Strong polyelectrolyte quantum dot surface for stable bioconjugation and layer-by-layer assembly applications.
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.
Department of Chemistry, Pohang University of Science and Technology, Kyungbuk, 790784, South Korea.
Ho
H
Jin
Jutaek
J
Nam
Joonhyuck
J
Park
Sungho
S
Jung
Kyuhyun
K
Im
Jaehyun
J
Hur
Jong-Jin
JJ
Park
Jong-Min
JM
Kim
Sungjee
S
Kim
D057446:Hydrodynamics; D006863:Hydrogen-Ion Concentration; D008024:Ligands; D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D008856:Microscopy, Fluorescence; D055095:Optics and Photonics / Q000379:methods*; D009994:Osmolar Concentration; D045663:Quantum Dots; D000644:Quaternary Ammonium Compounds / Q000737:chemistry; D013451:Sulfonic Acids / Q000737:chemistry; D013499:Surface Properties
D008024:Ligands; D000644:Quaternary Ammonium Compounds; D013451:Sulfonic Acids