Living cells are sustained by countless chemical reactions that must be carefully regulated to maintain internal order and ...

Microrobots have long promised precision drug delivery inside the human body, but making them practical has remained difficult. Many designs are complex, expensive to manufacture, or hard to control ...

Many of the enzymes, receptors and eicosanoid metabolites of the arachidonate cascade are important therapeutic targets, particularly for inflammatory disease. Inhibitors of the cyclooxygenase and ...

A catalyst is a substance that speeds up a chemical reaction. The catalyst is not used up or chemically changed during the reaction. Enzymes are catalysts that work inside the cells of living ...