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These small developments are hugely exciting to me, primarily because they move us a little closer to the inevitable future of biological machines in our bodies
by ignostic 14y ago
These small developments are hugely exciting to me, primarily because they move us a little closer to the inevitable future of biological machines in our bodies.
Imagine little robots that crawl through your veins clearing out cholesterol, or hunting down cancer cells and signaling the immune system to attack them. We'll get there - probably sooner than most people think.
- Someone 14y agoI think that, if we mamage to do that, the biochemists will win that race, not the lithographers. Veins have the (for this goal) unfortunate property of repeatedly splitting into less wide veins. I think macrophages are the largest cells in the blood; they typically are 20 micrometer or 2E-5m in diameter. To get there, this thing would have to shrink by a factor of 100 linearly, or 10,000 in area. That's about 13 Moore's law iterations or 20-ish years. I doubt we will get those from silicon. And that's ignoring the fact that capillaries are 5-10 micrometer; AFAIK, lots of cells have to fold to get through them. Because of that, this 'ingestible' claim aims more at stuff working in your guts than at stuff making it into the bloodstream that way.
- damian2000 14y agoIts funny that when the word cyborg is mentioned, you immediately think about people with obvious physical enhancements, but micro machines like this would basically be invisible to other people.