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Advanced fluorescence biosensor utilizing nitrogen/oxygen-doped carbon quantum dots in a modified carboxy cellulose matrix for quantitative detection of SARS-CoV-2 spike protein

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The persistent need for fast and sensitive point-of-care (POC) diagnostics for SARS-CoV-2 requires alternatives to time-consuming RT-PCR. To address this challenge, we designed and fabricated a novel fluorescence biosensor based on nitrogen/oxygen-doped carbon... ...