Standing-wave-excited multiplanar fluorescence in a laser scanning microscope reveals 3D information on red blood cells.

Standing-wave-excited multiplanar fluorescence in a laser scanning microscope reveals 3D information on red blood cells.
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DOI:
10.1038/srep07359
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发表时间:
2014-12-08
期刊:
影响因子:
4.6
通讯作者:
McConnell G
McConnell G
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Amor R;Mahajan S;Amos WB;McConnell G

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Standing-wave excitation of fluorescence is highly desirable in optical microscopy because it improves the axial resolution. We demonstrate here that multiplanar excitation of fluorescence by a standing wave can be produced in a single-spot laser scanning microscope by placing a plane reflector close to the specimen. We report here a variation in the intensity of fluorescence of successive planes related to the Stokes shift of the dye. We show by the use of dyes specific for the cell membrane how standing-wave excitation can be exploited to generate precise contour maps of the surface membrane of red blood cells, with an axial resolution of ≈90 nm. The method, which requires only the addition of a plane mirror to an existing confocal laser scanning microscope, may well prove useful in studying diseases which involve the red cell membrane, such as malaria.
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发表时间: 1997-09-01
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