Slashdot Mirror
Bacterial Printing Press
juushin writes "New Scientist has reported that scientists at Harvard University have created a bacterial printing press that can be reconfigured to print complex patterns of bacteria. The technology is reported to have applications in studying biofilms, communication between bacteria (and colonies of bacteria), and the interaction of bacteria and surfaces. Of medical interest, these applications may lead to a better understanding of how to prevent bacterial infections."
it's a neat process. before i read the article i'd pictured an inkjet-esque approach. probably a good thing they didn't go that way --- can you imagine how much consumables would cost? to say nothing of issues related to poor quality drivers...
He takes a tip from the silicon chip makers and uses the same type of technology to etch a pattern in a wafer. Then he creates a mold (like a mask, not like the stuff growing in the crotches of slashbots) which he can use repeatedly as a printing template.
Since a lot of bacteria grow resistant to antibiotics, it makes sense to use this kind of "printing press" to study how they create their protective biofilm. As a species, we are slowly succumbing to our own success at killing off bacteria. However the rise of super-bacteria that are immune to our medicines is a huge worry. If this type of research can shine some light on why these bacteria are so resistant and how we can control them to be less dangerous to us, then we will be able to hold off our extinction for a few more years.
Stanislaw Lem predicts it about 20-30 years ago in some of his novel.
This sounds like a good way to study computational properties of bacterial colonies. By printing them like this, perhaps they would be able to get them to behave in ways that would perform useful information processing. It might also end up acting as some sort of "interface" to DNA computation.
Whether we'd be able to get them to behave in reproducible ways would be the question.
Here are some links. The first has some interesting photos of bacterial colonies-- similar to cellular automata, because hey! They are! And the second is a link to an article on bacterial colony computation. Or maybe they're both to Goatse. You won't know until you click.
http://alnk.org/dankwish
http://alnk.org/nearseal
Intolerance for ambiguity is the mark of the authoritarian personality.
Just remember not to use anti-bacterial soap on your bacterial printer. Otherwise, you will void the warrantry.
I can't possibly be the only one who immediately thought "game of life" ... can I?
Too bad it'd never work - not unless you could find some REALLY weird bacteria, anyway.