Refine
Year of publication
- 2015 (176) (remove)
Institute
- Fachbereich Medizintechnik und Technomathematik (61)
- INB - Institut für Nano- und Biotechnologien (35)
- IfB - Institut für Bioengineering (32)
- Fachbereich Elektrotechnik und Informationstechnik (28)
- Fachbereich Luft- und Raumfahrttechnik (24)
- Fachbereich Chemie und Biotechnologie (22)
- Fachbereich Maschinenbau und Mechatronik (16)
- Fachbereich Energietechnik (12)
- Fachbereich Bauingenieurwesen (10)
- MASKOR Institut für Mobile Autonome Systeme und Kognitive Robotik (10)
Language
- English (176) (remove)
Document Type
- Article (83)
- Conference Proceeding (71)
- Part of a Book (17)
- Doctoral Thesis (3)
- Patent (1)
- Report (1)
Keywords
- Attitude dynamics (1)
- Booster Station (1)
- Carsharing (1)
- Charging stations (1)
- Discrete Optimisation (1)
- Discrete Optimization (1)
- E-carsharing (1)
- E-mobility (1)
- Efficiency (1)
- Electrical vehicle (1)
Capacitive field-effect electrolyte-insulator-semiconductor sensors consisting of an Al-p-Si-SiO2 structure have been used for the electrical detection of unlabelled single- and double-stranded DNA (dsDNA) molecules by their intrinsic charge. A simple functionalization protocol based on the layer-by-layer (LbL) technique was used to prepare a weak polyelectrolyte/probe-DNA bilayer, followed by the hybridization with complementary target DNA molecules. Due to the flat orientation of the LbL-adsorbed DNA molecules, a high sensor signal has been achieved. In addition, direct label-free detection of in-solution hybridized dsDNA molecules has been studied.
The chemical imaging sensor is a field-effect sensor which is able to visualize both the distribution of ions (in LAPS mode) and the distribution of impedance (in SPIM mode) inthe sample. In this study, a novel wound-healing assay is proposed, in which the chemical imaging sensor operated in SPIM mode is applied to monitor the defect of a cell layer brought into proximity of the sensing surface.A reduced impedance inside the defect, which was artificially formed ina cell layer, was successfully visualized in a photocurrent image.
A sensor system for investigating (bio)degradationprocesses of polymers is presented. The system utilizes semiconductor field-effect sensors and is capable of monitoring the degradation process in-situ and in real-time. The degradation of the polymer poly(d,l-lactic acid) is exemplarily monitored in solutions with different pH value, pH-buffer solution containing the model enzyme lipase from Rhizomucormiehei and cell-culture medium containing supernatants from stimulated and non-stimulated THP-1-derived macrophages mimicking activation of the immune system.