Sweat does more than just cool down an overheating body. Measuring the chemical makeup of an individual’s sweat—specifically the levels of chloride, a chemical component of salt—can serve as an early warning system to help inform the diagnosis of cystic fibrosis, a genetic disease that damages the lungs and digestive system.

How many times have you stared at a home COVID-19 test, waiting for the faint line that confirms an infection? Those home antigen tests often fail to detect a recent infection or one with no symptoms. A PCR test is more accurate, but it must be done by a medical lab and the results take days to deliver.

Patients with some cancers, autoimmune diseases, and metabolic disorders often endure time-consuming intravenous (IV) infusions to receive the best protein-based treatments available. Because these protein therapeutics require high doses to be effective and are typically formulated at low concentrations to remain stable, IV infusion has been, until now, the only option.