The photocatalytic inactivation of Gram negative Escherichia coli and Gram positive Lactobacillus helveticus by both TiO2 and ZnO with 365-nm ultraviolet (UV) light was studied in a batch reactor. Almost all the initial E. coli cell (10 CFU/ml) were inactivated in 40 min in the presence of 2 g/l ZnO. Photocatalytic inactivation of bacteria was found to follow first order kinetics with the highe...

Introduction: The functional effects of orexin-B on the calcium spikes and excitability of the neuronal soma membrane of garden snail, Helix aspersa were studied. Methods: Conventional intracellular recording, under the current clamp conditions was performed to examine the effects of orexin-B on the configuration and electrophysiological properties of calcium spikes. Results: Application o...

introduction: the role of serotonergic fibers in avoidance learning is controversial. involvement of the dorsal raphe nucleus (drn), the main source of hippocampal projecting serotonergic fibers in acquisition, consolidation and retrieval of passive avoidance (pa) learning, was investigated by functional suppression of this area. materials and methods: drn functional inactivation was done by li...

Seven species of bacterial biothreat agents were tested for susceptibility to UV light (254 nm). All gram-negative organisms tested required <12 mJ/cm(2) for a 4-log(10) reduction in viability (inactivation). Tailing off of the B. anthracis spore inactivation curves began close to the 2-log(10) inactivation point, with a fluence of approximately 40 mJ/cm(2), and 3-log(10) inactivation still was...

The brain rennin-angiotensin system (RAS) has an important role in the regulation of cardiovascular function. The aim of the present study was to determine the effect of reversible inactivation of the central amygdaloid nucleus (Ace) in normotensive rats and rats with renal hypertension (2K-1C). Two groups of normotensive rats were selected for this study. In one group, hypertension was induced...

The brain rennin-angiotensin system (RAS) has an important role in the regulation of cardiovascular function. The aim of the present study was to determine the effect of reversible inactivation of the central amygdaloid nucleus (Ace) in normotensive rats and rats with renal hypertension (2K-1C). Two groups of normotensive rats were selected for this study. In one group, hypertension was induced...

Introduction: The role of serotonergic fibers in avoidance learning is controversial. Involvement of the dorsal raphe nucleus (DRN), the main source of hippocampal projecting serotonergic fibers in acquisition, consolidation and retrieval of passive avoidance (PA) learning, was investigated by functional suppression of this area. Materials and Methods: DRN functional inactivation was done by li...

Background and Aims: Fresh Frozen Plasma (FFP) is one of blood components. The risk of transmission of viruses from blood components regardless selection of blood donors and screening donated blood still remains. There are several methods for viral inactivation. In this study methylene blue (MB) photo inactivation process was used for inactivating viruses. Materials and Methods: In this study M...