We develop mid-infrared optoacoustic microscopy (MiROM) for label-free, bond-selective, live-cell metabolic imaging, enabling spatiotemporal monitoring of carbohydrates, lipids and proteins in cells and tissues. Using acoustic detection of optical absorption, MiROM converts mid-infrared sensing into a positive-contrast imaging modality with negligible photodamage and high sensitivity. We use MiROM to observe changes in intrinsic carbohydrate distribution from a diffusive spatial pattern to tight co-localization with lipid droplets during adipogenesis.
CITATION STYLE
Pleitez, M. A., Khan, A. A., Soldà, A., Chmyrov, A., Reber, J., Gasparin, F., … Ntziachristos, V. (2020). Label-free metabolic imaging by mid-infrared optoacoustic microscopy in living cells. Nature Biotechnology, 38(3), 293–296. https://doi.org/10.1038/s41587-019-0359-9
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