2D printed multicellular devices performing digital and analogue computation

Sira Mogas-Díez, Eva Gonzalez-Flo and Javier Macía ()
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Sira Mogas-Díez: Biomedical Research Park
Eva Gonzalez-Flo: Biomedical Research Park
Javier Macía: Biomedical Research Park

Nature Communications, 2021, vol. 12, issue 1, 1-10

Abstract: Abstract Much effort has been expended on building cellular computational devices for different applications. Despite the significant advances, there are still several addressable restraints to achieve the necessary technological transference. These improvements will ease the development of end-user applications working out of the lab. In this study, we propose a methodology for the construction of printable cellular devices, digital or analogue, for different purposes. These printable devices are designed to work in a 2D surface, in which the circuit information is encoded in the concentration of a biological signal, the so-called carrying signal. This signal diffuses through the 2D surface and thereby interacts with different device components. These components are distributed in a specific spatial arrangement and perform the computation by modulating the level of the carrying signal in response to external inputs, determining the final output. For experimental validation, 2D cellular circuits are printed on a paper surface by using a set of cellular inks. As a proof-of-principle, we have printed and analysed both digital and analogue circuits using the same set of cellular inks but with different spatial topologies. The proposed methodology can open the door to a feasible and reliable industrial production of cellular circuits for multiple applications.

Date: 2021
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DOI: 10.1038/s41467-021-21967-x

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