Effects of UV Irradiation by Light Emitting Diodes on Heterotrophic Bacteria in Tap Water.

Ultraviolet light emitting diodes (UV-LEDs) are small mercury-free devices that can be installed at the point of use (POU) of water for disinfection. Considering that heterotrophic bacteria are of concern in drinking water systems, we applied a flow-through UV-LED apparatus to dechlorinated tap water, and determined the heterotrophic plate count (HPC) in samples after UV-LED exposure (UV+) compared to samples without UV-LED application (UV-). The UV+ and UV- samples were maintained at 20°C to track HPC profiles during storage for 7 days.

Soluble fibrin monomer degradation products as a potentially useful marker for hypercoagulable states with accelerated fibrinolysis.

Background: Fibrin monomer (FM) and its complex (sFC) exist at high concentrations in hypercoagulable state blood. Two novel immunoassays for sFC (SF and FMC) using specific monoclonal antibodies (IF-43 and F405) were recently developed.

Methods: We measured the concentrations of thrombotic markers in 103 patients with DIC and thrombotic disorders.