Active microgel particle swarms for intrabronchial targeted delivery.

Summary: Treating lung diseases can be tricky because inhaled medicines often go to the wrong places, and medical tools can't easily reach deep into the lung's twisting tubes. To fix this, scientists created tiny, magnetic "microrobots" made of a soft gel. By using magnets, doctors can steer a swarm of these tiny robots deep into the lungs, right where the medicine is needed. They can even change shape to squeeze through tight spaces and climb up tubes! Doctors can track them using X-rays and CT scans to make sure they stay on the right path. This new invention could make treating lung diseases much safer and more exact.