Flow chemistry is the development and study of chemical reactions whereby reactants are combined by pumping fluids, including solutions of reagents, through tubes at known rates. The relative ...

Flow cytometry is a technology for assaying labelled cells suspended in fluid and passed through a detector. The labels are usually fluorescent and used for counting and sorting the cells in a signal ...

November 24, 2025 • Our annual reading guide returns with 380+ new titles handpicked by NPR staff and trusted critics. Find 13 years of recommendations all in one place — that's more than 4,000 great ...