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Investigation of Forster resonance energy transfer (FRET) and competition of fluorescent dyes on DNA microparticles.


ABSTRACT: Fluorescent labeling is widely used to investigate the structural stability and changes to DNA nano- and microstructures. Despite this, the conventional method for observing DNA structures has several limitations in terms of cost-efficiency. This paper introduces a DNA spherical particle stained with DNA intercalating dyes (SYBR Green and SYTOX Orange) as tracers and reports the interaction between multiple dyes. The interference between the dyes was analyzed in terms of Förster resonance energy transfer (FRET) and competition. The changes in the fluorescence intensity by FRET were uniform, regardless of the sequence. The competition effect could occur when several dyes were added simultaneously. These properties are expected to help in the design of multicolor tracers in bioimaging and environmental applications.

SUBMITTER: Kim J 

PROVIDER: S-EPMC4425046 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature

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