<p>➀ A new hydrogen sensor developed by scientists at the University of Manchester promises to enhance safety and reliability in the transition to clean hydrogen energy.</p><p>➁ The sensor, which operates on 'p-doping', can detect trace amounts of hydrogen within seconds, outperforming current commercial detectors.</p><p>➂ Tested in real-world scenarios, the sensor successfully detected leaks from pipelines, monitored hydrogen diffusion, and performed airborne leak detection using drones.</p>