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A redox-based electrogenetic CRISPR system to connect with and control biological information networks
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A redox-based electrogenetic CRISPR system to connect with and control biological information networks
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Journal Article
A redox-based electrogenetic CRISPR system to connect with and control biological information networks
2020
Overview
Electronic information can be transmitted to cells directly from microelectronics via electrode-activated redox mediators. These transmissions are decoded by redox-responsive promoters which enable user-specified control over biological function. Here, we build on this redox communication modality by establishing an electronic eCRISPR conduit of information exchange. This system acts as a biological signal processor, amplifying signal reception and filtering biological noise. We electronically amplify bacterial quorum sensing (QS) signaling by activating LasI, the autoinducer-1 synthase. Similarly, we filter out unintended noise by inhibiting the native SoxRS-mediated oxidative stress response regulon. We then construct an eCRISPR based redox conduit in both
E. coli
and
Salmonella enterica
. Finally, we display eCRISPR based information processing that allows transmission of spatiotemporal redox commands which are then decoded by gelatin-encapsulated
E. coli
. We anticipate that redox communication channels will enable biohybrid microelectronic devices that could transform our abilities to electronically interpret and control biological function.
Redox-responsive transcriptional regulators can enable user-specified electronic control over biological functions. Here the authors demonstrate electronic control of CRISPRa and CRISPRi using redox signalling.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
