Refine
Year of publication
Document Type
- Article (64)
- Conference Proceeding (7)
Keywords
- biosensors (3)
- acetoin (2)
- capacitive field-effect sensor (2)
- tobacco mosaic virus (TMV) (2)
- Bacillus atrophaeus (1)
- Capacitive field-effect sensor (1)
- DNA hybridization (1)
- LAPS (1)
- Label-free detection (1)
- Plant virus (1)
- TMV adsorption (1)
- Ta₂O₅ gate (1)
- Tobacco mosaic virus (1)
- Tobacco mosaic virus (TMV) (1)
- Zeta potential (1)
- acetoin reductase (1)
- actuator-sensor system (1)
- alcoholic beverages (1)
- bi-enzyme biosensor (1)
- biocompatible materials (1)
Gas sensor investigation based on a catalytically activated thin-film thermopile for H2O2 detection
(2010)
Simultaneous detection of cyanide and heavy metals for environmental analysis by means of µISEs
(2010)
Characterisation of polymeric materials as passivation layer for calorimetric H2O2 gas sensors
(2012)
Optimization of the immobilization of bacterial spores on glass substrates with organosilanes
(2016)
Spores can be immobilized on biosensors to function as sensitive recognition elements. However, the immobilization can affect the sensitivity and reproducibility of the sensor signal. In this work, three different immobilization strategies with organosilanes were optimized and characterized to immobilize Bacillus atrophaeus spores on glass substrates. Five different silanization parameters were investigated: nature of the solvent, concentration of the silane, silanization time, curing process, and silanization temperature. The resulting silane layers were resistant to a buffer solution (e.g., Ringer solution) with a polysorbate (e.g., Tween®80) and sonication.
An amperometric biosensor using a substrate recycling principle was realized for the detection of low adrenaline concentrations (1 nM) by measurements in phosphate buffer and Ringer’s solution at pH 6.5 and pH 7.4, respectively. In proof-of-concept experiments, a Boolean logic-gate principle has been applied to develop a digital adrenaline biosensor based on an enzyme AND logic gate. The obtained results demonstrate that the developed digital biosensor is capable for a rapid qualitative determination of the presence/absence of adrenaline in a YES/NO statement. Such digital biosensor could be used in clinical diagnostics for the control of a correct insertion of a catheter in the adrenal veins during adrenal venous-sampling procedure.
