Ion-selective nanoplasmonic optical sensor

Taewook Kang; Yeonho Choi; Dukhyun Choi; Eunice Lee; Luke P. Lee

Ion-selective nanoplasmonic optical sensor

Taewook Kang, Yeonho Choi, Dukhyun Choi, Eunice Lee, Luke P. Lee

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, we demonstrate a label-free ion-selective optical sensor for metal ion. This sensing mechanism is based on (1) selective formation of metal-ligand complex on the surface of nanoplasmonic probes and (2) selective plasmonic resonance energy transfer (PRET) between conjugated metal-ligand complex and gold nanoplasmonic probes (GNPs). We used functionalized GNP with ethylenediamine ligands in order to demonstrate high selectivity and sensitivity toward Cu²⁺. Due to the selective energy transfer from GNP to dd transition of the Cu²⁺ complex, the scattering spectrum of GNP changes quantitatively down to 1 nM of Cu²⁺. Moreover, this Cu²⁺ nanoplasmonic senor has selectivity over Na⁺, Ca²⁺, K⁺, and Mg²⁺

Original language	English
Title of host publication	Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007
Editors	Jean-Louis Viovy, Patrick Tabeling, Stephanie Descroix, Laurent Malaquin
Publisher	Chemical and Biological Microsystems Society
Pages	464-466
Number of pages	3
ISBN (Electronic)	9780979806407
Publication status	Published - 2007
Externally published	Yes
Event	11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007 - Paris, France Duration: 2007 Oct 7 → 2007 Oct 11

Publication series

Name	Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007

Conference

Conference	11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007
Country/Territory	France
City	Paris
Period	07/10/7 → 07/10/11

Bibliographical note

Funding Information:
This work was supported by a grant (code #: 05K1501-02810) from ‘Center for Nanostructured Materials Technology’ under ‘21st Century Frontier R&D Programs’ of the Ministry of Science and Technology, Korea.

Publisher Copyright:
© 2007 CBMS.

Keywords

Gold Nanoparticle
Metal-Ligand Complex
Plasmonic Resonance Energy Transfer
Rayleigh Scattering

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Bioengineering

Cite this

Kang, T., Choi, Y., Choi, D., Lee, E., & Lee, L. P. (2007). Ion-selective nanoplasmonic optical sensor. In J.-L. Viovy, P. Tabeling, S. Descroix, & L. Malaquin (Eds.), Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007 (pp. 464-466). (Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007). Chemical and Biological Microsystems Society.

Ion-selective nanoplasmonic optical sensor. / Kang, Taewook; Choi, Yeonho; Choi, Dukhyun et al.
Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007. ed. / Jean-Louis Viovy; Patrick Tabeling; Stephanie Descroix; Laurent Malaquin. Chemical and Biological Microsystems Society, 2007. p. 464-466 (Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kang, T, Choi, Y, Choi, D, Lee, E & Lee, LP 2007, Ion-selective nanoplasmonic optical sensor. in J-L Viovy, P Tabeling, S Descroix & L Malaquin (eds), Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007. Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007, Chemical and Biological Microsystems Society, pp. 464-466, 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007, Paris, France, 07/10/7.

Kang T, Choi Y, Choi D, Lee E, Lee LP. Ion-selective nanoplasmonic optical sensor. In Viovy JL, Tabeling P, Descroix S, Malaquin L, editors, Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007. Chemical and Biological Microsystems Society. 2007. p. 464-466. (Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007).

Kang, Taewook ; Choi, Yeonho ; Choi, Dukhyun et al. / Ion-selective nanoplasmonic optical sensor. Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007. editor / Jean-Louis Viovy ; Patrick Tabeling ; Stephanie Descroix ; Laurent Malaquin. Chemical and Biological Microsystems Society, 2007. pp. 464-466 (Proceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007).

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N1 - Funding Information: This work was supported by a grant (code #: 05K1501-02810) from ‘Center for Nanostructured Materials Technology’ under ‘21st Century Frontier R&D Programs’ of the Ministry of Science and Technology, Korea. Publisher Copyright: © 2007 CBMS.

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AB - In this paper, we demonstrate a label-free ion-selective optical sensor for metal ion. This sensing mechanism is based on (1) selective formation of metal-ligand complex on the surface of nanoplasmonic probes and (2) selective plasmonic resonance energy transfer (PRET) between conjugated metal-ligand complex and gold nanoplasmonic probes (GNPs). We used functionalized GNP with ethylenediamine ligands in order to demonstrate high selectivity and sensitivity toward Cu2+. Due to the selective energy transfer from GNP to dd transition of the Cu2+ complex, the scattering spectrum of GNP changes quantitatively down to 1 nM of Cu2+. Moreover, this Cu2+ nanoplasmonic senor has selectivity over Na+, Ca2+, K+, and Mg2+

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ER -

Ion-selective nanoplasmonic optical sensor

Abstract

Publication series

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

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