Refine
H-BRS Bibliography
- yes (25) (remove)
Departments, institutes and facilities
- Fachbereich Angewandte Naturwissenschaften (25) (remove)
Document Type
- Article (19)
- Part of a Book (4)
- Conference Object (1)
- Doctoral Thesis (1)
Year of publication
- 2012 (25) (remove)
Language
- English (25) (remove)
Keywords
- CD21 (2)
- Polymers (2)
- 3D-printing (1)
- Adult Stem Cells/physiology (1)
- Ankle thickness (1)
- Arthritis (1)
- Atherosclerosis (1)
- B lymphocyte (1)
- Bioactive factors (1)
- Biomaterials (1)
Development and Validation of a Rapid and Reliable Method for TPMT Genotyping using real-time PCR
(2012)
One of the most common problems in Regenerative Medicine is the regeneration of damaged bone with the aim of repairing or replacing lost or damaged bone tissue by stimulating the natural regenerative process. Particularly in the fields of orthopedic, plastic, reconstructive, maxillofacial and craniofacial surgery there is need for successful methods to restore bone. From a regenerative point of view two different bone replacement problems can be distinguished: large bone defects and small bone defects. Currently, no perfect system exists for the treatment of large bone defects.
The criteria for assessing the quality of rubber materials are the polymer or copolymer composition and the additives. These additives include plasticizers, extender oils, carbon black, inorganic fillers, antioxidants, heat and light stabilizers, processing aids, cross-linking agents, accelerators, retarders, adhesives, pigments, smoke and flame retardants, and others. Determination of additives in polymers or copolymers generally requires the extraction of these substances from the matrix as a first step, which can be challenging, and the subsequent analysis of the extracted additives by gas chromatography (GC), GC–mass spectrometry (MS), high performance liquid chromatography (HPLC), HPLC–MS, capillary electrophoresis, thin-layer chromatography, and other analytical techniques. In the present work, nitrile rubber materials were studied using direct analytical flash pyrolysis hyphenated to GC and electrospray ionization MS in both scan and selected ion monitoring modes to demonstrate that this technique is a good tool to identify the organic additives in nitrile rubber.
In this work, preceramic papers containing 85 wt% Al2O3 were heat-treated at 1600 °C to obtain paper-derived ceramics. In order to increase the preceramic paper density prior to sintering, the papers were calendered at different roll temperatures and pressures. The influences of the calendering parameters on the microstructure and mechanical properties of the preceramic papers and the paper-derived ceramics were investigated. It was expected that especially the mechanical properties of the papers and derived ceramics would be improved by calendering.