Ruthenium red

Ruthenium red is a chemical dye used in biological research to block specific cell channels called calcium channels. These channels allow calcium ions to enter cells, which is vital for processes like muscle contraction and nerve signaling. By inhibiting these channels, ruthenium red helps scientists study how calcium influences cell functions. It's particularly useful in neuroscience and cell physiology to understand signal transmission and cellular responses. Despite its effectiveness, it’s mainly a research tool and isn't used as a medication.