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Functional Quantum‐Dot/Dendrimer Nanotubes for Sensitive Detection of DNA Hybridization
Author(s) -
Feng Chuan Liang,
Zhong Xin Hua,
Steinhart Martin,
Caminade AnneMarie,
Majoral Jean Pierre,
Knoll Wolfgang
Publication year - 2008
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200700453
Subject(s) - quantum dot , dendrimer , nanotechnology , luminescence , dna , biosensor , materials science , optoelectronics , chemistry , polymer chemistry , biochemistry
Hybrid nanotubes (NTs) comprising assemblies of quantum dots (QDs) and dendrimer multilayers, with a graded bandgap structure, can be formed using three types of Zn x Cd (1− x ) Se alloy QDs with luminescence maxima at λ = 561 nm (green), 594 nm (orange), and 614 nm (red). Probe DNA immobilization inside the NTs makes them ideal candidates for biosensor applications, as demonstrated by successful hybridization of labeled target DNA (see figure).