The simple method of checking vaginal pH discussed by Willyard 1 in your “Science on a Shoestring” special report is truly innovative. However, it is important to consider how safe it is to insert ...

Dr Yingfu Li, professor at McMaster University, and his team created a test for E. coli based on the Litmus test for pH. The test is a colorimetric sensor where existing Litmus dyes and pH papers ...

Researchers have invented a technique that uses inexpensive paper to make "microfluidic" devices for rapid medical diagnostics and chemical analysis. The innovation represents a way to enhance ...

Scientists in Uganda have devised a tool to test for vaginal infections that is so simple, even a child could—and did—make one. In 2000, scientists at the Rakai Health Sciences Program in Kalisizo ...