www.nanopicoftheday.org
March 29, 2004
Quantum Dot Transporters
Source: George D.
Bachand
References:
"Assembly and Transport of Nanocrystal CdSe Quantum Dot
Nanocomposites Using Microtubules and Kinesin Motor Proteins"
George D. Bachand, Susan
B. Rivera, Andrew K. Boal, Jennifer Gaudioso, Jun Liu, and Bruce C. Bunker
Nano Lett.; 2004; ASAP Web Release Date: 26-Mar-2004; (Letter)
DOI: 10.1021/nl049811h
Description:
Nature has evolved dynamic, non-equilibrium mechanisms for assembling
hierarchical complexes of nanomaterials. A critical element to many of these
assembly mechanisms involves the active and directed transport of materials by
biomolecular motor proteins such as kinesin. In the present work, nanocrystal
quantum dots (nQDs) were assembled and organized using microtubule (MT)
filaments as nanoscale scaffolds. This image is a fluorescence micrograph
showing the nQD-MT filaments composed of FITC-labeled tubulin (green) and nQD-coated
region (red). This active transport system will be further refined to
control the optical properties of a surface by regulating the collective
organization of nQD-MT composites.
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