Next Article in Journal
Biosensor Applications of MAPLE Deposited Lipase
Previous Article in Journal
Piezoelectric Biosensors for Organophosphate and Carbamate Pesticides: A Review
Article Menu

Export Article

Open AccessCommunication
Biosensors 2014, 4(3), 318-328; doi:10.3390/bios4030318

Microelectrode Arrays and the Use of PEG-Functionalized Diblock Copolymer Coatings

Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA
Author to whom correspondence should be addressed.
Received: 29 July 2014 / Revised: 28 August 2014 / Accepted: 5 September 2014 / Published: 11 September 2014
View Full-Text   |   Download PDF [346 KB, uploaded 11 September 2014]   |  


PEG-modified diblock copolymer surfaces have been examined for their compatibility with microelectrode array based analytical methods. The use of PEG-modified polymer surfaces on the arrays was initially problematic because the redox couples used in the experiments were adsorbed by the polymer. This led the current measured by cyclic voltammetry for the redox couple to be unstable and increase with time. However, two key findings allow the experiments to be successful. First, after multiple cyclic voltammograms the current associated with the redox couple does stabilize so that a good baseline current can be established. Second, the rate at which the current stabilizes is consistent every time a particular coated array is used. Hence, multiple analytical experiments can be conducted on an array coated with a PEG-modified diblock copolymer and the data obtained is comparable as long as the data for each experiment is collected at a consistent time point. View Full-Text
Keywords: microelectrode arrays; PEG; ferrocene carboxylic acid; cyclic voltammetry microelectrode arrays; PEG; ferrocene carboxylic acid; cyclic voltammetry

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Uppal, S.; Graaf, M.D.; Moeller, K.D. Microelectrode Arrays and the Use of PEG-Functionalized Diblock Copolymer Coatings. Biosensors 2014, 4, 318-328.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Biosensors EISSN 2079-6374 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top