HYPER Hydrogel 3D Printing Pen

One value of precise electroplate deposition of materials like platinum can create extremely efficient surface areas useful for catalyzing chemical reactions. 3D printed filters and fuel cells that operate orders of magnitude better than what's possible with lithographic etching, roll to roll printing, molding or subtraction milling techniques.

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http://www.3ders.org/articles/20141213-hyper-hydrogel-3d-printing-pen-creates-nanoscale-3d-structures-in-platinum.html

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