Artificial neurons that mimic the brain’s efficiency are here, using 1/10th the voltage and 1/100th the power of others.
These neurons can, for the first time, process information from living cells without an intermediary device amplifying or modulating the signals, the researchers say.
While some artificial neurons already exist, they require electronic amplification to sense the signals our bodies produce, explains Jun Yao, who works on bioelectronics and nanoelectronics at UMass Amherst. The amplification inflates both power usage and circuit complexity, and so counters efficiencies found in the brain.
The neuron created by Yao’s team can understand the body’s signals at their natural amplitude of around 0.1 volts. This is “highly novel,” says Bozhi Tian, a biophysicist who studies living bioelectronics at the University of Chicago and was not involved in the work. This work “bridges the long-standing gap between electronic and biological signaling” and demonstrates interaction between artificial neurons and living cells that Tian calls “unprecedented.”
Wow it’s really cool, there’s potential to do many things, such as making a processor chip based on proteins instead of silicon. Obviously not for replacing current CPUs but to do analog computing - the kind of computing that both artificial AND natural intelligence do - with really low power. According to the experiments, 1/10th of the voltage (about 0.1V), which means 1/100 of the power since power comes from voltage squared.
As many other cool things we see in spectrum and nature magazines, this is very very far from being a start up and I may never hear from this topic ever again. But it’s dang cool how they found a bacteria that produces conductive wires from proteins.