4.7 Article

Strong polyelectrolyte quantum dot surface for stable bioconjugation and layer-by-layer assembly applications

Journal

CHEMICAL COMMUNICATIONS
Volume 47, Issue 6, Pages 1758-1760

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cc04524a

Keywords

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Funding

  1. MOST [R0A-2008-000-20114-0(2008)]
  2. Priority Research Centers Program [NRF 2009-0094037]
  3. Basic Science Research Program [20090090412, 20090090897]

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A series of quantum dot (QD) ligands are reported that can make strong polyelectrolyte QD surfaces with sulfonates or quaternary ammoniums, which can endow QDs with excellent colloidal stability independent of the pH and ionic strength, minimal hydrodynamic size, and can be exploited to achieve stable and flexible bioconjugations and layer-by-layer assembly.

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