| 光谱学与光谱分析 |
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| Intensity Loss of Two-Photon Excitation Fluorescence Microscopy Images of Mouse Oocyte Chromosomes |
| ZHAO Feng-ying1, WU Hong-xin2, CHEN Die-yan1, MA Wan-yun1* |
1. State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084，China
2. Department of Automation, Tsinghua University，Beijing 100084，China |
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Abstract As an optical microscope with high resolution, two-photon excitation (TPE) fluorescence microscope is widely used in noninvasive 3D optical imaging of biological samples. Compared with confocal laser scanning microscope, TPE fluorescence microscope provides a deeper detecting depth. In spite of that, the image quality of sample always declines as the detecting depth increases when a noninvasive 3D optical imaging of thicker samples is performed. Mouse oocytes with a large diameter, which play an important role in clinical and biological fields, have obvious absorption and scattering effects. In the present paper, we performed compensation for two-photon fluorescence images of mouse oocyte chromosomes. Using volume as a parameter, the attenuation degree of these chromosomes was also studied. The result of our data suggested that there exists a severe axial intensity loss in two-photon microscopic images of mouse oocytes due to the absorption and scattering effects. It is necessary to make compensation for these images of mouse oocyte chromosomes obtained from two-photon microscopic system. It will be specially needed in studying the quantitative three-dimensional information of mouse oocytes.
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Received: 2013-07-08
Accepted: 2013-10-27
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Corresponding Authors:
MA Wan-yun
E-mail: mawy@tsinghua.edu.cn
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