A Brisbane scientist is preparing to begin field trials of an invention expected to get life-saving vaccines to children around the world immeasurably cheaper and years faster than is currently possible.

And it's all without the use of needles.

A nanopatch can fit on a fingertip.

Professor Mark Kendall is the inventor of the Nanopatch - a strip smaller than a postage stamp that has thousands of microscopic points, which can inject disease-breaking vaccines into the skin.

For nine years, Professor Kendall and a team of international researchers have been working on the "needle-less" vaccination in the laboratory.