Computing technology is now entering a new era of miniaturization, as engineers begin to design and assemble computers employing molecule-scale components. At the limits of this technology lie entire computers that will be smaller than cells and yet have the computing capacity of today's large mainframes. Future medical microorganisms incorporating these molecular-scale computers, or nanocomputers, as part of their structure will be able to perform extremely sophisticated biological repairs. Since these artificial organisms will be so unlike any in nature today, we will probably think of them as microscopic machines rather than as organisms. We could call them cell repair devices.
This image is a conceptual drawing of a nanotechnological-derived cell repair device. This scenario for repair calls for repair devices engineered to atomic precision which will have a complete or nearly complete ability to characterize and order biological matter at the molecular, cellular, and tissue level.
Cryonics: Reaching for Tomorrow, Alcor Life Extension Foundation, Tucson, AZ, December 1993, 1998, page 23. Based closely on images in the original source: Michael G. Darwin, "The Anabolocyte: A Biological Approach to Repairing Cryoinjury," Life Extension Magazine: A Journal of the Life Extension Sciences 1(July/August 1977):80-83.