The cell wall of most bacteria has an overall net negative charge and thus can be stained directly with a single basic (positively charged) stain or dye. This type of stain allows us to observe the ...

In contrast to direct stains that bind to bacteria directly, a negative stain colors the background of a smear rather than the bacteria. These stains have negatively charged functional groups so they ...

Cooke says that today automated technologies have been developed in each of these areas at GNF, giving the institute a solid, high-throughput toolbox to explore biology at a level of detail few ...