A5060520096- Membrane Separation Technologies
- Membrane-based Ion Separation Techniques
- Innovative Microfluidic and Catalytic Techniques Innovation
- Electrohydrodynamics and Fluid Dynamics
- Membrane Separation and Gas Transport
- Conducting polymers and applications
- Microfluidic and Bio-sensing Technologies
- Electrocatalysts for Energy Conversion
- Supercapacitor Materials and Fabrication
- Advanced Sensor and Energy Harvesting Materials
- Pickering emulsions and particle stabilization
- Nanofabrication and Lithography Techniques
- Microfluidic and Capillary Electrophoresis Applications
- Acute Kidney Injury Research
- Surface Modification and Superhydrophobicity
- Additive Manufacturing and 3D Printing Technologies
- Inhalation and Respiratory Drug Delivery
- Electrowetting and Microfluidic Technologies
- Catalysis for Biomass Conversion
- Micro and Nano Robotics
- Advanced battery technologies research
- Advanced Materials and Mechanics
- Granular flow and fluidized beds
- Advanced Memory and Neural Computing
- Biochemical and biochemical processes
RWTH Aachen University
2015-2021
DWI – Leibniz Institute for Interactive Materials
2015-2021
In-chip fabrication<italic>via</italic>two-photon polymerization of embedded pressure resistant and fluid tight systems.
Abstract Today's electrochemical reactor design is a less developed discipline as compared to electrocatalytic synthesis. Although catalysts show increasing conversion rates, they are often operated without measures for the reduction of concentration polarization effects. As result, stagnant boundary layer forms at electrode‐electrolyte interface. This presents an additional voltage drop and reduces energy efficiency. It generally accepted that this phenomenon caused by combination fast...
Two-photon vertical-flow lithography is demonstrated for synthesis of complex-shaped polymeric microtubes with a high aspect ratio (>100:1). This unique microfluidic approach provides rigorous control over the morphology and surface topology to generate thin-walled (<1 µm) tunable diameter (1-400 pore size (1-20 µm). The interplay between fluid-flow two-photon presents generic high-resolution method that will substantially contribute toward future development biocompatible scaffolds, stents,...
Abstract Electrode mixers are ordered 3D flow‐through structures with mixing properties that at the same time act as electrode. Because of their properties, these enhance mass transfer electrode surface, increasing limiting‐current plateau. Typically operating this plateau, productivity electrochemical reactors is limited by transport reagents. This work presents fabrication all‐metal through an indirect printing method. Whereas other techniques suffer from design limitations or come high...
Extracorporeal lung assist technology is one of the last options in critical care medicine to treat patients suffering from severe oxygenation and decarboxylation disorders. Platelet activation along with consequent thrombus formation a potentially life-threatening complication this technique. To avoid platelet-dependent clot formation, study aims at developing microfluidic cell sorting chip that can bypass platelets prior membrane oxygenator extracorporeal device. The chips were produced by...
Double emulsions are useful geometries as templates for core-shell particles, hollow sphere capsules, and the production of biomedical delivery vehicles. In microfluidics, two approaches currently being pursued preparation microfluidic double emulsion devices. The first approach utilizes soft lithography, where many identical double-flow-focusing channel produced in a hydrophobic silicone matrix. This technique requires selective surface modification respective sections to facilitate...
Abstract Filter cake formation is the predominant phenomenon limiting filtration performance of membrane separation processes. However, filter cake’s behavior at particle scale, which determines its overall behavior, has only recently come into focus scientists, leaving open questions about and behavior. The present study contributes to fundamental understanding soft cakes by analyzing influence porous membrane’s morphology on crystal compaction under conditions. Microfluidic chips with...
Abstract The electrochemical synthesis of hydrogen peroxide (H 2 O ) using the oxygen reduction reaction (ORR) requires highly catalytic active, selective, and stable electrode materials to realize a green efficient process. present publication shows for first time application facile one‐step bottom‐up wet‐spinning approach continuous fabrication flexible tubular poly(3,4‐ethylene dioxythiophene) (PEDOT : PSS) PEDOT PSS/carbon nanotube (CNT) hollow fibers. Additionally, experiments reveal...
Due to improved technology and increased application the mortality during extracorporeal membrane oxygenation (ECMO) is constantly declining. Nevertheless, complications including haemorrhage or thrombus formation remain frequent. Local mitigation of coagulation within an ECMO system prevent on components optimizing systemic anticoagulation approach reduce clotting bleeding at once. Foreign surfaces systems, activate platelets (PLTs), which besides their major role in coagulation, can...
Over the last decade, use of nanotechnology in electrochemical catalysis has become extreme popular [1]. Sole electrocatalytic nanoparticles, however, do not yet constitute an electrode. Hence, deposition on a conducting support structure is indispensable. While activity general well understood using typical techniques such as cyclic and linear voltammetry whether or coupled with controlled mass transfer conditions like rotating disk electrodes, impact concentration polarization often...