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Scientists develop printable water sensor

Scientists develop printable water sensor

X-ray investigation reveals functioning of highly versatile copper-based compound. When dried, for example in a water-free solvent, the sensor material turns purple. Credit: UAM, Verónica García Vegas A new, versatile plastic-composite sensor can detect tiny amounts of water. The 3d printable material, developed by a Spanish-Israeli team of scientists, is cheap, flexible and non-toxic and changes its colour from purple to blue in wet conditions. The researchers lead by Pilar Amo-Ochoa from the Autonomous University of Madrid (UAM) used DESY’s X-ray light source PETRA III to understand the structural changes within the material that are triggered by water and lead to the observed colour change. The development opens the door to the generation of a family of new 3D printable functional materials, as the scientists write in the journal Advanced Functional Materials (early online view). The sensor material can be printed in various forms. The workpieces shown are each […]

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