Novel material for printed circuits: Two test cuboids one centimeter wide from the 3D printer. The printed electronic sensors can be seen in the background. Image: Empa
Novel material for printed circuits: Two test cuboids one centimeter wide from the 3D printer. The printed electronic sensors can be seen in the background. Image: Empa - Intelligent packaging with sensors that monitor goods, such as vegetables, on long transport routes is a trend for the future. Yet printed and disposable electronics also cause problems: Metals in printing inks are expensive - and disposing of them in an environmentally sound manner is costly and exacerbates the problem of electronic waste. A new solution from researchers aims to remedy this. More precise, faster, cheaper: Researchers all over the world have been working for years on producing electrical circuits using additive processes such as robotic 3-printing (so-called robocasting) - with great success, but this is now becoming a problem. The metal particles that make such "inks" electrically conductive are exacerbating the problem of electronic waste.
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