From 2007.igem.org

Logic Artificial Biological Circuit (ABC) and logic Integrated Circuit (IC) are both composed of "components" and "wires". Though people have been enjoying the advantages of Ultra Large Scale IC (ULSI), we still cannot implement in real experiments a somewhat large-scale logic ABC with several levels of logic gates in it.

Our project is to provide a new method for building up a fully extensible logic ABC. For some biological convenience, we are going to produce such biological logic gates as NAND, NOR, NOT which are exactly the basis for modern logic IC. More importantly, several similar factors limit the scale of ABC and IC, such as, size and power of the components, interference between wires, and standardization of intercommunication. Cis-acting components in ABC may present a smaller scale and power request than trans-acting ones, while the other two factors can be achieved by novelly-designed and calibrated wires. We are also going to demonstrate an ABC made by these biological logic gates and wires.