Self-Assembly of J-Aggregate Nanotubes and Their Applications for Sensing Dopamine

    Authors

    Langmuir

    Comments

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    Abbreviated Journal Title

    J. Disp. Technol.

    Keywords

    AIR-WATER-INTERFACE; CAPILLARY-ELECTROPHORESIS; ENERGY-TRANSFER; CYCLIC; VOLTAMMETRY; CHARGE-TRANSPORT; CYANINE DYE; IN-VITRO; PH; FLUORESCENCE; BRAIN; Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science, ; Multidisciplinary

    Abstract

    J-aggregates are an attractive supramolecular structure with interesting excitation properties found in the light-harvesting antenna of green sulfur bacteria. To structurally mimic the light-harvesting antenna, we synthesize J-aggregate nanotubes with a sharp and intense absorption band (J-band) by the coassembly of lithocholic acid (LCA) and 3,3'-dipropylthiadicarbocyanine iodide (DiSC(3)(5)) in aqueous solution. We show that the J-aggregate nanotubes can be used as a supramolecular probe for the sensitive and selective detection of dopamine (DA) in phosphate buffered saline (PBS) solution with the detection limit of similar to 0.4 nM by simply observing the intensity change of the J-band due to the efficient photoinduced electron transfer from the J-aggregate nanotubes to the adsorbed DA.

    Subjects

    W. L. Liang; S. H. He;J. Y. Fang

    Volume

    30

    Issue/Number

    3

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    805

    Last Page

    811

    WOS Identifier

    WOS:000330543700017

    ISSN

    0743-7463

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