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 ...

THE usual method for staining bacterial and yeast spores requires three operations: the staining of both spores and vegetative cells by applying heat to the slide bearing the dye; the removal of ...

Upholstered bed frames can gather bacteria, dust mites, and allergens, so it's crucial to keep them clean. Cleaning experts ...

Most species of bacteria can be broadly divided into two groups, known as gram-positive and gram-negative. These categories reflect big differences in the microbes' biology, and they also dictate ...

You can probably just wipe it away. Pink or pinkish-orange stains at the water line usually are from bacteria known as Serratia marcescens, commonly called pink mold even though it is not mold or ...

Bacterial vaginosis is confined to an asymptomatic ... As an alternative, Gram-stain-based microbiological diagnosis of BV has been proposed. To perform a Gram stain, vaginal fluid or discharge ...

Removing such stains isn't straightforward ... creating a breeding ground for bacteria. Regular mattress cleaning is important; without it, you risk promoting the development of allergies ...