Engineers print high-performing wearable biometric sensors onto skin without heat

An international team of researchers from Penn State University (PA, USA) have developed flexible printed circuit boards for use as wearable sensors, that can be directly printed onto human skin, without the use of heat. The results of the study are available to read in ACS Applied Materials & Interfaces. "In this article, we report a simple yet universally applicable fabrication technique with the use of a novel sintering aid layer to enable direct printing for on-body sensors," commented Ling Zhang, Harbin Institute of Technology (Heilongjiang, China). Previously, the research team developed a flexible printed circuit board for use in...