2008 OCT 27 - (VerticalNews.com) -- "We demonstrate that the application of dynamic nuclear polarization (DNP) at X-band on H-1 nuclear magnetic resonance (NMR) signal of water under ambient condition, in combination with continuous-wave (cw) electron spin resonance (ESR), is a new and potentially powerful approach to study hydration and fluid dynamics of soft macromolecular assemblies. The source to amplify H-1 NMR signal is stable nitroxide radicals, also known as spin labels, that serve as reporter species to illuminate the interaction between the spin-label-containing molecular site and water," scientists in the United States report ...read more

  2008 SEP 29 - (VerticalNews.com) -- According to recent research from Szczecin, Poland, "Two samples containing gamma-Fe2O3 (maghemite) magnetic nanoparticles homogenously dispersed at a concentration of 0.1% in two different polymer matrices, poly(ether-ester) multiblock copolymers of poly(trimethylene terephthalate)-block-poly(tetramethylene oxide) (PTT-b-PTMO) and poly(ethylene naphthalate)-block-poly(tetramethylene oxide) (PEN-b-PTMO), have been prepared. The polymer filler was in the form of suspension containing magnetic nanoparticles arranged in agglomerates with a size of less than 100 nm. ...read more

  2008 SEP 29 - (VerticalNews.com) -- According to a study from Romania, "The aim of this work was to prepare a nanocapsule by interfacial polymerization of ethyl-2-cyanoacrylate monomer in an oil-in-water emulsion. The chemical nature of the individual system components and the nanocapsule was investigated by high-resolution H-1 and C-13 nuclear magnetic resonance."

  "The nanocapsule mean size and polydispersity were determined by photon correlation spectroscopy. The effect of different variables such as the organic solvent, oil concentration and stirring rate on the nanocapsule size was evaluated," wrote M. Bogdan and colleagues ...read more