C3Nano, a spinout of Stanford University that produces conductive inks and films, closed a $15m series D round on Wednesday co-led by venture capital firm GSR Ventures.

The round was co-led by conglomerate Nissha Printing and diversified holding group Xinjiang Guoli Minsheng Equity Investment. It further included Phoenix Venture Partners and a range of undisclosed investors, including a technology company based in Silicon Valley.

Founded in 2010, C3Nano is based on research conducted by Zhenan Bao at Stanford University’s chemical…