Leiden physicists detect single nanoparticles in motion


It's pretty hard to spot a single 5 nanometer particle. Leiden physicists pulled it off by turning a 120 nm gold rod into a detector.

It's the tiniest of signals: a small dip in an otherwise noisy graph, lasting for a couple of microseconds. The blip signals that a 5 nanometer gold nanoparticle, has just passed by. Read the article