Dresden 2026 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 49: Magnetic Imaging, Information Technology, and Sensors

MA 49.6: Vortrag

Donnerstag, 12. März 2026, 16:15–16:30, POT/0112

Eco-sustainable printed magnetoresistive sensors — •Lin Guo, Xiaotao Wang, Proloy Taran Das, Yevhen Zabila, Ihor Veremchuk, Rui Xu, and Denys Makarov — Helmholtz-Zentrum Dresden-Rossendorf e.V., 01328 Dresden, Germany

Magnetoresistive sensors (MR), capable of non-contact detection of magnetic fields and consequently relative motion, have been extensively used across a broad spectrum of applications[1].Meanwhile, the massive deployment of magnetoresistive sensor arise the sustainability concerns from two aspects: 1. Carbon footprint in fabrication. 2. Electronics waste issue at the end of their lifetime.

Here, we propose the printed eco-sustainable magnetoresistance sensors. First, the recyclable printed MR sensors is developed based on a polyepichlorohydrin binder[2]. The hazardous MR ([Co/Cu]50) fillers are realized a close loop recycle once after the sensor lifetime. Further, we develop a healable and recyclable printed MR sensor via a full biomaterial gelatin-choline-citric acid ionogel. The additional healable capability extends the service time of the printed MR sensors and the full biomaterial binder decreased the carbon footprint. Finally, we developed a fully green printed magnetoresistance with Fe@Fe3O4 core-shell particles as functional filler, carboxymethyl cellulose as matrix binder, and water as solvents. Given that the skill-fully engineered magnetic structure and spin dependent transport, the printed sensors exhibit the remarkable low field magnetoresistance and sensitivity.

[1]Guo, L. et al., Chin. J. Struct. Chem. 44, 100428 (2025).

[2]Wang, X., Guo L. et al., J. Mater. Chem. A. 12, 24906 (2024).

Keywords: Magnetoresistive sensors; Sustainable electronics; Printed electronics