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life-cycle assessment (LCA) of the two 3D printers and the CNC mill, including the materials and manufacturing of the machines themselves, transportation, energy use, material in the final parts, material wasted, and the end-of-life disposal of the machines.

Photovoltaics made from organic semiconductors that can be 3D printed to cover large areas also turn out to be better than their silicon-based counterparts at capturing solar energy in cloudy environments, writes Jenny Xie. The key is the ability of organic photovoltaics to generate electricity regardless of the angle of the sun's rays

Anti-counterfeiting techology using biomimicry - butterfly wings. Printed security images on products.

While so much of our lives have veered toward the digital, many organizations' operations still rely to some degree on paper. Innovative solutions to help minimize the impact of continued paper use include print-optimization technologies and more "sustainable" fonts. Now, Seiko Epson Corporation has developed what it believes to be the world's first compact office paper-making system capable of producing new paper from securely shredded waste paper with minimal use of water.

While so much of our lives have veered toward the digital, many organizations' operations still rely to some degree on paper. Innovative solutions to help minimize the impact of continued paper use include print-optimization technologies and even more "sustainable" fonts.