Yes thank you, posts like this are what make HN good. It's not necessarily news or even related to technology but interesting for us hacker types nonetheless.
Until you implement it at tiny scale using COTS integrated circuit technology or some semi-hypothetical individual atoms basis. MEMS chips are high tech.
Perhaps you could make a nano (well, micro) scale peristaltic pump out of a really small geneva linkage. Or gears for a little robot that floats in your bloodstream or something like that.
