Researchers Save Images not with a Microchip, but with Metabolites (IMAGE)
Caption
Writing and reading data encoded in mixtures of metabolites.
(a) Binary image data is mapped onto a set of metabolite mixtures, with each bit determining the presence/absence of one compound in one mixture. For example, a spot mapped to four bits with values [0 1 0 1] may contain the 2nd and 4th metabolite at that location. (b) Small volumes of the mixtures are spotted onto a steel plate and the solvent is evaporated (scale bars: 5 mm). This chemical dataset is analyzed by MALDI mass spectrometry (b, bottom). Using the observed mass spectrum peaks, decisions are made about which metabolites are present. These decisions are assembled from the array of spots to recover the original image. The image shown is the Rhode Island Hope Regiment Colors [28].
Credit
Kennedy <em>et al</em>., 2019
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