Longevity enthusiasts are buzzing after reports surfaced that Robert F. Kennedy Jr. may be a fan of methylene blue. President Donald Trump’s pick to lead the Department of Health and Human ...

size and arrangement of bacteria. 1. Use the smear prepared in the previous procedure. Staining is done at the sink. 2. Add several drops of Methylene blue, enough to cover the smear, and wait 1 min.

Examples include methylene blue, basic fuchsin, and crystal violet. These dyes directly bind to and stain the negatively charged surface ... This procedure simultaneously kills and attaches the ...