Title

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

Authors

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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