Mechanochemical Delivery and Dynamic Tracking of Fluorescent Quantum Dots in the Cytoplasm and Nucleus of Living Cells

Yum, Kyungsuk and Na, S. and Xiang, Y and Wang, N and Yu, MF. (2009) Mechanochemical Delivery and Dynamic Tracking of Fluorescent Quantum Dots in the Cytoplasm and Nucleus of Living Cells. Nano Letters, 9 (5). p. 2193. ISSN 15306984

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Abstract

Studying molecular dynamics inside living cells is a major but highly rewarding challenge in cell biology. We present a nanoscale mechanochemical method to deliver fluorescent quantum dots (QDs) into living cells, using a membrane-penetrating nanoneedle. We demonstrate the selective delivery of monodispersed QDs into the cytoplasm and the nucleus of living cells and the tracking of the delivered QDs inside the cells. The ability to deliver and track QDs may invite unconventional strategies for studying biological processes and biophysical properties in living cells with spatial and temporal precision, potentially with molecular resolution.

Item Type: Article
Uncontrolled Keywords: SIGNAL-TRANSDUCTION; REDOX STATE; LIVE CELLS; DIFFUSION; TRANSPORT; PROTEINS; SPECTROSCOPY; RECEPTORS; MOLECULES; MEMBRANE
InterNano Taxonomy: Tool development
Collections: Nanomanufacturing Research Collection
Depositing User: Danielle Federa
Date Deposited: 17 Jun 2009 14:54
Last Modified: 17 Jun 2009 14:54
URI: http://eprints.internano.org/id/eprint/133

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