3D - printing company Nanoscribe is producing tiny robotic spirals to deliver sperm cells to eggs . Using a process involving two - photon polymerisation , Nanoscribe is able to produce structures 250 times finer than a human hair . The " spermbot " can help healthy , idle sperm reach their final destination , using Oliver Schmidt , Professor at the Leibniz Institute for sperm State and Materials Research . Although the spermbot has been successfully trialled in a petri dish with the aid of high - resolution microscopy to guide the robot , when tested inside human tissue , the resolution fails and the robot can not see the nanobot .
3D-printing company Nanoscribe is producing tiny robotic spirals to deliver sperm cells to eggs. Using a process called two-photon polymerisation, Nanoscribe is able to produce structures 250 times finer than a human hair. The "spermbot" could help healthy, idle sperm reach their final destination, said Oliver Schmidt, Professor at the Leibniz Institute for Solid State and Materials Research. Although the spermbot has been successfully trialled in a petri dish with the use of high-resolution microscopy to guide the robot, when tested inside human tissue, the resolution fails and the researchers cannot see the nanobot.