New Hybrid Coating Transports Nanorobots

New Hybrid Coating Transports Nanorobots
new hybrid coating

Imagine a new hybrid coating that carries microscopic multifunctional nanorobots that can swim through body fluids and remove harmful bacteria and toxins? This may sound like something from a sci-fi movie, but it’s actually real technology being developed right now at the University of California San Diego.

According to the university, this nanorobot technology research is still in its early stages, but has the potential for future use to decontaminate and detoxify blood and other body fluids. In their tests, researchers used the nanorobots to treat blood samples contaminated with Methicillin-resistant Staphylococcus aureus (MRSA), and their toxins, which cause staph infections. And after only five minutes, these blood samples had three times fewer bacteria and toxins than untreated samples.

The Nanorobots Are 25 Times Smaller than a Human Hair

The nanorobots created at USC San Diego are so tiny that they’re about 25 times smaller than the width of a human hair. They are powered – made to swim through fluids – by ultrasound and they can travel up to 35 micrometers per second in blood.

In creating the new hybrid coating, researchers applied high-frequency sound waves to fuse separated membranes from both platelets and red blood cells to each other. They then coated the hybrid membranes onto gold nanowires using specific surface chemistry. However, since gold is expensive, the researchers are also experimenting with making the nanorobots out of biodegradable material, rather than gold.

“The idea is to create multifunctional nanorobots that can perform as many different tasks at once,” said Berta Esteban-Fernández de Ávila, a postdoctoral scholar in the research group at UC San Diego, on the university’s website. “Combining platelet and red blood cell membranes into each nanorobot coating is synergistic—platelets target bacteria, while red blood cells target and neutralize the toxins those bacteria produce.”

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