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Download Hi-Res ImageDownload to MS-PowerPointCite This:Langmuir 2011, 27, 4, 1543-1545
RETURN TO ISSUEPREVDevices and Applicat...Devices and Applications: Sensors, Fluidics, Patterning, Catalysis, Photonic Crystals

Supramolecular Functionalization of Electron-Beam Generated Nanostructures†

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‡ Department of Chemistry
§ Department of Physics
University of Massachusetts, Amherst, Massachusetts 01003, United States
*Corresponding author. E-mail: [email protected]
Cite this: Langmuir 2011, 27, 4, 1543–1545
Publication Date (Web):November 29, 2010
https://doi.org/10.1021/la1039514
Copyright © 2010 American Chemical Society
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    Abstract

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    Electron-beam lithography was used to pattern poly(styrene-co-(methyldiaminotriazine) styrene) (PS-Triaz). These polymer nanopatterns were utilized as molecular scaffolds for assembling complementary thymine-functionalized CdSe-ZnS quantum dots (Thy-QDs) via three-point hydrogen-bonding molecular recognition. This interaction was very specific, with N-methyl thymine-functionalized QDs (MeThy-QDs) not depositing on the surfaces. The “lock and key” specificity of the assembly is mirrored in the disassembly process, where complete removal of the QD was observed using a competing thymine guest.

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    Part of the Supramolecular Chemistry at Interfaces special issue.

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    AFM images of a pattern after the assembly of Thy-QD and of S1a after incubation in thymine acetate and N-methylated thymine acetate solutions. PS-Triaz preparation. NMR of poly(styrene-p-(cyanomethyl)styrene-co-PS-CH2CN (2) and poly(styrene-p-(methyldiaminotriazine)styrene-co-PS-CH2C3N5H4. Synthesis of CdSe-ZnS QDs and Thy- and N-methylthymine-functionalized CdSe-ZnS QDs. This material is available free of charge via the Internet at http://pubs.acs.org.

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