Highly sensitive DNA sensor based on upconversion nanoparticles and graphene oxide

In this work we demonstrate a DNA biosensor based on fluorescence resonance energy transfer (FRET) between NaYF4:Yb,Er nanoparticles and graphene oxide (GO). Monodisperse NaYF4:Yb,Er nanoparticles with a mean diameter of 29.1 ± 2.2 nm were synthesized and coated with a SiO2 shell of 11 nm, which all...

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Bibliographic Details
Main Authors: Alonso-Cristobal, P, Vilela, P, El-Sagheer, A, Lopez-Cabarcos, E, Brown, T, Muskens, O, Rubio-Retama, J, Kanaras, A
Format: Journal article
Language:English
Published: American Chemical Society 2015