Magnetoliposomes (MLs) are phospholipid vesicles encapsulating magnetic nanoparticles utilised as contrast agents for targeted molecular Magnetic Resonance Imaging (MRI). There are different methods of preparation and characterization of liposomes containing ultra small paramagnetic iron oxide ions (USPIOs) i. e. lipid film hydration method [1] or reverse phase evaporation [2]. In this work as ...

BACKGROUND Magnetic liposomes (MLs) are phospholipid vesicles that encapsulate magnetic and/or paramagnetic nanoparticles. They are applied as contrast agents for magnetic resonance imaging (MRI). MLs have an advantage over free magnetic nanocores, in that various functional groups can be attached to the surface of liposomes for ligand-specific targeting. We have synthesized PEG-coated sterical...

A quantitation procedure for hepatitis B core antigen (HBcAg) in serum without prior removal of antibodies to HBcAg is described. The virus nucleoprotein core was released from hepatitis B virus (HBV) particles by treatment with Nonidet P-40 detergent and allowed to form immune complexes with homologous antibodies to HBcAg present in the sera of HBV-infected individuals. After precipitation wit...

The factors which distinguish molten salts from other non-aqueous solvents are described and the range of systems available outlined. Some illustrative examples of the various classes of reactions carried out in molten salts are then given. These include the exchange of halides and pseudohalides in organic and inorganic compounds, organic chlorinations, eliminations and rearrangements, a consid...

Quisqualate, a glutamate analogue, displaced L-[3H]glutamate binding in a biphasic manner, corresponding to "high-affinity" and "low-affinity" binding sites. High-affinity quisqualate sites were termed "quisqualate-sensitive L-[3H]glutamate" binding sites. Quisqualate-sensitive L-[3H]glutamate binding was regionally distributed, with the highest levels present in the cerebellar molecular layer....

Three building blocks of the antenna complexes of the cyanobacterium Westiellopsis prolifica were studied: PEC(X), which is similar to the ot-subunit of phycoerythrocyanin (PEC), trimers of PEC and monomers derived from these by deaggregation with KSCN. The fit of the fluorescence decay curve of PEC(X) requires at least four exponentials, although it supposedly contains only one chromophore. Th...