Article
Observing photophysical properties of quantum dots in air at the single molecule level: advantages in microarray applications.
Biological College, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan 410082, China.
Lab on a Chip (impact factor:
5.67).
11/2010;
10(21):2844-7.
DOI:10.1039/c005258b
pp.2844-7
Source: PubMed
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Citations (0)
- Cited In (1)
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Article: Simple Förster resonance energy transfer evidence for the ultrahigh quantum dot quenching efficiency by graphene oxide compared to other carbon structures
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ABSTRACT: Förster resonance energy transfer (FRET) entails the transfer of energy from a photoexcited energy donor to a close energy acceptor. In this regard, quantum dots (QDs), as donors, are quenched when they are next to an acceptor material. Graphite, carbon nanotubes (CNTs), carbon nanofibers (CNFs) and graphene oxide (GO) were explored as energy acceptors of QD FRET donors in the solid phase. In our setup, the higher estimated values of quenching efficiency for each material are as follows: graphite, 66 ± 17%; CNTs, 71 ± 1%; CNFs, 74 ± 07% and GO, 97 ± 1%. Among these materials, GO is the best acceptor of QD FRET donors in the solid phase. Such an ultrahigh quenching efficiency by GO and the proposed simple mechanism may open the way to several interesting applications in the field of biosensing.Carbon 07/2012; 50(8):2987–2993. · 5.38 Impact Factor
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Keywords
air/solid interface
beneficial properties
higher fluorescence signal
higher photo-stability
individual quantum dots
liquid/solid interface
photophysical characteristics
Quantum dots
shorter bulk fluorescence lifetime
slower spectral blue shift rate
wide-field fluorescence microscope
