The aim of the present study was to investigate the effects of the novel polyamine analog tetrabutyl propanediamine (TBP) on the growth of K562 chronic myelogenous leukemia (CML) cells and the underlying mechanism of these effects. MTT was used for the analysis of cell proliferation and flow cytometry was performed to analyze cell cycle distribution. DNA fragmentation analysis and Annexin V/pro...

The tin-doped TiO2 powders obtained by sol-gel and microwave-assisted methods were investigated. synthesis took place in a basic medium (pH 10, ammonium hydroxide, 25%) starting from tetrabutyl orthotitanate its parental alcohol. In the case of dopant, Tin(II) 2-ethylhexanoate as SnO2 precursor was used amount 1, 2, or 4 mol % SnO2. Based on thermal analysis data, thermally treated air, at 500 ...

Continuous SiC fiber is a kind of high–performance ceramic that combines many advantages, such as high strength, modulus, hardness and low density. It has excellent mechanical properties, high–temperature oxidation resistance, which could be applied essential reinforcement in advanced matrix composites (CMCs) the fields aerospace weaponry. Melt–spinnable polytitanocarbosilane (PTCS) an importan...

Bernd Winter, Ramona Weber, and Ingolf V. Hertel Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, Max-Born-Str. 2A, D-12489 Berlin, Germany Manfred Faubel Max-Planck-Institut für Strömungsforschung, Bunsenstr. 10, D-37073 Göttingen, Germany Luboš Vrbka and Pavel Jungwirth Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic and Center for...

A new kind of organic-inorganic hybrid complexes based on polyoxometalate were synthesized through symmetrically grafting two adeninyl groups onto Anderson-type MnMo(6) clusters and encapsulating the clusters by organic surfactants. The resultant complexes exhibited thermal-induced dynamic self-assembly behaviors which greatly depended on the ambient temperature and the chain length of cationic...

A simple, precise, accurate and sensitive Reverse phase high performance liquid chromatographic (RPHPLC) method for simultaneous estimation of Cefixime trihydrate and Erdosteine in combined capsule dosage form have been developed and validated. Drugs were resolved on a HiQ Sil C8 column (25cm X 4.6mm, 5μm), utilizing mobile phase of TetraButyl Ammonium Hydroxide (0.1 N aqueous) pH adjusted to 6...

Unique spindle-shaped nanoporous anatase TiO(2) mesocrystals with a single-crystal-like structure and tunable sizes were successfully fabricated on a large scale through mesoscale assembly in the tetrabutyl titanate-acetic acid system without any additives under solvothermal conditions. A complex mesoscale assembly process involving slow release of soluble species from metastable solid precurso...

Grafting of C-6, C-16 and C-18 alkyl chains onto the hydrophilic Mn-Anderson clusters (compounds 2-4) has been achieved. Exchange of the tetrabutyl ammonium (TBA) with dimethyldioctadecyl ammonium (DMDOA) results in the formation of new polyoxometalate (POM) assemblies (compounds 5-6), in which the POM cores are covalently functionalized by hydrophilic alkyl-chains and enclosed by surfactant of...