Preparation and microstructure of sol-gel derived silver-doped silica
Akkopru, Betul; Durucan, Caner (2007-08-01)
Silver-doped silica was prepared by hydrolysis and condensation of tetraethyl orthosilicate (TEOS, Si(OC2H5)(4)) in the presence of a silver nitrate (AgNO3) solution by two different synthesis methods. In the first synthesis route, sol-gel mixtures were prepared using an acid catalyst. In the second synthesis route, silver-doped silica gels were formed by two-step acid/base catalysis. For the same concentration of silver dopant [AgNO3]/[TEOS] = 0.015 acid-catalyzed sol-gel formed a microporous silica with a...
Preparation of antimicrobial films from agricultural biomass
Seber, Ayşe Gizem; Bakır, Ufuk; Department of Biotechnology (2010)
Mainly used food packaging materials are petro-chemical based polymers which present environmental problems since they are not biodegradable and ecologically sustainable. In this study, biodegradable biofilms are produced from xylan, extracted from cotton stalk which is an agricultural biowaste without nutritional value. Antimicrobial property was given to the biofilms with either titanium dioxide sol-gel coatings or titanium dioxide powder addition into the biofilm forming solutions. The antimicrobial acti...
Ozenbas, Macit; Ergin, Umit (Informa UK Limited, 1996-01-01)
The present paper describes the preparation of Pb(Zr,Ti)O-3 thin films and powders from metal chlorides by homogeneous precipitation using urea. The rate of decomposition of urea is very slow and the particles formed are very small in size (micron-sized) and highly homogeneous in composition. The coating of the films was carried out on alumina and silicon substrates in an ambient atmosphere. Heat treatment temperatures in excess of 800 degrees C were required to ensure that the perovskite phase dominated in...
Preparation of clay-polymer nanocomposite for the retardation of waste water infiltration in landfill sites
Bildiren, Mert; Günal Türkmenoğlu, Asuman; Department of Geological Engineering (2007)
In this thesis study, the use of clay-polymer nanocomposites for their applicability in landfill sites as a product of retardation of waste water infiltration was evaluated. For this purpose, organophilic clays from HDTMA+ organic cation and nanocomposites of montmorillonite were prepared. The bentonite samples B1, B2 and B3 dominantly contain 2:1 layer montmorillonite and 1:1 interstratification of illite/smectite mixed layer as clay minerals. B1 is an unmodified yellow bentonite and B2 is a grey bentonite...
Preparation of anti-adhesive and antibacterial surfaces using polymers
Onat, Bora; İErel Göktepe, İrem; Banerjee, Sreeparna; Department of Biotechnology (2017)
Layer-by-layer self-assembly of polymers is a versatile technique which can impart new functions to the surfaces of biomedical instruments and biomaterials. Materials which are coated by this technique can exhibit response towards environmental stimuli, such that the controlled release of drugs and similar biologically functional molecules under different stimuli can be observed. In the span of this thesis study, ultra-thin polymer films were prepared through the layer-by-layer self-assembly technique, the ...
Citation Formats
Ö. Eser, “Preparation and modification of heat-activated dental base material cured by gamma radiation,” Middle East Technical University, 1998.