Berlin 2024 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 25: Magnetic Imaging and Sensors II

MA 25.10: Vortrag

Mittwoch, 20. März 2024, 12:00–12:15, EB 301

Eco-sustainable Printed Magnetoresistive Sensors — •Lin Guo, Rui Xu, Eduardo Sergio Oliveros Mata, Xuan Peng, Proloy Taran Das, Xilai Bao, Ihor Veremchuk, Larysa Baraban, and Denys Makarov — Helmholtz-Zentrum Dresden-Rossendorf e.V.,01328 Dresden, Germany

As an important member of printed electronics, printed magnetic sensors have revealed potential in industrial production, consumer electronics, etc, relying on large scale, low cost and high production fabrication[1]. However, the escalated demand and short lifespan for electronics contribute significantly to the accumulation of electronic waste, meanwhile magnetic sensors usually contain hazardous elements. Therefore, there is a growing demand for eco-sustainable printed magnetoresistive sensors. Firstly, we introduced self-healing property to printed magnetoresistance sensors to extend their lifetime[2]. Going a step further, here we designed biocompatible and biodegradable printed magnetic sensors to address the e-waste issues using non-toxic iron particles bonded with edible starch. Benefiting from a completely eco-friendly printing process and food-grade materials, these sensors can be applied not only on conventional substrates but also on surfaces like plants, human skin, and nails, furthermore they demonstrate washability and degradability in aqueous environments. By virtue of these advantages, we demonstrated their application as customized speedometers, IoTs, and human-machine interfaces.

[1]D. Makarov et al, ChemPhysChem 2013, 14, 1771. [2]R. Xu, et al, Nature Communications 2022, 13, 6587.

Keywords: Magnetoresistive Sensors; Printable electronics; Eco-sustainable