Refine
Year of publication
- 2021 (145) (remove)
Document Type
- Article (80)
- Conference Proceeding (46)
- Part of a Book (12)
- Book (2)
- Doctoral Thesis (2)
- Other (1)
- Preprint (1)
- Working Paper (1)
Language
- English (145) (remove)
Keywords
- Hydrogen (2)
- NOx emissions (2)
- Out-of-plane load (2)
- Principal component analysis (2)
- autonomous driving (2)
- building information modelling (2)
- capacitive field-effect sensor (2)
- constructive alignment (2)
- earthquakes (2)
- electro mobility (2)
- examination (2)
- harmonic radar (2)
- hydrogen (2)
- industrial facilities (2)
- installations (2)
- long-term retention (2)
- multimodal (2)
- piping (2)
- practical learning (2)
- robotic process automation (2)
Institute
- Fachbereich Medizintechnik und Technomathematik (52)
- IfB - Institut für Bioengineering (35)
- Fachbereich Elektrotechnik und Informationstechnik (24)
- Fachbereich Luft- und Raumfahrttechnik (19)
- Fachbereich Energietechnik (17)
- INB - Institut für Nano- und Biotechnologien (15)
- Fachbereich Chemie und Biotechnologie (11)
- Solar-Institut Jülich (10)
- Fachbereich Bauingenieurwesen (9)
- ECSM European Center for Sustainable Mobility (7)
- MASKOR Institut für Mobile Autonome Systeme und Kognitive Robotik (7)
- Fachbereich Maschinenbau und Mechatronik (4)
- Fachbereich Wirtschaftswissenschaften (3)
- IMP - Institut für Mikrowellen- und Plasmatechnik (2)
- Nowum-Energy (2)
- ZHQ - Bereich Hochschuldidaktik und Evaluation (2)
- Arbeitsstelle fuer Hochschuldidaktik und Studienberatung (1)
- Digitalisierung in Studium & Lehre (1)
- Freshman Institute (1)
- IBB - Institut für Baustoffe und Baukonstruktionen (1)
A new functionalization method to modify capacitive electrolyte–insulator–semiconductor (EIS) structures with nanofilms is presented. Layers of polyallylamine hydrochloride (PAH) and graphene oxide (GO) with the compound polyaniline:poly(2-acrylamido-2-methyl-1-propanesulfonic acid) (PANI:PAAMPSA) are deposited onto a p-Si/SiO2 chip using the layer-by-layer technique (LbL). Two different enzymes (urease and penicillinase) are separately immobilized on top of a five-bilayer stack of the PAH:GO/PANI:PAAMPSA-modified EIS chip, forming a biosensor for detection of urea and penicillin, respectively. Electrochemical characterization is performed by constant capacitance (ConCap) measurements, and the film morphology is characterized by atomic force microscopy (AFM) and scanning electron microscopy (SEM). An increase in the average sensitivity of the modified biosensors (EIS–nanofilm–enzyme) of around 15% is found in relation to sensors, only carrying the enzyme but without the nanofilm (EIS–enzyme). In this sense, the nanofilm acts as a stable bioreceptor onto the EIS chip improving the output signal in terms of sensitivity and stability.