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Researchers at Harvard’s Wyss Institute for Biologically Inspired Engineering and the John A. Paulson School of Engineering and Applied Sciences (SEAS) developed a new 3D printing method.They use a miniature nozzle to spray silver ink that is solidified by lasers in midair to produce self-supporting 3D structures.
The application of this technology will probably be in advanced electronics circuits production or biomedical devices.
Here is the video of the process:
Source and more information:
http://www.pnas.org/content/suppl/2016/05/11/1525131113.DCSupplemental
http://www.pnas.org/content/113/22/6137.abstract
http://www.pnas.org/content/suppl/2016/05/11/1525131113.DCSupplemental/pnas.201525131SI.pdf
