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Investigations of environmentally benign pyrotechnic formulations based on nitrogen-rich and energetic boron-based compoundsRusan, Magdalena 07 July 2014 (has links) (PDF)
Novel non-toxic and environmentally friendly pyrotechnic formulations have been developed and investigated. A series of nitrogen-rich metal salts and energetic boron-based compounds have been synthesized, characterized and tested as red, green and blue colorants in pyrotechnic compositions.
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1D TiO2 nanostructures probed by 2D transmission electron microscopyWisnet, Andreas 19 December 2014 (has links) (PDF)
Hybrid solar cells based on nanoparticulate TiO2, dye and poly(3-hexylthiophene) are a common benchmark in the field of solid-state dye-sensitized solar cells. One-dimensionally nanostructured titanium dioxide is expected to enhance power-conversion efficiency (PCE) due to a high surface area combined with a direct path for electrons from the active interface to the back electrode. However, current devices do not meet those expectations and cannot surpass their mesoporous counterparts. This work approaches
the problem by detailed investigation of diverse nanostructures on a nanoscale by advanced transmission electron microscopy (TEM). Anodized TiO2 nanotubes are analyzed concerning their crystallinity. An unexpectedly large grain size is found, and its implication is shown by corresponding solar cell characteristics which feature an above-average fill factor. Quasi-single crystalline rutile nanowires are grown hydrothermally, and a peculiar defect structure consisting of free internal surfaces is revealed. A growth model based on Coulombic repulsion and steric hindrance is developed to explain the resulting V-shaped defect cascade. The influence of the defects on solar cell performance is investigated and interpreted by a combination of TEM, electronic device characterization and photoluminescence spectroscopy, including lifetime measurements. A specific annealing treatment is proposed to counter the defects, suppressing several loss mechanisms and resulting in an improvement of PCEs by 35 %. Simultaneously, a process is developed to streamline electron-tomographic reconstruction of complex nanoparticles. Its suitability is
demonstrated by the reconstruction of a gold nanostar and a number of iron-based particles distributed on few-layered graphene.
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Preparation of nanodispersions by antisolvent precipitationFreitag, Klaus 21 December 2010 (has links) (PDF)
No description available.
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Molecular imaging and radionuclide therapy in non-thyroidal tumors after mesenchymal stem cell- mediated sodium/iodide symporter (NIS) gene transferKnoop, Kerstin 08 May 2014 (has links) (PDF)
No description available.
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Anticancer effects of the V-ATPase inhibitor Archazolid BWiedmann, Romina Madeleine 20 December 2011 (has links) (PDF)
No description available.
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Structural biochemistry of actin-related protein 8 within its INO80 chromatin remodeler environmentGerhold, Christian-Benedikt 07 December 2012 (has links) (PDF)
No description available.
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Context-specific methods for sequence homology searching and alignmentBiegert, Andreas 13 December 2010 (has links) (PDF)
No description available.
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Triazolobenzodiazepines and -triazepines as protein interaction inhibitors targeting bromodomains of the BET familyWrobel, Matthias 21 January 2014 (has links) (PDF)
Benzodiazepines are psychoactive drugs with anxiolytic, sedative, skeletal muscle relaxant and amnestic properties. Recently triazolobenzodiazepines have been also described as potent and highly selective protein interaction inhibitors of bromodomain and extra-terminal (BET) proteins, a family of transcriptional co-regulators that play a key role in cancer cell survival and proliferation.
Besides SAR studies using high resolution crystal structures, we measured affinity and selectivity of newly synthesized triazolobenzodiazepine and triazolobenzotriazepine derivatives via a protein stability shift assay as well as isothermal titration calorimetry (ITC). Our analysis revealed the importance of the annulated methyltriazole ring for BET binding and suggests modifications for the development of further high affinity bromodomain inhibitors!
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Metallierung von Pyridylmetallocenen durch Platin(II), Gold(III), Quecksilber(II) und Iridium(III)Weigand, Stefan 25 February 2013 (has links) (PDF)
No description available.
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Untersuchungen zur Stabilisierung und Interaktion von Cetuximab mit nicht-ionischen TensidenZiegler, Katharina Melanie 17 December 2013 (has links) (PDF)
No description available.
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