Strechable Electronics
Flexible Sensorics
Printable Electronics
Rolled-up Sensors
Magnetic Flow Cytometry
Magnetic Flow Cytometry

Recent Publications

04/2021
M. Ha, G. S. Cañón Bermúdez, J. A.-C. Liu, E. S. Oliveros Mata, B. A. Evans, J. B. Tracy, and D. Makarov
Reconfigurable magnetic origami actuators with on-board sensing for guided assembly
Adv. Mater. (2021). URL PDF
  
04/2021
O. V. Pylypovskyi, Y. A. Borysenko, J. Fassbender, D. D. Sheka, and D. Makarov
Curvature-driven homogeneous Dzyaloshinskii-Moriya interaction and emergent weak ferromagnetism in anisotropic antiferromagnetic spin chains
Appl. Phys. Lett. 118, 182405 (2021). URL 
  
04/2021
J. Mujtaba, J. Liu, K. K. Dey, T. Li, R. Chakraborty, K. Xu, D. Makarov, R. A. Barmin, D. A. Gorin, V. P. Tolstoy, G. Huang, A. A. Solovev, and Y. Mei
Micro-Bio-Chemo-Mechanical-Systems: Micromotors, Microfluidics, and Nanozymes for Biomedical Applications
Adv. Matter. (2021). URL
  
04/2021
O. V. Pylypovskyi, A. V. Tomilo, D. D. Sheka, J. Fassbender, and D. Makarov
Boundary conditions for the Neel order parameter in a chiral antiferromagnetic slab
Phys. Rev. B 103, 134413 (2021). URL
  
03/2021
P. Makushko, E. S. Oliveros Mata, G. S. Cañón Bermúdez, M. Hassan, S. Laureti, C. Rinaldi, F. Fagiani, G. Barucca, N. Schmidt, Y. Zabila, T. Kosub, R. Illing, O. Volkov, I. Vladymyrskyi, J. Fassbender, M. Albrecht, G. Varvaro, and D. Makarov
Flexible Magnetoreceptor with Tunable Intrinsic Logic for On-Skin Touchless Human-Machine Interfaces
Adv. Funct. Mater. (2021).URL PDF
  
03/2021
E. S. Oliveros Mata, G. S. Cañón Bermúdez, M. Ha, T. Kosub, Y, Zabila, J. Fassbender, and D. Makarov
Printable anisotropic magnetoresistance sensors for highly compliant electronics
Applied Physics A 127, 280 (2021). URL PDF
  
03/2021
O. M. Volkov, F. Kronast, C. Abert, E. S. Oliveros Mata, T. Kosub, P. Makushko, D. Erb, O. V. Pylypovskyi, M.-A. Mawass, D. Sheka, S. Zhou, J. Fassbender, and D. Makarov
Domain wall damping in ultrathin nanostripes with Dzyaloshinskii-Moriya interaction
Phys. Rev. Applied 15, 034038 (2021). URL

02/2021
G. S. Cañón Bermúdez and D. Makarov
Magnetosensitive e-skins for interactive devices
Adv. Funct. Mater. (2021). URL PDF

02/2021
P. Muduli, R. Schlitz, T. Kosub, R. Hübner, A. Erbe, D. Makarov, and S. T. B. Goennenwein
Local and nonlocal spin Seebeck effect in lateral Pt-Cr2O3-Pt devices at low temperatures
Appl. Phys. Lett. Materials 9, 021122 (2021). URL PDF

02/2021
N. Hedrich, K. Wagner, O. V. Pylypovskyi, B. J. Shields, T. Kosub, D. D. Sheka, D. Makarov, and P. Maletinsky
Nanoscale mechanics of antiferromagnetic domain walls
Nature Physics (2021). URL

02/2021
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

01/2021
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

11/2020
Y. Liu, G. Lin, Y. Chen, I. Mönch, D. Makarov, B. J. Walsh, and D. Jin
Coding and decoding stray magnetic fields for multiplexing kinetic bioassay platform
Lab Chip 20, 4561 (2020). URL

11/2020
N. Novakovic-Marinkovic, M.-A. Mawass, O. Volkov, P. Makushko, W. D. Engel, D. Makarov, and F. Kronast
From stripes to bubbles: Deterministic transformation of magnetic domain patterns in Co/Pt multilayers induced by laser helicity
Phys. Rev. B 102, 174412 (2020). URL

11/2020
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, 8157-8162 (2020). URL

MORE PUBLICATIONS

There is a trend in electronics towards becoming shapeable (flexible, stretchable or printable), which allows electronic components to be arbitrarily reshaped after fabrication. This unique feature offers new unexplored functionalities for the markets of consumer electronics and eMobility. Shapeable electronics and optoelectronics have been developed already for a few years.

Very recently, we added a new member to this family - the shapeable magnetic sensorics, which pave the way towards the development of a unique class of devices with important functionality being not only shapeable and fast, but also with the ability to react and respond to a magnetic field. Shapeable magnetic sensor devices could enable the fabrication of, e.g. health monitoring systems, where large-angle folding of the micrometer-sized functional elements is a crucial prerequisite for a successful implementation.

In the ERC project SMaRT we aim to develop shapeable magnetoelectronics to the industry-ready product and integrate these magnetic field sensorics into flexible large area multifunctional devices consisting of flexible batteries, communication modules and different types of sensing elements, e.g. environmental, chemical, temperature.

