A Working Transistor Built Out Of DNA Within A Living Cell

We're this close to having a usable biocomputer. Pretty much anything can be a computer, if it can compute logical functions, store data, and transmit information -- even living cells. A team at Stanford University has accomplished one of the the final tasks necessary to turn cells into working computers: They've created a biological transistor, called a transcriptor, that uses DNA and RNA instead of electrons and responds to logical functions. Drew Endy, an assistant professor of bioengineering...