Projects 1st period
Description of the dissertation projects in the 1st PERIOD
In the first phase the following dissertation projects were worked on:
No. |
Project name |
Supervisor |
Co-supervisor |
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A |
Materials and processes |
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A1 |
Synthesis and structuring of mechanically stable and sensitive hydrogels for the development of application fields |
Arndt (Ferse) |
Wallmersperger/ Odenbach |
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Nanocomposite gels (polymers/nanoclay) are synthesized via a photochemically initiated polymerization of responsive monomers and simultaneously structured down to the µm range. |
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A2 |
Electrical and magnetic functionalization of active polymers |
Arndt (Ferse) |
Odenbach/Gerlach |
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By functionalizing and applying suitable transducers (Hall, GMR), an electrical signal describing the properties of an active polymer is generated in real time. |
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A3 |
Porous hydrogels for sensory applications |
Gerlach |
Voit (Zschoche)/Arndt |
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The response time of the hydrogel swelling/shrinkage is to be shortened by porous hydrogels. For this purpose, corresponding porous hydrogels with finely cross-linked structures of different pore diameters, but narrow pore distribution, are to be produced and investigated with regard to the sensor response times. |
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A4 |
Phase transitions in gel systems and their dependence on mechanical loads |
Odenbach |
Arndt (Ferse)/Richter |
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Influences on the gel transition and its effects on the structure and properties of the formed gel system are investigated using the example of cross-linking under the influence of mechanical forces. |
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A5 |
Rheological and microstructural investigations on mixture-induced thermosensitive nanocomposite hydrogels. |
Odenbach |
Arndt (Ferse) |
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Complete development of the manufacturing process of mechanically stable, highly swellable, thermosensitive PNIPAAm-Laponite mixing gels for the development of various fields of application in sensor technology and microfluidics. |
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A6 |
Structure of enzymatic reaction cascades on hydrogel surfaces in microfluidic processes |
Voit (Appelhans) |
Richter/Günther |
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Non-covalent and bioconjugated fixation of enzymes to and in hydrogel surfaces will be used to establish enzymatic reaction cascades in microfluidic processes. |
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A7 |
Complex bisensitive hydrogel systems |
Voit (Zschoche) |
Richter/Wallmersperger |
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Realization of bisensitive hydrogels for microsystems with high sensitivity, selectivity and stability by the design of structure and morphology of the polymer segments. |
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A8 |
Modelling of hydrogel layer systems |
Wallmersperger |
Voit (Zschoche)/Richter |
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Sensitive two- and multi-layer component hydrogels are investigated and modelled and numerically simulated with respect to the coupled chemo-mechanical behavior depending on different stimulation. | |||||
B |
Microsystems |
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B1 |
Biochemical Sensor |
Günther |
Voit (Appelhans)/Arndt (Ferse) |
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Development of a biochemical sensor with biocompatible hermetic encapsulation for inline process monitoring and for the detection of specific analyte molecules, based on hydrogels with high detection sensitivity. |
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B2 |
Implantable miniaturized sensor system for biomedical diagnostics |
Günther |
Gerlach/Arndt |
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Realisation of a robust, miniaturised sensor system with a long service life for the simultaneous acquisition of several parameters for use in medical diagnostics. |
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B3 |
Powerless sensor switches |
Gerlach |
Wallmersperger/Arndt |
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Hydrogels are to be used as material for the switching element in powerless sensor switches, which are of particular interest for energy self-sufficient systems. The switching hysteresis and the switching kinetics of the hydrogel are of particular importance. |
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B4 |
Modelling and simulation of a force compensated piezoresistive chemosensor on hydrogel basis |
Wallmersperger |
Gerlach/Günther |
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By means of a coupled chemo-electro-mechanical multi-field formulation based on finite elements it shall be investigated how fast and exactly a sensor with applied counterforce responds in a defined swollen state. |
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B5 |
Chemical Transistors |
Richter |
Voit (Zschoche)/Wallmersperger |
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The aim of the investigations is to gain a theoretical and practical understanding of the nature of these novel building elements and to gain insights into possible design principles. |
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B6 |
Controllable microfluidic synthesis processors |
Richter |
Voit (Appelhans) |
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In this project, the functionality of highly integrated synthesis processors for heterophase fluidics on the basis of stimulus-sensitive hydrogels with a focus on components and system architecture will be investigated. |