One step instead of many: a rapid test could catch a common infection in a single visit

For patients, testing for syphilis today can mean several lab steps and a wait. Researchers have built a one-step test using layered gold and silver particles that boost the signal, aiming to confirm an infection earlier and in one clinic visit. The work, published in the peer-reviewed journal ACS Sensors, still needs larger studies before approval, but the team hopes testing, diagnosis and treatment could one day happen on the same day.

SDG 3 · Good health and well-being — Mechanism: tech innovation