Data storage in sequence-defined macromolecules via multicomponent reactions

Abstract Sequence-defined and information coding macromolecules suitable for data storage materials were synthesized via a combination of two multicomponent reactions. Thus, a well-established protocol based on the Passerini reaction was combined for the first time with the Biginelli reaction for monomer synthesis to explore new sequence-defined materials by exploiting the high structural variety of two multicomponent reactions. The information was encoded via the variation of six different components per repeating unit choosing from a list of more than 100 components that can potentially be applied. The structural variety of the oligomers that can achieved using this approach offers an information density of up to 24 bits per repeat unit. The information was read out via tandem mass spectrometry, wherein the predominant fragmentation processes were identified and subsequently applied for reading out the information contained within several macromolecules, i.e. by sequencing and re-establishing the structure of these macromolecules.

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