Now showing items 21-30 of 51
5-Hydroxytryptamine Evokes Endothelial Nitric Oxide Synthase Activation in Bovine Aortic Endothelial Cell Cultures
(Blackwell Science Ltd, 1999-08)
Sonogels and derived materials
(John Wiley & Sons, Ltd., 1999-05)
Nowadays the sol–gel process is used by an increasing number of researchers for the preparation of various products, including bulk materials, films, membranes or fibers. The application of ultrasound (sonocatalysis) to ...
Synthesis and characterization of nanocomposite films with a titania glass matrix by the sol–gel route
(John Wiley & Sons, Ltd., 1999-05)
Films of thickness ∼3 µm containing nanosized metal particles of iron, nickel and copper respectively were grown on a Corning glass slide using a sol-gel technique. The particle sizes had values in the range 6.8 to 20.1 14nm. ...
Synthetic nano-scale fibrous extracellular matrix
(John Wiley & Sons, Inc., 1999-07)
Biodegradable polymers have been widely used as scaffolding materials to regenerate new tissues. To mimic natural extracellular matrix architecture, a novel highly porous structure, which is a three-dimensional interconnected ...
Silsesquioxanes as models of silica supported catalyst I. [3-(Diphenylphosphino)propyl]-hepta[propyl]-[octasilsesquioxane] and [3-mercapto-propyl]-hepta[propyl]-[octasilsesquioxane] as ligands for transition-metal ions * Dedicated to Professor Manfred Weidenbruch on the occasion of his 60th birthday.
(John Wiley & Sons, Ltd., 1999-04)
The ligand [3-(diphenylphosphino)propyl]-hepta[propyl]-[octasilsesquioxane] (dpps) can be prepared by reacting [3-chloropropyl]-hepta[propyl]-[octasilsesquioxane] (cs) with KP(Ph) 2 . The transition-metal complexes ...
Monosubstituted octasilasesquioxanes
(John Wiley & Sons, Ltd., 1999-04)
Octasilasesquioxanes are cube-shaped molecules consisting of a Si 8 O 12 core and eight reactive sites, which can, in principle, all be functionalized differently. This review article provides an overview of the work, ...
Uptake of positron emission tomography tracers in experimental bacterial infections: a comparative biodistribution study of radiolabeled FDG, thymidine, l -methionine, 67 Ga-citrate, and 125 I-HSA
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1999-04)
The purpose of this study was to evaluate the localization of positron emission tomography (PET) tracers [2-deoxy-2-fluoro- d -glucose (FDG), thymidine, and l -methionine] in sites of bacterial infection, and to contrast ...
Organosilanetriols: model compounds and potential precursors for metal-containing silicate assemblies Dedicated to Professor Manfred Meisel on the occasion of his 60th birthday
(John Wiley & Sons, Ltd., 1999-04)
The chemistry of silanols and related amino-silanes is a topic of current interest in view of their possible applications as building blocks in materials science. In particular, discrete silanetriols and triaminosilanes ...
Metanephric rat-mouse chimeras to study cell lineage of the nephron
(John Wiley & Sons, Inc., 1999)
The nephron is derived from the ureteric bud and metanephric mesenchyme and develops into a complex epithelial structure with a wide variety of phenotypes along its length. This segmental variation in expression of molecules ...
Empirical validation of a two-state kinetic model for the B-Z transition of double-stranded poly[d(G-m 5 C)]
(Springer-Verlag; Society of Biological Inorganic Chemistry, 1999-12)
C)] in terms of the salt concentration, the absolute temperature, and the cooperativity index. The validity of the formula was tested using circular dichroism spectroscopy after variation of the type of salt (NaCl, MgCl 2 ...