Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 31, Issue 24, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202101195
Keywords
antivirals; COVID-19; hydrophobic graphene; laser-induced graphene; mild conditions
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Funding
- Young Scientists Fund of the National Natural Science Foundation of China [21905240]
- State Key Laboratory of Marine Pollution Seed Collaborative Research Fund [SKLMP/SCRF/0021]
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The prevalence of COVID-19 has brought many challenges globally, and while vaccines show potential in controlling the spread, developing surfaces that can effectively reduce virus transmission and infectivity is also crucial. Research has shown that laser-induced graphene (LIG) has the capacity to effectively inhibit the spread of coronaviruses, with advantages in stability and energy conservation.
The prevalence of COVID-19 has caused global dysfunction in terms of public health, sustainability, and socio-economy. While vaccination shows potential in containing the spread, the development of surfaces that effectively reduces virus transmission and infectivity is also imperative, especially amid the early stage of the pandemic. However, most virucidal surfaces are operated under harsh conditions, making them impractical or potentially unsafe for long-term use. Here, it is reported that laser-induced graphene (LIG) without any metal additives shows marvelous antiviral capacities for coronavirus. Under low solar irradiation, the virucidal efficacy of the hydrophobic LIG (HLIG) against HCoV-OC43 and HCoV-229E can achieve 97.5% and 95%, respectively. The photothermal effect and the hydrophobicity of the HLIG synergistically contribute to the superior inactivation capacity. The stable antiviral performance of HLIG enables its multiple uses, showing advantages in energy saving and environmental protection. This work discloses a potential method for antiviral applications and has implications for the future development of antiviral materials.
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