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

12/2020Paper featured as a cover page of Lab on Chip
Our paper on the realization of kinetic bioassay platform based on coding and decoding of stray magnetic fields of superparamagnetic beads is highlighted with a cover page of Lab on Chip.

We report that stray magnetic fields can code and decode a collection of hierarchically-assembled beads. By the microfluidic assembling of mesoscopic superparamagnetic cores, diverse and non-volatile stray magnetic field response can be built in the series of microscopic spheres, dumbbells, pears, chains and triangles. Remarkably, the set of stray magnetic field fingerprints are readily discerned by a compact giant magnetoresistance sensor for parallelised screening of multiple distinctive pathogenic DNAs. This opens up the magneto-multiplexing opportunity and could enable streamlined assays to incorporate magneto-mixing, washing, enrichment and separation of analytes. This strategy therefore suggests a potential point-of-care testing solution for efficient kinetic assays.

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 Minomic International Ltd. (group of Bradley J. Walsh).

Y. Liu, G. Lin, Y. Chen, I. Mönch, D. Makarov, B. J. Walsh, and D. Jin
Coding and decoding stray magnetic fields for multiplexing kinetic bioassay platform
Lab Chip 20, 4561 (2020). URL   


08/2020Paper featured as a cover page of ACS Omega
Our paper on the realization of planar Hall effect sensors for magnetic droplet-based fluidics is highlighted with a cover page of ACS Omega.

Droplet-based magnetofluidics emerged as a novel analytic tool encompassing integrated novel functionalities, e.g. analytics in a flow cytometry format, magnetic barcoding and sorting of magnetically encoded emulsion droplets. For these applications, high-performance magnetic field sensors have to be integrated in microfluidic geometries to enable real-time tracking of low concentrations of magnetic species in droplets as they flow by the sensor. To boost the limit of detection of droplet-based magnetofluidics, novel sensor solutions are needed. Here, we realize a droplet-based magnetofluidic platform based on planar Hall effect (PHE) sensors. We applied this platform for the detection and analysis of nanoliter-sized superparamagnetic droplets encapsulating a ferrofluid composed of 10 nm Fe3O4 nanoparticles at concentrations ranging from 0.04 to 5 mg/cm³. These concentrations are chosen due to their relevance for biological and medical applications like cancer thermotherapy and Magnetic Resonance Imaging (MRI). Our detection platform with geomagnetic field biasing (50 µT) outperforms by 10 times the state-of-the-art devices in droplet-based magnetofluidics with integrated GMR sensors yet biased to 1 mT fields. The detection limit of our platform can be pushed down to 0.04 mg/cm³ when biased with an external magnetic field of 5 mT, which constitutes 2 orders of magnitude enhancement over the state-of-the-art in droplet-based magnetofluidics. These results open the route for new strategies of the utilization of ferrofluids in microfluidic geometries in e.g. bio(-chemical) or medical applications.

This work is a result of a fruitful cooperation between the Helmholtz-Zentrum Dresden-Rossendorf e.V., Bar-Ilan University (group of Prof. Lior Klein), Ben-Gurion University of the Negev (group of Dr. Asaf Grosz) and Instituto Nacional de Technologia Industrial (group of Pablo N. Granell).

J. Schütt, R. Illing, O. Volkov, T. Kosub, P. N. Granell, H. Nhalil, J. Fassbender, L. Klein, A. Grosz, and D. Makarov
Two orders of magnitude boost in the detection limit of droplet-based micro-magnetofluidics with planar Hall Effect sensors
ACS Omega 5, 20609 (2020). URL PDF   


06/2020Paper featured on a frontispiece of Advanced Materials Technologies
Our paper on the realization of multifunctional hydrogel-based Janus particles is highlighted with a frontispiece page of Advanced Materials Technologies.

We introduced a novel strategy to fabricate Janus micromotors through a microfluidic method by adhering functional nanoparticles (NPs) onto microspheres functionalized with a photocurable hydrogel precursor. The proposed approach allows us to fabricate Janus particles with tunable coverage of a hydrogel sphere with functional NPs (including photocatalytic TiO2, magnetic Fe3O4 and catalytic MnO2), hence enabling a straightforward tailoring of physical and chemical responses of the capped spheres under external stimuli (UV light illumination, concentration of H2O2 and magnetic field). The method can be readily extended to prepare multifunctional Janus micromotors by using various kinds of functional NPs (e.g., catalytic MnO2 and magnetic Fe3O4) during the fabrication. In addition to the detailed study of the fundamentals of the complex motion dynamics of Janus spheres, we revealed the potential of our TiO2 Janus microspheres for performing useful tasks in environmental applications with the focus on water purification.

This work is a result of a fruitful cooperation between the HZDR and the group of Prof. Yongfeng Mei at the Fudan University in Shanghai, China.

X. Lin, H. Zhu, Z. Zhao, C. You, Y. Kong, Y. Zhao, J. Liu, H. Chen, X. Shi, D. Makarov, and Y. F. Mei
Hydrogel-based Janus Micromotors Capped with Functional Nanoparticles for Environmental Applications
Adv. Mater. Technol. 5, 2000279 (2020). URL PDF   


04/2020Denys Makarov is a Fellow of the Young Academy of Europe
Denys Makarov is admitted as a member of the Young Academy of Europe (YAE). The YAE is a pan-European charity organisation of young scholars with outspoken views about academia as well as humanities and science policy. The YAE prospers from the involvement of excellent scholars to advance on issues that are relevant to the European landscape. Further details on the YAE can be found here: URL

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