A team from the Vienna University of Technology set a new world record this week: 3D printed nano objects in just 4 minutes. Their process, called two-photon lithography, uses a focused laser to harden liquid resin.

Applications? Consider how this process could be used to make micro objects for biomedical research and treatment.

Photo above is a human figure smaller than a grain of sand. Photo below is a detailed cathedral about 50 microns in length.

Read more and see additional photos at Reuters’ World in Nano.