Templated J-Aggregate Nanotubes for the Detection of Dopamine

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DOI: 10.4236/msce.2017.51018    1,772 Downloads   3,348 Views  Citations

ABSTRACT

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.

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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.

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