This e-learning module gives an overview of the carbon-13 urea breath test (13 C-UBT) for Helicobacter pylori (H. pylori) infection. It describes a robust test for the diagnosis of gastric H. pylori ...

A team of researchers has developed a new biosensor that turns the invisible signals into visible color changes to detect urea levels in a simple way. The sensor works by combining gold nanoparticles ...