A research collaborative between the University of Hamburg and DESY has developed a process suitable for 3-D printing that can be used to produce transparent and mechanically flexible electronic circuits. The electronics consists of a mesh of silver nanowires that can be printed in suspension and embedded in various flexible and transparent plastics (polymers). This technology can enable new applications such as printable light-emitting diodes, solar cells or tools with integrated circuits, as Tomke Glier from the University of Hamburg and her colleagues report in the journal Scientific Reports. The researchers are demonstrating the potential of their process with a flexible capacitor, among other things.