Article Dans Une Revue Angewandte Chemie International Edition Année : 2018

Sequences of Sequences: Spatial Organization of Coded Matter through Layer-by-Layer Assembly of Digital Polymers

Michel Tschopp
Olivier Felix
Gero Decher
Jean-François Lutz

Résumé

A library of 16 digitally encoded polyanions was used in a layer-by-layer (LbL) polyelectrolyte assembly to nanofabricate thin films containing digitally coded strata. The polyanions were digital polyphosphodiesters (d-PPDE) prepared via an automated phosphoramidite process. Each component of the library contained 10 bytes of ASCII-encoded text (i.e. 80 coded monomers); thus the entire library allows the writing of a full sentence, which can be stored in a multilayer film as a sequence of sequences. To prepare fully segregated digital domains, non-coded layers composed of poly(allylamine hydrochloride) (PAH)/poly(sodium 4-styrenesulfonate) (PSS) were included between the d-PPDE coded layers as an intermediate barrier. Detailed analysis of the film homogeneity indicated formation of 70 nm-thick films in which digital layers are kept apart from another by non-coded interlayers. As a result, the sequence-coded polymer library could be piled-up in a defined sequence of layers.

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hal-02335096 , version 1 (08-02-2022)

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Roza Szweda, Michel Tschopp, Olivier Felix, Gero Decher, Jean-François Lutz. Sequences of Sequences: Spatial Organization of Coded Matter through Layer-by-Layer Assembly of Digital Polymers. Angewandte Chemie International Edition, 2018, 57 (48), pp.15817-15821. ⟨10.1002/anie.201810559⟩. ⟨hal-02335096⟩
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