You can find academic and industrial groups doing some relevant work, but there isnt a focus on building complex molecular systems. In that respect, Japan is first, Europe is second, and were third. – K. Eric Drexler
The writer who neglects punctuation, or mispunctuates, is liable to be misunderstood for the want of merely a comma, it often occurs that an axiom appears a paradox, or that a sarcasm is converted into a sermonoid. – Edgar Allan Poe