Colloidal CdSe nanocrystals passivated by a dye-labeled multidentate polymer: Quantitative analysis by size-exclusion chromatography

Mingfeng Wang, Tieneke E. Dykstra, Xudong Lou, Mayrose R. Salvador, Gregory D. Scholes, Mitchell A. Winnik

Research output: Contribution to journalArticle

48 Scopus citations

Abstract

(Figure Presented) Hold on tight: Pyrene-labeled poly(dimethylaminoethyl methacrylate) (Pyr-PDMAEMA) was synthesized as a multi-dentate ligand for CdSe nanocrystals (NCs, see picture). The mean number of polymers that bind to each NC can be determined by a quantitative analytical method based on size-exclusion chromatography. Spectroscopic characterization of the eluted particles shows that Pyr-PDMAEMA binds tightly to these NCs.

Original languageEnglish (US)
Pages (from-to)2221-2224
Number of pages4
JournalAngewandte Chemie - International Edition
Volume45
Issue number14
DOIs
StatePublished - Mar 27 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Keywords

  • Cadmium selenide
  • Nanocrystals
  • Polymers
  • Quantum dots
  • Size-exclusion chromatography

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