Hewlett-Packard scientists have successfully created a simple circuit element that can build tiny powerful computers to do performs taks such as biological functions. Today, they could create the circuit based on memristors are that small as as 15 nanometers. The smallest compound in today's semiconductors are 45 nanometers.
Very impressive! For further reading, click on the link below.
H.P. Reports Big Advance in Memory Chip Design