|Title:||f-MWCNTs-PIN/Ti<inf>2</inf>O<inf>3</inf> nanocomposite: Preparation, characterization and nanomolar detection of Α-Lipoic acid in vegetables||Authors:||Sasikumar, Ragu
Rwei, Syang Peng
Chen, Shen Ming
|Keywords:||ALA sensor | Alzheimer's diseases | f-MWCNT | Polyindole | Ti O 2 3||Issue Date:||1-Jan-2018||Source:||Sensors and Actuators, B: Chemical||Journal Volume:||255||Abstract:||
© 2017 Elsevier B.V. A highly sensitive, and selective α-Lipoic acid (ALA) sensor based on a functionalized multi-walled carbon nanotubes-polyindole/Ti2O3 (f-MWCNTs-PIN/Ti2O3) nanocomposite modified glassy carbon electrode (GCE) was developed. The fabricated f-MWCNTs-PIN/Ti2O3/GCE displayed an enhanced voltammetric response for oxidation towards ALA relative to that of a f-MWCNTs/GCE, f-MWCNTs-PIN/GCE, Ti2O3/GCE, and a bare GCE. Under optimum conditions, the f-MWCNTs-PIN/Ti2O3/GCE showed a wide linear range at ALA concentrations of 0.39–115.8 μM. The limit of detection of 12 nM and sensitivity of about 6.39 μA μM−1cm−2. The developed sensor showed anti-interference, reproducibility, good repeatability, and operational stability. Applied possibility of the sensor has been confirmed in vegetable samples.
|Appears in Collections:||政治學系|
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