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

Qingling Xu; Kyung Mi Lee; Fang Wang; Juyoung Yoon

doi:10.1039/c1jm11660f

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

Qingling Xu, Kyung Mi Lee, Fang Wang, Juyoung Yoon

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

83 Scopus citations

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.

Original language	English
Pages (from-to)	15214-15217
Number of pages	4
Journal	Journal of Materials Chemistry
Volume	21
Issue number	39
DOIs	https://doi.org/10.1039/c1jm11660f
State	Published - 21 Oct 2011

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title = "Visual detection of copper ions based on azide- and alkyne-functionalized polydiacetylene vesicles",

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.",

author = "Qingling Xu and Lee, {Kyung Mi} and Fang Wang and Juyoung Yoon",

year = "2011",

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doi = "10.1039/c1jm11660f",

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journal = "Journal of Materials Chemistry",

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AU - Xu, Qingling

AU - Lee, Kyung Mi

AU - Wang, Fang

AU - Yoon, Juyoung

PY - 2011/10/21

Y1 - 2011/10/21

N2 - 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.

AB - 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.

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DO - 10.1039/c1jm11660f

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VL - 21

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EP - 15217

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

IS - 39

ER -

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

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