Inkjet-printed graphene-PEDOT:PSS modified screen printed carbon electrode for biochemical sensing
Top Cited Papers
- 8 February 2012
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 22 (12), 5478-5485
- https://doi.org/10.1039/c2jm14005e
Abstract
In this work, a novel method for electrode modification based on inkjet-printing of electrochemically synthesized graphene-PEDOT:PSS (GP-PEDOT:PSS) nanocomposite is reported for the first time. GP-PEDOT:PSS dispersed solution is prepared for use as an ink by one-step electrolytic exfoliation from a graphite electrode. GP-PEDOT:PSS layers are then printed on screen printed carbon electrodes (SPCEs) by a commercial inkjet material printer (Dimatrix Inc.) and their electrochemical behaviors towards three common electroactive analytes, including hydrogen peroxide (H2O2), nicotinamide adenine dinucleotide (NAD+/NADH) and ferri/ferro cyanide (Fe(CN)6 3 −/4−) redox couples, are characterized. It is found that the oxidation signals for H2O2, NADH and K2Fe(CN)6 of PEDOT:PSS modified and GP-PEDOT:PSS modified SPCEs are ∼2–4 and ∼3–13 times higher than those of unmodified SPCE, respectively. In addition, excellent analytical features with relatively wide dynamic ranges, high sensitivities and low detection limits have been achieved. Therefore, the inkjet-printed GP-PEDOT:PSS electrode is a promising candidate for advanced electrochemical sensing applications.Keywords
This publication has 30 references indexed in Scilit:
- Bio-electrocatalysis of NADH and ethanol based on graphene sheets modified electrodesTalanta, 2011
- Graphene for electrochemical sensing and biosensingTrAC Trends in Analytical Chemistry, 2010
- Screen-printed poly(3,4-ethylenedioxythiophene) (PEDOT): A new electrochemical mediator for acetylcholinesterase-based biosensorsTalanta, 2010
- Development of a Glucose Biosensor Using Advanced Electrode Modified by Nanohybrid Composing Chemically Modified Graphene and Ionic LiquidElectroanalysis, 2010
- Graphene Based Electrochemical Sensors and Biosensors: A ReviewElectroanalysis, 2010
- Preparation, Structure, and Electrochemical Properties of Reduced Graphene Sheet FilmsAdvanced Functional Materials, 2009
- Electrochemical Sensing and Biosensing Platform Based on Chemically Reduced Graphene OxideAnalytical Chemistry, 2009
- Probing the Electrochemical Properties of Graphene Nanosheets for Biosensing ApplicationsThe Journal of Physical Chemistry C, 2009
- Functionalized carbon nanotubes and nanofibers for biosensing applicationsTrAC Trends in Analytical Chemistry, 2008
- Graphene Transistors Fabricated via Transfer-Printing In Device Active-Areas on Large WaferNano Letters, 2007