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- W4226427439 abstract "Abstract In late 2019 SARS-CoV-2 rapidly spread to become a global pandemic, therefore, measures to attenuate chains of infection, such as high-throughput screenings and isolation of carriers were taken. Prerequisite for a reasonable and democratic implementation of such measures, however, is the availability of sufficient testing opportunities (beyond reverse transcription PCR, the current gold standard). We, therefore, propose an electrochemical, microfluidic multiplexed biosensor in combination with CRISPR/Cas-powered assays for point-of-care nucleic acid testing. In this study, we simultaneously screen for and identify SARS-CoV-2 infections (Omicron-variant) in clinical specimens (Sample-to-result time: ∼30 min), employing LbuCas13a, whilst bypassing reverse transcription as well as target amplification of the viral RNA, both of which are necessary for detection via PCR and multiple other methods. In addition, we demonstrate the feasibility of combining assays based on different classes of biomolecules, in this case protein-based antibiotic detection, on the same device. The programmability of the effector and multiplexing capacity (up to six analytes) of our platform, in combination with a miniaturized measurement setup, including a credit card sized near field communication (NFC) potentiostat and a microperistaltic pump, provide a promising on-site tool for identifying individuals infected with variants of concern and monitoring their disease progression alongside other potential biomarkers or medication clearance." @default.
- W4226427439 created "2022-05-05" @default.
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- W4226427439 date "2022-04-06" @default.
- W4226427439 modified "2023-09-29" @default.
- W4226427439 title "Multiplexed biosensor for point-of-care COVID-19 monitoring: CRISPR-powered unamplified RNA diagnostics and protein-based therapeutic drug management" @default.
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- W4226427439 doi "https://doi.org/10.1101/2022.03.30.22271928" @default.
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