Clustering of CdSe/CdS Quantum Dot/Quantum Rods into Micelles Can Form Bright, Non-blinking, Stable, and Biocompatible Probes.
We investigate clustered CdSe/CdS quantum dots/quantum rods, ranging from single to multiple encapsulated rods within amphiphilic diblock copolymer micelles, by time-resolved optical spectroscopy. The effect of the clustering and the cluster size on the optical properties is addressed. The clusters are bright and stable and show no blinking while retaining the fundamental optical properties of the individual quantum dots/quantum rods. Cell studies show neither unspecific uptake nor morphological changes of the cells, despite the increased sizes of the clusters.
Institut für Physikalische Chemie, Universität Hamburg , Grindelallee 117, 20146 Hamburg, Germany.|The Hamburg Centre for Ultrafast Imaging (CUI) , Luruper Chaussee 149, 22761 Hamburg, Germany.
Mona
M
Rafipoor
Christian
C
Schmidtke
Institut für Physikalische Chemie, Universität Hamburg , Grindelallee 117, 20146 Hamburg, Germany.
Christopher
C
Wolter
Institut für Physikalische Chemie, Universität Hamburg , Grindelallee 117, 20146 Hamburg, Germany.
Christian
C
Strelow
Institut für Physikalische Chemie, Universität Hamburg , Grindelallee 117, 20146 Hamburg, Germany.|The Hamburg Centre for Ultrafast Imaging (CUI) , Luruper Chaussee 149, 22761 Hamburg, Germany.|Department of Chemistry, Faculty of Science, King Abdulaziz University , Jeddah, Saudi Arabia.
Horst
H
Weller
Institut für Physikalische Chemie, Universität Hamburg , Grindelallee 117, 20146 Hamburg, Germany.|The Hamburg Centre for Ultrafast Imaging (CUI) , Luruper Chaussee 149, 22761 Hamburg, Germany.
Holger
H
Lange
D001672:Biocompatible Materials / Q000737:chemistry*; D019187:Cadmium Compounds / Q000737:chemistry*; D008823:Micelles; D010316:Particle Size; D011108:Polymers / Q000737:chemistry; D045663:Quantum Dots; D018036:Selenium Compounds / Q000737:chemistry*; D013440:Sulfides / Q000737:chemistry*; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry
D001672:Biocompatible Materials; D019187:Cadmium Compounds; D008823:Micelles; D011108:Polymers; D018036:Selenium Compounds; D013440:Sulfides; D013501:Surface-Active Agents; C034939:cadmium sulfide; C058667:cadmium selenide