Author(s)

Samuel Rhodes¹, Xiaochen Wang¹, Wenlang Liang¹, Hyoung Jin Cho², Jiyu Fang^1*

¹Department of Materials Science and Engineering, University of Central Florida, Orlando, USA.
²Department of Mechanical and Aerospace Engineering, University of Central Florida, Orlando, USA.

J-aggregates of dye molecules are a unique supramolecular structure, which shows great promise in photoelectric devices due to its remarkable optical and transport properties. In this paper, we report the templated formation of J-aggregate nanotubes by the adsorption of 3,3’-diethylthiacarbocyanine iodide on the self-assembled nanotubes of lithocholic acid. The optical and electronic properties of the templated J-aggregate nanotubes are studied. A sensor platform is fabricated by depositing the J-aggregate nanotubes on interdigitated gold electrodes for the detection of dopamine (DA). We find that the current change of the J-aggregate nanotube-based sensor platform in response to DA is linear in the concentration range from 10 nM to 70 nM, giving the detection limit of 0.27 nM.

Cyanine Dyes, Bile Acids, J-Aggregate Nanotubes, Dopamine, Detection

Rhodes, S. , Wang, X. , Liang, W. , Cho, H. and Fang, J. (2017) Templated J-Aggregate Nanotubes for the Detection of Dopamine. Journal of Materials Science and Chemical Engineering, 5, 142-154. doi: 10.4236/msce.2017.51018.