Volume 48, Issue 48 pp. 9143-9147
Communication

Multimodal Gadolinium-Enriched DNA–Gold Nanoparticle Conjugates for Cellular Imaging

Ying Song

Ying Song

Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (1) 847-491-3832, Fax: (1) 847-467-5123

These authors contributed equally to this work.

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Xiaoyang Xu

Xiaoyang Xu

Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (1) 847-491-3832, Fax: (1) 847-467-5123

These authors contributed equally to this work.

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Keith W. MacRenaris

Keith W. MacRenaris

Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (1) 847-491-3832, Fax: (1) 847-467-5123

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Xue-Qing Zhang Dr.

Xue-Qing Zhang Dr.

Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208 (USA)

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Chad A. Mirkin Prof.

Chad A. Mirkin Prof.

Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (1) 847-491-3832, Fax: (1) 847-467-5123

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Thomas J. Meade Prof.

Thomas J. Meade Prof.

Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA), Fax: (1) 847-491-3832, Fax: (1) 847-467-5123

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First published: 11 November 2009
Citations: 172

We acknowledge financial support of the NCI/CCNE grant no. CA119341 and NIH grant no. R01EB005866. We thank E. Alex Waters for help with the 3T solution phantom images.

Graphical Abstract

Conjugate agent: A GdIII enriched DNA-AuNP conjugate for intracellular magnetic resonance and fluorescence imaging is reported. The agent exhibits high relaxivity per particle and high cell uptake properties that provide a means to image and map small cell populations.

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