Key Facts
- Malaria parasites store tiny iron crystals that never stop moving while the cell is alive.
- The motion comes from breaking down hydrogen peroxide, a reaction similar to rocket fuel.
- Constant spinning may protect the parasite by removing toxic chemicals and keeping the crystals separate.
How the Crystals Move
Inside each malaria cell there is a small pocket filled with iron‑based particles called hemozoin. When the cell lives, these particles whirl around rapidly. The scientists found that the whirl is driven by a chemical that splits hydrogen peroxide into water and oxygen. The released energy pushes the crystals, much like a tiny rocket engine.
When the parasite dies, the particles stop instantly.
Why the Motion Helps the Parasite
The reaction also destroys hydrogen peroxide, which is poisonous to the cell. By turning it into harmless water and gas, the parasite avoids damage. The spinning also keeps the crystals from sticking together, allowing the parasite to store more iron safely.
What This Means for Medicine and Technology
These moving crystals are the first known self‑propelled metal particles in a living system. Scientists think that blocking this reaction could kill the parasite without harming human cells, making it a promising drug target.
In addition, engineers see a model for building microscopic robots that move on their own, using chemistry instead of batteries.
The study was reported in the journal Proceedings of the National Academy of Sciences.