<p>➀ Researchers from SMART DiSTAP have developed a groundbreaking near-infrared (NIR) fluorescent nanosensor for real-time iron detection in plants; </p><p>➁ The sensor can differentiate between Fe(II) and Fe(III) and monitor iron uptake and transport in real-time; </p><p>➂ This technology could lead to more sustainable agriculture and improved crop health.</p>