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In situ observation of a cell adhesion and metabolism using surface infrared spectroscopy

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Abstract

In this study, we report on an in situ monitoring system of living cultured cells using infrared absorption spectroscopy in the geometry of multiple internal reflections (MIR-IRAS). In order to observe living cultured cells, the temperature in the sample chamber of a FT-IR spectrometer was maintained at 37 °C and a humidified gas mixture containing 5% CO2 was introduced into the sample chamber. Human breast cell line MCF-7 cultured on Si MIR prisms were placed in the sample chamber and infrared spectra of MCF-7 cells were collected for 5 h. It was found that the adhesion and metabolism of MCF-7 cells could be monitored by the absorption intensity of amide-II protein band (1,545 cm−1) and also by the absorption intensities of CH x bands (2,700–3,100 cm−1). These results suggest that our system is useful for a nondestructive and non-label monitoring of cell viability. Our method based on infrared absorption spectroscopy has a potential for bioscreening application.

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Acknowledgement

Part of this work was supported by Grants-in-Aid for Scientific Research (Grant No. 17206004) from the Japan Society for the Promotion of Science (JSPS).

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Correspondence to Hiroko Isoda.

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Miyamoto, Ki., Yamada, P., Yamaguchi, Rt. et al. In situ observation of a cell adhesion and metabolism using surface infrared spectroscopy. Cytotechnology 55, 143–149 (2007). https://doi.org/10.1007/s10616-007-9111-2

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  • DOI: https://doi.org/10.1007/s10616-007-9111-2

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