Is black pepper the new secret weapon against fat? A recent paper in the Journal of Agricultural and Food Chemistry claims that the piperine, an ingredient in black pepper, has the power to stop ...

However, when grown on agar in a Petri dish, each individual cell divides multiple times to form a visible colony. If we count the number of individual colonies of bacteria on the plates ...

the quantity of target molecules is easily determined by directly counting the fluorescent plaques in a Petri dish. The innovative feature of this strategy is that T7 phages are assembled with ...

In 1887, Julius Petri invented a simple pair of nesting glass dishes, ideal for keeping specimens of growing bacteria sterile—the 'Petri dish.' Science historian Howard Markel recounts the ...