A5067936194- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Chemical Synthesis and Analysis
- Photonic Crystals and Applications
- Plasmonic and Surface Plasmon Research
- Advanced Wireless Communication Technologies
- Click Chemistry and Applications
- Photonic and Optical Devices
- Immune cells in cancer
- Antenna Design and Analysis
- Biochemical and Structural Characterization
- Peptidase Inhibition and Analysis
- Plant Parasitism and Resistance
- Plant Molecular Biology Research
- Plant-Microbe Interactions and Immunity
- Plant nutrient uptake and metabolism
- Nanoplatforms for cancer theranostics
- Neuropeptides and Animal Physiology
- Metalloenzymes and iron-sulfur proteins
- Satellite Communication Systems
- Radio Wave Propagation Studies
- Advanced Proteomics Techniques and Applications
- Polymer Surface Interaction Studies
- Plant Stress Responses and Tolerance
- Optical Wireless Communication Technologies
Martin Luther University Halle-Wittenberg
2013-2024
Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau
2023-2024
University of Kaiserslautern
2022-2023
University of Koblenz and Landau
2023
Max Planck Institute for Multidisciplinary Sciences
2022
Leibniz Institute of Plant Biochemistry
2021
In Nicotiana benthamiana, the expression of Xanthomonas effector XANTHOMONAS OUTER PROTEIN Q (XopQ) triggers RECOGNITION OF XOPQ1 (ROQ1)-dependent effector-triggered immunity (ETI) responses accompanied by accumulation plastids around nucleus and formation stromules. Both plastid clustering stromules were proposed to contribute ETI-related hypersensitive cell death thereby plant immunity. Whether these reactions are directly connected ETI signaling events has not been tested. Here, we...
While autoregulative adaptation is a common feature of living tissues, only few feedback-controlled adaptive biomaterials are available so far. This paper herein reports new polymer hydrogel platform designed to release anti-inflammatory molecules in response the inflammatory activation human blood. In this system, peptide drugs, targeting either complement cascade, receptor, or cyclophilin A, conjugated by sequence that cleaved elastase released from activated granulocytes. As proof...
Varactor diodes have been proposed as active tuning elements of reconfigurable metasurfaces in the Ka-band. However, their experimental realization this frequency range has not demonstrated yet. We report implementation such a intelligent surface (RIS) made 20×20 unit cells. By bias voltage varactors, phase backward diffracted wave can be continuously tuned between 0° and 180°. Thus, independently controlled for each cell. The working RIS is 1.1 GHz (from 30.6 to 31.7 GHz). As an...
Abstract Reconfigurable intelligent surfaces (RIS) have been proposed to extend the coverage of wireless communication signals at mm-wave frequencies. Here, we designed and fabricated a reconfigurable surface for multi-user frequency selective beam steering (MU-FSBS) that achieves higher channel capacity than traditional time division multiple access (TDMA) techniques in scenarios. MU-FSBS is enabled by varactor diode-tuned RIS allows steer several beams Ka-band independently same time. For...
SUMMARY Hydathodes are small organs found on the leaf margins of vascular plants which release excess xylem sap through a process called guttation. While previous studies have hinted at additional functions hydathode in metabolite transport or auxin metabolism, experimental support is limited. We conducted comprehensive transcriptomic, metabolomic and physiological analyses mature Arabidopsis hydathodes. This study identified 1460 genes differentially expressed hydathodes compared to blades,...
Abstract What are the key drivers of (Industrial) Internet Things ((I)IoT)? Alongside interconnection various devices, sensors, and actuators, it is above all data collected transmitted that particular significance, (I)IoT itself source recipient types data. Within this, there two main aspects need to be considered: (i) transmission with appropriate latency reliability requirements, (ii) safeguarding this Both requirements taken into account during development Sixth Generation (6G) Wireless...
Abstract Hydathodes are small organs located on the leaf margins of all vascular plants. They release excess xylem sap through guttation when stomata closed or humidity level is high. Many promoter analyses have suggested other hydathode functions in metabolite transport and auxin metabolism, but experimental demonstration still lacking. Here, we compared transcriptomic metabolomic features mature Arabidopsis hydathodes to blade. 1460 differentially-expressed genes were identified revealing...
The conceptual design of the Sixth Generation (6G) wireless systems include, among others, Reconfigurable Intelligent Surfaces (RISs), arrays elements that are capable manipulating and reconfiguring propagation environment. Thereby, they claimed to have advantages in different subjects, such as coverage, energy efficiency localization. Therefore, this work discusses five use-cases how RISs could contribute Physical Layer Security (PhySec) concepts. By actively influencing scattering,...
Although proteases are capable of synthesizing peptide bonds via the reverse proteolysis, they not proficient at fragment ligation. Further manipulations needed to shift native enzyme activity from cleavage synthesis peptides especially when longer or even proteins target molecules reaction. This account reports on synthetic potential trypsin variants with engineered oxyanion holes mutated by proline mutations, which were designed minimize proteolytic side reactions during bond synthesis....
Abstract In Nicotiana benthamiana , expression of the Xanthomonas effector XopQ triggers ROQ1-dependent ETI responses and in parallel accumulation plastids around nucleus formation stromules. Both processes were proposed to contribute ETI-related hypersensitive cell death thereby plant immunity. Whether these reactions are directly connected signaling events has not been tested. Here we utilized transient experiments determine whether XopQ-mediated plastid a result perception by ROQ1 or...
Inflammation-Controlled Anti-Inflammatory Hydrogels In article number 2206412, Carsten Werner, Manfred F. Maitz, and co-workers designed an enzymatically cleavable polymer hydrogel platform for the release of anti-inflammatory molecules in response to inflammation status human blood. Inflammation suppression reduces trigger enzyme elastase from activated granulocytes down-regulates cleavage.
We present a reconfigurable metasurface for continuous asymmetric beam steering based on patch antenna unit cell. A switching element in the cell allows phase shifting of reflected wave between 0° and 180°. This adjustment enables far-field shapes with global maximum at any desired deflection angle up to 65°. experimentally implement such RIS module demonstrate normally incident beam.
We report an electromechanically tunable metasurface for active manipulation of spoof surface plasmon polaritons (SSPPs). designed a dynamic SSPP low pass filter that can be actively controlled by application electric bias field.
We use particle swarm algorithms to devise subwavelength waveguide array structures that serve, for example, as transmissive walls (transmittance > 88%) microwaves with incidence angles between -80 and +80 deg or spatial filters refract smaller than +/-20 at a refraction angle of 0 in the forward direction. Furthermore, we optimized radar cross section reducing (RCSR) metasurfaces by stimulated annealing applied machine learning implement an RIS, whose backward deflection normally incident...