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Ultrasensitive and Selective Organic FET-type Nonenzymatic Dopamine Sensor Based on Platinum Nanoparticles-Decorated Reduced Graphene Oxide by Jungkyun Oh; Jun Seop Lee; Jaemoon Jun; Sung Gun Kim; Jyongsik Jang is a Engineering article available to read on EtoBox.
What is Ultrasensitive and Selective Organic FET-type Nonenzymatic Dopamine Sensor Based on Platinum Nanoparticles-Decorated Reduced Graphene Oxide about?
Dopamine (DA), a catecholamine hormone, is an important neurotransmitter that controls renal and cardiovascular organizations and regulates physiological activities. Abnormal concentrations of DA cause unfavorable neuronal illnesses such as Parkinson's disease, schizophrenia, and attention deficit hyperactivity disorder/attention deficit disorder. However, the DA concentration is exceedingly low in patients and difficult to detect with existing biosensors. In this study, we developed an organic field-effect-transistor-type (OFET) nonenzyme biosensor using platinum nanoparticle-decorated reduced graphene oxide (Pt\_rGO) for ultrasensitive and selective DA detection. The Pt\_rGOs were fabricated by reducing GO aqueous solution-containing Pt precursors (PtCl) with a chemical reducing agent. The Pt\_rGOs were immobilized on a graphene substrate by π-π interactions and a conducting-polymer source-drain electrode was patterned on the substrate to form the DA sensor. The resulting OFET sensor showed a high sensitivity to remarkably low DA concentrations (100 × 10 M) and selectivity among interfering molecules. Good stability was expected for the OFET sensor because it was fabricated witho
Who reads Ultrasensitive and Selective Organic FET-type Nonenzymatic Dopamine Sensor Based on Platinum Nanoparticles-Decorated Reduced Graphene Oxide?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Jungkyun Oh; Jun Seop Lee; Jaemoon Jun; Sung Gun Kim; Jyongsik Jang
- Publisher
- American Chemical Society (ACS)
- Published
- 2017
- Language
- EN
- Field
- Engineering (Physical Sciences)