3D printing by direct laser writing produces micrometer-sized structures with precisely defined properties. Researchers have now developed a method to erase the ink used for 3D printing. In this way, the small structures of up to 100 nm in size can be erased and rewritten repeatedly. One nanometer corresponds to one millionth of a millimeter. This development opens up many new applications of 3D fabrication in biology or materials sciences, for instance.
from Geochemistry News -- ScienceDaily http://ift.tt/2qtX9Sv