Highlights in 2021

03/2021Paper featured with a frontispiece of Advanced Materials
Highly compliant electronics, naturally conforming to human skin, represent a paradigm shift in the interplay with our surroundings. Solution-processable printing technologies are yet to be developed to comply with extreme requirements to mechanical conformability of on-skin appliances. Here, we demonstrate the first highly-compliant, printable and stretchable giant magnetoresistive (GMR) sensors capable of detection in low magnetic field and sustaining high-performance magneto-resistive sensing under extreme mechanical deformation of up to 16 µm of bending radii and 100% of stretching state. These printable giant magnetoresistive sensors exhibit 2 orders of magnitude boost in sensitivity to small magnetic field (0.88 mT) with excellent mechanical compliance in comparison with state-of-the-art printable magnetic field sensors. We feature the potential of our highly-compliant and printable magnetoresistive sensors in augmented reality settings, where a sensor-functionalized finger conducts remote and touchless control of virtual objects manageable for scrolling electronic documents and zooming maps under tiny permanent magnet.

M. Ha, G. S. Cañón Bermúdez, T. Kosub, I. Mönch, Y. Zabila, E. S. Oliveros Mata, R. Illing, Y. Wang, J. Fassbender, and D. Makarov
Printable and Stretchable Giant Magnetoresistive Sensors for Highly Compliant and Skin-Conformal Electronics
Adv. Mater. 33, 2005521 (2021). URL PDF

01/2021Best poster prize for Dr. Oleksandr Pylypovskyi
Dr. Oleksandr Pylypovskyi was awarded the best poster prize at the 736. WE-Heraeus-Seminar "Magnetism at the Nanoscale: Imaging - Fabrication - Physics”, which was held online in Bad Honnef, Germany for his work “Geometrically driven chiral effects in curvilinear antiferromagnetic spin chains”. Our warmest congratulations to Oleksandr!

The original work is published here:

O. V. Pylypovskyi, D. Y. Kononenko, K. V. Yershov, U. K. Rößler, A. V. Tomilo, J. Fassbender, J. van den Brink, D. Makarov, and D. D. Sheka
Curvilinear One-Dimensional Antiferromagnets
Nano Letters 20, 8157 (2020). URL

01/2021Paper featured as a cover page of Advanced Intelligent Systems
Actuation-assisted bioanalysis represents an emerging application of micromachines, including microactuators, motors, and microrobotic devices. Here, micromachines consisting of tailorable microcompartments are synthesized by microfluidics-directed assembly. Apart from the control over the geometric parameters of the compartments, a novel emulsion fission approach is devised to precisely allocate the magnetic content in between the compartments of the dimer structures. This unlocks a couple of new degrees of freedom to engineer magnetic coupling in discrete magnetic structure assemblies and uncovers a series of multifunctional microactuators for complex and dynamic bioanalysis.

This work is a result of a fruitful cooperation between the Helmholtz-Zentrum Dresden-Rossendorf e.V., The University of Technology Sydney (group of Dr. Gungun Lin and Prof. Dayong Jin) and State Key Laboratory of Rare Earth Resource Utilization of the Chinese Academy of Sciences (group of Prof. Jun Lin).

G. Lin, Y. Liu, G. Huang, Y. Chen, D. Makarov, J. Lin, Z. Quan, and D. Jin
3D Rotation-Trackable and Differentiable Micromachines with Dimer-Type Structures for Dynamic Bioanalysis
Advanced Intelligent Systems 3, 2000205 (2021). URL PDF