Electrochemical characterization of nanogap interdigitated electrode arrays for Lab-on-a-Chip applications
Abstract: In this work we present recent results on electrochemical characterization of the fabricated nanogap interdigitated electrode arrays (nIDAs) for Lab-on-a-Chip applications (LoC). The advantages of the presented nIDAs and their potential for application in bioelectrochemistry were studied using different electrochemical methods. Chronoamperometry is applied to achieve reversible redox processes which lead to an amplification of the measured current compared to a single electrode configuration and as a result, an increase in signal-to-noise ratio. For the electrochemical characterization of the created nIDAs ferrocenemethanol (FcMeOH) and p-aminophenol (pAP) were selected as redox couples. An amplification factor above 160 compared to a single electrode configuration was obtained with FcMeOH for the nIDAs with 100 nm gap. An inverse correlation between gap size and amplification was proven. In addition, the formation of a polymer film during redox cycling could be verified to cause the lower amplification factor observed in pAP measurements. Furthermore, different electrode cleaning procedures were demonstrated by combination of O2 plasma and cyclic voltammetry. The nIDAs presented here offer many advantages including low-cost fabrication, high amplification and collection factors and thus are highly suitable for biosensor applications
- Location
-
Deutsche Nationalbibliothek Frankfurt am Main
- Extent
-
Online-Ressource
- Language
-
Englisch
- Notes
-
Journal of The Electrochemical Society. - 165, 3 (2018) , B127-B134, ISSN: 0013-4651
- Event
-
Veröffentlichung
- (where)
-
Freiburg
- (who)
-
Universität
- (when)
-
2019
- Creator
- Contributor
- DOI
-
10.1149/2.0701803jes
- URN
-
urn:nbn:de:bsz:25-freidok-1423483
- Rights
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
-
15.08.2025, 7:20 AM CEST
Data provider
This object is provided by:
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
Time of origin
- 2019
Other Objects (12)
Fabrication of interdigitated electrode arrays for biosensors by advanced mask aligner lithography
Electrochemical microfluidic multiplexed biosensor platform for point-of-care testing
Electrochemical microsensor system for cell culture monitoring : = Elektrochemisches Mikrosensor-System zum Zellkultur-Monitoring
Electrochemical microsensors for superoxide monitoring in cell culture : = Elektrochemische Mikrosensoren fuer Superoxid-Monitoring in Zellkultur
Utilizing the ability of electrochemical NO sensors: micro sensor designs for hypoxic cell cultures : = Designs für Mikrosensoren für hypoxische Zellkulturen unter Ausnutzung der Leistungsfähigkeit von elektrochemischen NO-Sensoren
Highly sensitive electrochemical glutamate microsensors for food analysis
Lab-on-a-Chip Systeme zur Probenaufbereitung in der patientennahen Labordiagnostik
Microfluidic immunosensor for point-of-care diagnostics : = Microfluidischer Immunosensor für patientennahe Diagnostik
Characterization of the adsorption of biomolecules in open electrowetting on dielectrics microfluidics-tool platform for bio-analytical applications : = Charakterisierung des Adsorptionsverhaltens von Biomolekülen auf Open Electrowetting On Dielectrics Mikrofluidikplattform für Bioanalytische Anwendungen
Development of a medium independent flow measurement technique based on oscillatory thermal excitation : = Entwicklung einer auf oszillatorische und thermische Anregung basierten Technik zur mediumunabhängigen Durchflussmessung
A microfluidic dual chip system for rapid pathogen detection
Studies on neural differentiation and monitoring with novel biosensor tools : = Studien zur neuronalen Differenzierung und Überwachung mit neuartigen Biosensoren
Fabrication of interdigitated electrode arrays for biosensors by advanced mask aligner lithography
Electrochemical microfluidic multiplexed biosensor platform for point-of-care testing
Electrochemical microsensor system for cell culture monitoring : = Elektrochemisches Mikrosensor-System zum Zellkultur-Monitoring
Electrochemical microsensors for superoxide monitoring in cell culture : = Elektrochemische Mikrosensoren fuer Superoxid-Monitoring in Zellkultur
Utilizing the ability of electrochemical NO sensors: micro sensor designs for hypoxic cell cultures : = Designs für Mikrosensoren für hypoxische Zellkulturen unter Ausnutzung der Leistungsfähigkeit von elektrochemischen NO-Sensoren
Highly sensitive electrochemical glutamate microsensors for food analysis
Lab-on-a-Chip Systeme zur Probenaufbereitung in der patientennahen Labordiagnostik
Microfluidic immunosensor for point-of-care diagnostics : = Microfluidischer Immunosensor für patientennahe Diagnostik
Characterization of the adsorption of biomolecules in open electrowetting on dielectrics microfluidics-tool platform for bio-analytical applications : = Charakterisierung des Adsorptionsverhaltens von Biomolekülen auf Open Electrowetting On Dielectrics Mikrofluidikplattform für Bioanalytische Anwendungen
Development of a medium independent flow measurement technique based on oscillatory thermal excitation : = Entwicklung einer auf oszillatorische und thermische Anregung basierten Technik zur mediumunabhängigen Durchflussmessung
A microfluidic dual chip system for rapid pathogen detection
Studies on neural differentiation and monitoring with novel biosensor tools : = Studien zur neuronalen Differenzierung und Überwachung mit neuartigen Biosensoren
Fabrication of interdigitated electrode arrays for biosensors by advanced mask aligner lithography
Electrochemical microfluidic multiplexed biosensor platform for point-of-care testing
Electrochemical microsensor system for cell culture monitoring : = Elektrochemisches Mikrosensor-System zum Zellkultur-Monitoring
Electrochemical microsensors for superoxide monitoring in cell culture : = Elektrochemische Mikrosensoren fuer Superoxid-Monitoring in Zellkultur
Utilizing the ability of electrochemical NO sensors: micro sensor designs for hypoxic cell cultures : = Designs für Mikrosensoren für hypoxische Zellkulturen unter Ausnutzung der Leistungsfähigkeit von elektrochemischen NO-Sensoren
Highly sensitive electrochemical glutamate microsensors for food analysis
Lab-on-a-Chip Systeme zur Probenaufbereitung in der patientennahen Labordiagnostik
Microfluidic immunosensor for point-of-care diagnostics : = Microfluidischer Immunosensor für patientennahe Diagnostik
Characterization of the adsorption of biomolecules in open electrowetting on dielectrics microfluidics-tool platform for bio-analytical applications : = Charakterisierung des Adsorptionsverhaltens von Biomolekülen auf Open Electrowetting On Dielectrics Mikrofluidikplattform für Bioanalytische Anwendungen
Development of a medium independent flow measurement technique based on oscillatory thermal excitation : = Entwicklung einer auf oszillatorische und thermische Anregung basierten Technik zur mediumunabhängigen Durchflussmessung
A microfluidic dual chip system for rapid pathogen detection