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Biomed Opt Express. 2011 Apr 26;2(5):1340-50. doi: 10.1364/BOE.2.001340.

In vivo fluorescence lifetime optical projection tomography.

Abstract

We demonstrate the application of fluorescence lifetime optical projection tomography (FLIM-OPT) to in vivo imaging of lysC:GFP transgenic zebrafish embryos (Danio rerio). This method has been applied to unambiguously distinguish between the fluorescent protein (GFP) signal in myeloid cells from background autofluorescence based on the fluorescence lifetime. The combination of FLIM, an inherently ratiometric method, in conjunction with OPT results in a quantitative 3-D tomographic technique that could be used as a robust method for in vivo biological and pharmaceutical research, for example as a readout of Förster resonance energy transfer based interactions.

KEYWORDS:

(170.3650) Lifetime-based sensing; (170.6900) Three-dimensional microscopy; (170.6920) Time-resolved imaging; (170.6960) Tomography

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