Nanochip could heal injuries or regrow organs with one touch by a device that instantly delivers new DNA or RNA into living skin cells to change their function.
What’s a nano chip?
A nanochip is an electronic integrated circuit so small that it can only be measured in the
nanometer scale. The nanochip scale has been the goal of modern technology. With nanochips it would be possible to have computers the size of micro SD cards but thousands of times more powerful because so many more components could fit in a very small space.
Researchers have used elastic silicone and rat muscle cells to create a freely swimming jellyfish.
Colorized image of the tissue-engineered jellyfish, "swimming" in a container of ocean-like saltwater. Dubbed "Medusoid," the bioengineered construct is made from silicone rubber and powered by lab-grown heart tissue. It was built in a proof-of-concept study at Caltech and Harvard for designing muscular pumps for biomedical applications. (Credit: Caltech and Harvard)
“A big goal of our study was to advance tissue engineering,” says Janna Nawroth, a doctoral student in biology at the California Institute of Technology (Caltech)and lead author of the study. “In many ways, it is still a very qualitative art, with people trying to copy a tissue or organ just based on what they think is important or what they see as the major components—without necessarily understanding if those components are relevant to the desired function or without analyzing first how different materials could be used.”
These researchers previously transformed scar-forming cardiaccells into beating heart muscle-like cells in petri dishes. Now they have accomplished this transformation in living animals, and with even greater success.
In laboratory experiments with mice that had experienced a heart attack, the team delivered three genes that normally guide embryonic heart development —together known as GMT — directly into the damaged region. Within a month, non-beating cells that normally form scar tissue transformed into beating heart-muscle cells. Within three months, the hearts were beating even stronger and pumping more blood.
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