Monitoring the RNA distribution in human embryonic stem cells using Raman micro-spectroscopy and fluorescence imaging

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Abstract

The aim of this study was to monitor the intracellular distribution of nucleic acids in human embryonic stem cells. Raman micro-spectroscopy and fluorescence imaging investigations were employed to obtain high-spatial resolution maps of nucleic acids. The DNA Raman signal was identified based on the 782 cm-1 band, while the RNA characteristic signal was detected based on the 813 cm-1 fingerprint band assigned to O-P-O symmetric stretching vibrations. Additionally, principal components analysis was performed and nucleic acids characteristic Raman signals were identified in the data set, which were plotted at each position in the cells. In this manner, high intensity RNA signal was identified in the cells nucleolus and cytoplasm, while the nucleus presented a much lower signal. © 2013 AIP Publishing LLC.

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Falamas, A., Kalra, S., Chis, V., & Notingher, I. (2013). Monitoring the RNA distribution in human embryonic stem cells using Raman micro-spectroscopy and fluorescence imaging. In AIP Conference Proceedings (Vol. 1565, pp. 43–47). https://doi.org/10.1063/1.4833693

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