Living Analog Circuits

Living analog circuits have been made out of living cells of bacteria by researchers at MIT. Using just 3 transcription factors as switches, analog computations of addition, multiplication, logarithms, and biochemical models can be performed through gene expression by manipulating DNA. The inputs are chemicals and the outputs can vary but include glowing varying intensities. The purpose is generally not for standard computing, but medical purposes that require small and more complex computations.

By Richard Wheeler (Zephyris) 2007. Lambda rep...

By Richard Wheeler (Zephyris) 2007. Lambda repressor protein bound to a lambda operator DNA sequence. From . (Photo credit: Wikipedia)

http://www.nature.com/nature/journal/v497/n7451/full/nature12148.html

http://www.sciencenews.org/view/generic/id/350549/description/News_in_Brief_Analog_circuits_boost_power_in_living_computers

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