期刊
OPTICS EXPRESS
卷 18, 期 8, 页码 8688-8696出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.18.008688
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- National Institutes of Health (NIH) [CA-114542]
Fluorophore excited state lifetime is a useful indicator of microenvironment in cellular optical molecular imaging. For quantitative sensing, precise lifetime determination is important, yet is often difficult to accomplish when using the experimental conditions favored by live cells. Here we report the first application of temporal optimization and spatial denoising methods to two-photon time-correlated single photon counting (TCSPC) fluorescence lifetime imaging microscopy (FLIM) to improve lifetime precision in live-cell images. The results demonstrated a greater than five-fold improvement in lifetime precision. This approach minimizes the adverse effects of excitation light on live cells and should benefit FLIM applications to high content analysis and bioimage informatics. (C) 2010 Optical Society of America
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