Gram staining remains one of microbiology’s most essential techniques, offering rapid differentiation between Gram-positive and Gram-negative bacteria. By exploiting differences in cell wall structure ...

Gram staining was developed in the 1800s as a quick and simple procedure to distinguish between Gram positive and Gram negative bacteria. It is one of the first laboratory techniques taught to ...

With delicate hues of purple and pink, a lab technique called gram staining has reliably characterized bacteria for more than a century. Yet many scientists are mistaken about why the vivid method ...