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Visual detection of copper ions based on azide- and alkyne-functionalized polydiacetylene vesicles

Title
Visual detection of copper ions based on azide- and alkyne-functionalized polydiacetylene vesicles
Authors
Xu Q.Lee K.M.Wang F.Yoon J.
Ewha Authors
윤주영Qingling Xu
SCOPUS Author ID
윤주영scopus
Issue Date
2011
Journal Title
Journal of Materials Chemistry
ISSN
0959-9428JCR Link
Citation
vol. 21, no. 39, pp. 15214 - 15217
Indexed
SCOPUS WOS scopus
Abstract
A new method for visual detection of Cu2+ based on azide- and alkyne-functionalized polydiacetylene (PDA-aa) vesicles has been developed. In the presence of ascorbic acid, Cu2+ can be reduced to Cu+ and catalyze the click reaction between the two functional groups. After incubation with Cu2+ and ascorbic acid, a PDA-aa solution changed its color from blue to red, which was attributed to conformational transition of the conjugated backbone. Other metal ions were explored but only induced negligible color changes. This method provides a naked eye detection of Cu 2+ in water without the aid of complex instruments. © 2011 The Royal Society of Chemistry.
DOI
10.1039/c1jm11660f
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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