A ratiometric luminescent oxygen sensor based on a chemically functionalized quantum dot.
Nanoconjugates composed of CdSe-ZnS core-shell nanocrystals and pyrenyl ligands are shown to exhibit a double photoluminescence. Owing to the different response of the two emission signals towards oxygen, the nanocrystals function as high dynamic range ratiometric luminescent O(2) nanosensors.
Amelia
Matteo
M
Dipartimento di Chimica G.Ciamician, Università di Bologna, Via Selmi 2, 40126 Bologna, Italy.
Lavie-Cambot
Aurélie
A
McClenaghan
Nathan D
ND
Credi
Alberto
A
D019187:Cadmium Compounds / Q000737:chemistry; D004566:Electrodes; D008024:Ligands; D049449:Luminescence; D053758:Nanoparticles / Q000737:chemistry; D010100:Oxygen / Q000032:analysis*; D045663:Quantum Dots; D018036:Selenium Compounds / Q000737:chemistry; D013440:Sulfides / Q000737:chemistry; D017967:Zinc Compounds / Q000737:chemistry
D019187:Cadmium Compounds; D008024:Ligands; D018036:Selenium Compounds; D013440:Sulfides; D017967:Zinc Compounds; C058667:cadmium selenide; C031238:zinc sulfide; D010100:Oxygen