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Article Abstract

Recent COVID-19 pandemic has raised an urgent need for effective strategies to combat viruses that can pose serious health threats to the entire human race. Incorporating antipathogenic functions into everyday objects and personal protective equipment has become increasingly important, motivating the development of general-purpose antiviral materials. Single-atom catalysts, known for superior catalytic performance and maximized atomic utilization, have been explored in various research fields, including artificial nanozymes for bioapplications. We present reduced graphene oxide (rGO)-supported Fe-N single-atom catalyst-based nanozyme (Fe-N-rGO) capable of achieving 99.99% viral deactivation against influenza A virus, outperforming bulk and nanoscale counterparts. The antiviral mechanism is attributed to the strong adsorption of hemagglutinin on the viral surface, leading to protein denaturation along with the potential generation of reactive oxygen species. Additionally, Fe-N-rGO with 1 wt % can be uniformly coated onto arbitrary substrates, well-maintaining the strong antiviral performance.

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http://dx.doi.org/10.1021/acsami.5c05783DOI Listing

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Article Synopsis
  • The development of effective catalysts for the Oxygen Evolution Reaction (OER) and Oxygen Reduction Reaction (ORR) is essential for improving the electrolytic water cycle.
  • Researchers explored a new single-atom catalyst using carbon combined with transition metals anchored by nitrogen, revealing that CuN-C exhibited very low overpotentials and outperformed noble-metal catalysts.
  • The study analyzed catalyst activity through volcano plots and methods like d-band center analysis, indicating that optimal d-band centers improve catalytic performance by ensuring the right balance of adsorption strength.
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