Scientists at the University of Pennsylvania have created a shape-shifting microrobot that can help people automate the daily tasks of brushing, rinsing and flossing. The research report was published in the journal ACS Nano. The microrobots are constructed of catalytically and magnetically active iron oxide nanoparticles, and the researchers use magnetic fields to control their direction of movement, configuring them into toothbrush-like structures to clean plaque on the surface of teeth, or into thin floss-like threads on the teeth. move between. The microrobots can also generate antibacterial agents through catalytic reactions that kill harmful oral bacteria. The design of toothbrushes has remained largely unchanged for thousands of years, and the advent of electric toothbrushes has not changed this basic design concept.
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