These tiny particles look like paper flowers or desert roses. Doctors can use them to send medicine to a specific place in the body. Even better, the particles can be easily tracked with ultrasound because they scatter sound waves. They are made of extremely thin petals that arrange themselves into flowers. These flower particles are one to five micrometres in diameter, which is slightly smaller than a red blood cell.
Microscopic flowers to deliver medicines
A special class of particles delivers medicine through the bloodstream
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