Not in a flying car, but in biomedical implants, the future is racing toward us. It looks less like The Jetsons and more like Holy Fire—but it’s a near-future that could only be viewed as science fiction just a few years ago.
Researchers at Harvard University and Princeton University have made a crucial step toward building biological computers, tiny implantable devices that can monitor the activities and characteristics of human cells. The information provided by these “molecular doctors,” constructed entirely of DNA, RNA, and proteins, could eventually revolutionize medicine by directing therapies only to diseased cells or tissues.
The results will be published this week in the journal Nature Biotechnology.
“Each human cell already has all of the tools required to build these biocomputers on its own,” says Harvard’s Yaakov (Kobi) Benenson, a Bauer Fellow in the Faculty of Arts and Sciences’ Center for Systems Biology. “All that must be provided is a genetic blueprint of the machine and our own biology will do the rest. Your cells will literally build these biocomputers for you.”
And taking those ideas up a level or two, with a little help from molecular manufacturing, we have the nanotech dermal display:
In his book Nanomedicine, Volume I: Basic Capabilities, Robert A. Freitas Jr. describes (on page 204) a “programmable dermal display” in which a population of about 3 billion display pixel robots would be permanently implanted a fraction of a mm under the surface of the skin, covering a rectangle 6 cm x 5 cm on the back of the hand. Photons emitted by these pixel bots would produce an image on the surface of the skin. This pixelbot array could be programmed to form any of many thousands of displays. Each display would be capable of two functions: (1) presenting to the user data received from the large population of medical bots that roam the user’s body; (2) conveying instructions from the user to that same large population of bots. The display could be activated or deactivated by finger tapping on the skin.
That’s Seattle-based designer Gina Miller (aka Nanogirl) who worked with Freitas to develop an animation of the nanotech dermal display, which you can see here.
Mike Treder is a fellow of the IEET, and the Executive Director of the non-profit
Center for Responsible Nanotechnology, an organization working to raise awareness of the issues presented by advanced nanotechnology.
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