A team of researchers at the University of California, Los Angeles (UCLA) has introduced a virtual Gram staining technique that could transform how microbiologists stain and classify bacteria.

The first step in most bacterial staining procedures is the preparation of a smear. In a smear preparation, cells from a culture are spread in a thin film over a small area of a microscope slide, ...

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 ...

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 ...

Adding a little bleach or vinegar will kill the bacteria, but that alone won’t ... can cause orange to brown stain. When the stains are black or dark brown, as in your toilet, manganese is ...

View Full Profile. Learn about our Editorial Policies. “Many of these bacterial systems have been shown to be the evolutionary origin of different human immune systems,” said microbiologist Jens Hör, ...

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 ...

He found that different cells held different dyes. He used this research to develop effective staining techniques for studying bacterial and other tissues. He continued to do research instead of ...

“Gram stains show whether the bacteria in urine samples are gram positive or negative by staining them purple or pink,” says Miyatsuka. “Only the most experienced technicians can make ...

Multiple images of fluorescence-stained cells are captured and analyzed automatically for rapid and accurate bacterial cell counts. The QUANTOM™ Total Cell Staining Dye is a green fluorescent ...