A small step for a man

Potentially, a huge step forward in development of technology for delivering nano-drugs:

Nanoparticles able to make basic decisions about whether to release their contents offer the prospect of delivering drugs exactly when and where they are needed, say chemists.

Their particles only respond to two distinct and simultaneous stimuli, acting like an "AND" computer logic gate that only produces an output signal if it receives two input signals.

From a system perspective, this technology adds the Control component, which makes the system complete. Huge.