When someone gets hurt or commits a crime, figuring out what drugs they took can be crucial. Usually, experts look for drugs in blood or other body fluids. But what if those aren't available? That's where things get tricky. Sometimes, the only clues left are on clothes, bedding, or other items. These items can have biological materials like vomit or stains that migh...

Steroid hormones play a big role in our bodies, controlling many important functions. To understand how they work and how they relate to health issues, scientists need accurate ways to measure them in our bodily fluids. One exciting method combines Fe3O4/reduced graphene oxide (Fe3O4/rGO) nanocomposite with a technique called liquid chromatography - quadruple isotope...