Journal article

Facile Development of a Fiber-Based Electrode for Highly Selective and Sensitive Detection of Dopamine

Syamak Farajikhah, Peter C Innis, Brett Paull, Gordon G Wallace, Alexander R Harris

ACS Sensors | AMER CHEMICAL SOC | Published : 2019


A facile one-step method was used to create a selective and sensitive electrode for dopamine (DA) detection based upon a stainless steel (SS) filament substrate and reduced graphene oxide (rGO). The electrode successfully and selectively detects DA in the presence of uric acid and ascorbic acid without the need for a Nafion coating. The proposed electrode is easy to fabricate, low-cost, flexible, and strong. The rGO-SS electrode could also be incorporated into a three-dimensional braided structure enabling DA detection in a two-electrode fiber system. The sensor is an excellent candidate for production of an affordable, robust, and flexible wearable and portable sensor and expands the applic..

View full abstract


Awarded by Australian Research Council Centre of Excellence Scheme

Funding Acknowledgements

The authors acknowledge funding support from the Australian Research Council Centre of Excellence Scheme (CE 140100012), Discovery Project (DP170102572), the Australian National Fabrication Facility (ANFF)-Materials Node under the National Collaborative Research Infrastructure Strategy providing nano-and microfabrication facilities for Australia's researchers, the facilities at the University of Wollongong Electron Microscopy Center, and Dr. Patricia Hayes and Mr. Sepehr Talebain for their technical assistance.