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Raman microscopy of cells: chemical imaging of apoptosis

机译:细胞的拉曼显微镜:细胞凋亡的化学成像

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摘要

Singular value decomposition was applied to the set of the non-resonant Raman spectra, recorded during Raman imaging of the single apoptotic cell. The basis vectors and the corresponding singular values were assessed in terms of their statistical significance. The noise-containing basis vectors were rejected while keeping the meaningful ones. In this way the Raman images of the apoptotic cell were successfully reconstructed from the spectrally-filtered data matrix. The results are demonstrated on the spatial distribution of the DNA, protein and phospholipids, present in the fragments of the apoptotic cell.
机译:将奇异值分解应用于在单个凋亡细胞的拉曼成像过程中记录的一组非共振拉曼光谱。基本向量和相应的奇异值根据其统计意义进行评估。包含噪声的基向量在保留有意义的基向量的同时被拒绝。这样,从光谱过滤后的数据矩阵中成功地重建了凋亡细胞的拉曼图像。结果表明存在于凋亡细胞片段中的DNA,蛋白质和磷脂的空间分布。

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