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Consider a "cartridge" of sorts. Is it possible to construct a "pinhole" in the cartridge such that only one molecule will pass through at a time? If so, what sort of equipment would I need to construct such a pinhole, or what sort of company would I need to contact? (The cheaper the method, the better.)

For reference, the molecules in question are deoxribonucleotides, which are about 13 angstroms or 1.3 nanometers in diameter. The molecules would I believe be in the state of a gas.

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    $\begingroup$ For those of us not familiar with DNA analysis, you might post the physical dimensions of these four famous molecules. But in any case, what would you do with a single molecule floating in the exterior gas? $\endgroup$ – Carl Witthoft Apr 3 '17 at 13:40
  • $\begingroup$ Very tiny holes can be "drilled" into metal foils using electron beam lithography. It will not be cheap though ! $\endgroup$ – William Hird Apr 4 '17 at 16:20
  • $\begingroup$ @CarlWitthoft the question has been updated with that information, I'm sorry I couldn't provide it sooner. $\endgroup$ – heather Jun 20 '17 at 0:06
  • $\begingroup$ im sure the answer is no, but try physics.stackexchange.com $\endgroup$ – agentp Jun 22 '17 at 3:15

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