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, 165 (5), 1255-1266

Rapid, Low-Cost Detection of Zika Virus Using Programmable Biomolecular Components

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Rapid, Low-Cost Detection of Zika Virus Using Programmable Biomolecular Components

Keith Pardee et al. Cell.

Abstract

The recent Zika virus outbreak highlights the need for low-cost diagnostics that can be rapidly developed for distribution and use in pandemic regions. Here, we report a pipeline for the rapid design, assembly, and validation of cell-free, paper-based sensors for the detection of the Zika virus RNA genome. By linking isothermal RNA amplification to toehold switch RNA sensors, we detect clinically relevant concentrations of Zika virus sequences and demonstrate specificity against closely related Dengue virus sequences. When coupled with a novel CRISPR/Cas9-based module, our sensors can discriminate between viral strains with single-base resolution. We successfully demonstrate a simple, field-ready sample-processing workflow and detect Zika virus from the plasma of a viremic macaque. Our freeze-dried biomolecular platform resolves important practical limitations to the deployment of molecular diagnostics in the field and demonstrates how synthetic biology can be used to develop diagnostic tools for confronting global health crises. PAPERCLIP.

Comment in

  • Engineering Paper-Based Sensors for Zika Virus
    RJ Meagher et al. Trends Mol Med 22 (7), 529-530. PMID 27255410.
    The emergence of Zika virus (ZIKV) infections in Latin America and Southeast Asia has created an urgent need for new, simple, yet sensitive, diagnostic tests. We highligh …

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