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With the cell in place, the researchers gradually increased the power of the blue laser and watched how the green fluorescence changed as a result.

细胞放到位置以后，研究者一步步提高蓝色激光的功率，观察绿色荧光的变化。

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Endothelial cell attached to synthetic microfibers, stained with microtubules, F-actin and nuclei (2500x), Fluorescence, confocal.

附着在合成超细纤维上的内皮细胞，微管、肌动蛋白和胞核已染色(2500倍)，荧光和激光共焦显微镜。

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The antibodies were tagged with a fluorescence marker so that the time and place of the structures' emergence in the cell cycle could be noted and imaged.

BBC: 'Quadruple helix' DNA seen in human cells