May 28, 2001 | Source: New Scientist
Genetically engineered bacteria that function like microchip components are being developed at Oak Ridge National Laboratory.
Researchers modified Pseudomonas putida cells to produce AND and OR gates. For the AND gate, they used chemical “inducers” as inputs. One causes a gene to make a protein that the second input inducer must have to express the output enzyme.
In theory, a single cell could do massively parallel computations.