Quantum dot to quantum dot Forster resonance energy transfer: engineering materials for visual color change sensing.

ABSTRACT: In this work, quantum dots (QDs) of various heterostructured compositions and shell thicknesses are used as Förster or fluorescence resonance energy transfer (FRET) donors and acceptors to optimize QD-QD FRET sensing through materials design. While several reports have highlighted the advantages of using QD-dye, rather than dye-dye, FRET in sensing applications, QD-QD FRET has lagged behind in development as a result of high background signal from direct acceptor excitation. However, in designing sensors for longitudinal studies, QD-dye sensors are limited by the photostability of the fluorescent dye. While fluorescence generally affords higher sensitivity than absorbance-based readouts, the instrumentation needed for detecting fluorescence can be expensive, motivating the development of s

SUBMITTER: Chern M 

PROVIDER: S-EPMC8275315 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature