Layer-by-Layer Surface Modification and Patterned Electrostatic Deposition of Quantum Dots
作者： Saeeda Jaffar , Ki Tae Nam , Ali Khademhosseini , Jia Xing , Robert S. Langer
DOI: 10.1021/NL0493287
关键词:
摘要: Modification of ZnS-capped CdSe quantum dot (QD) surfaces with polyelectrolyte coatings and subsequent layer-by-layer deposition to build hierarchical structures are presented. Mercaptoacetic acid (MAA)-treated QDs were sequentially coated polyallylamine (PAA) polyvinylsulfonic (PVSA) analyzed using zeta potentials, absorbance spectra, transmission electron microscopy. The modified deposited on patterned hyaluronic (HA) glass substrates produce self-assembled heterostructures (QDs-MAA/QDs-PAA/HA/glass), as revealed by fluorescence atomic force
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