Anion dependent ion pairing in concentrated ytterbium halide solutions.

We have studied ion pairing of ytterbium halide solutions. THz spectra (30-400 cm) of aqueous YbCl and YbBr solutions reveal fundamental differences in the hydration structures of YbCl and YbBr at high salt concentrations: While for YbBr no indications for a changing local hydration environment of the ions were experimentally observed within the measured concentration range, the spectra of YbCl pointed towards formation of weak contact ion pairs. The proposed anion specificity for ion pairing was confirmed by supplementary Raman measurements.

Elucidation of Plasma-induced Chemical Modifications on Glutathione and Glutathione Disulphide.

Cold atmospheric pressure plasmas are gaining increased interest in the medical sector and clinical trials to treat skin diseases are underway. Plasmas are capable of producing several reactive oxygen and nitrogen species (RONS). However, there are open questions how plasma-generated RONS interact on a molecular level in a biological environment, e.

Class II MHC antigens in vivo induced by the diabetogen streptozotocin in BALB/c mice.

Immunologic reactions are involved in the pathogenic pathway of hyperglycemia development induced by multiple subdiabetogenic doses of streptozotocin (STZ) in mice. Recently, we have reported that STZ, a nitrosurea derivative, can act in vivo as hapten for T lymphocytes, as assayed by applying the popliteal lymph node assay. In subsequent experiments, induction of Class II major histocompatibility (MHC) antigens by STZ were evaluated in BALB/c mice.

T cell-dependent class II major histocompatibility complex antigen expression in vivo induced by the diabetogen streptozotocin.

Immune reactions are involved in the low-dose streptozotocin (STZ)-model of hyperglycemia (1). By means of the popliteal lymph node assay, we demonstrated that T cell-dependent lymphoproliferation can be evoked by STZ (2). The present report shows that class II MHC antigen expression is readily inducible in multiple organs by a single dose of STZ injected subcutaneously (s.