Refine
Year of publication
Document Type
- Article (542) (remove)
Keywords
- LAPS (4)
- field-effect sensor (4)
- Label-free detection (3)
- biosensors (3)
- capacitive field-effect sensor (3)
- hydrogen peroxide (3)
- tobacco mosaic virus (TMV) (3)
- Bacillus atrophaeus (2)
- Capacitive field-effect sensor (2)
- Field-effect sensor (2)
- Light-addressable potentiometric sensor (2)
- Raman spectroscopy (2)
- capacitive field-effect sensors (2)
- gold nanoparticles (2)
- light-addressable potentiometric sensor (2)
- penicillinase (2)
- (Bio)degradation (1)
- Bacillus atrophaeus spores (1)
- Bioabsorbable (1)
- CNOT (1)
Institute
Light-addressable potentiometric sensors (LAPS) are field-effect-based sensors. A modulated light source is used to define the particular measurement spot to perform spatially resolved measurements of chemical species and to generate chemical images. In this work, an organic-LED (OLED) display has been chosen as a light source. This allows high measurement resolution and miniaturisation of the system. A new developed driving method for the OLED display optimised for LAPS-based measurements is demonstrated. The new method enables to define modulation frequencies between 1 kHz and 16 kHz and hence, reduces the measurement time of a chemical image by a factor of 40 compared to the traditional addressing of an OLED display.