Superhydrophobic, photo-sterilize, and reusable mask based on graphene nanosheet-embedded carbon (GNEC) film

Lin, Zezhou; Wang, Zheng; Zhang, Xi; Diao, Dongfeng

doi:10.1007/s12274-020-3158-1

Cited by 78 publications

(67 citation statements)

References 39 publications

(37 reference statements)

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“…S14 ). Such temperature is much lower than the recently reported bioprotective materials (60–110 °C) for microbial inactivation through only photothermal effect [ [47] , [48] , [49] ], nevertheless, it is sufficient to serve as an adjuvant role for the pathogen inhibition by accelerating the dehydration of pathogenic droplets and aerosols, without causing discomfort in contact with mouth and skin.…”

Section: Resultsmentioning

confidence: 83%

AIEgen-loaded nanofibrous membrane as photodynamic/photothermal antimicrobial surface for sunlight-triggered bioprotection

Wen

et al. 2021

Biomaterials

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The outbreak of infectious diseases such as COVID-19 causes an urgent need for abundant personal protective equipment (PPE) which leads to a huge shortage of raw materials. Additionally, the inappropriate disposal and sterilization of PPE may result in a high risk of cross-contamination. Therefore, the exploration of antimicrobial materials possessing both microbe interception and self-decontamination effects to develop reusable and easy-to-sterilize PPE is of great importance. Herein, an aggregation-induced emission (AIE)-active luminogen-loaded nanofibrous membrane (TTVB@NM) sharing sunlight-triggered photodynamic/photothermal anti-pathogen functions are prepared using the electrospinning technique. Thanks to its porous nanostructure, TTVB@NM shows excellent interception effects toward ultrafine particles and pathogenic aerosols. Benefiting from the superior photophysical properties of the AIE-active dopants, TTVB@NM exhibits integrated properties of wide absorption in visible light range, efficient ROS generation, and moderate photothermal conversion performance. A series of antimicrobial evaluations reveal that TTVB@NM could effectively inactivate pathogenic aerosols containing bacteria (inhibition rate: >99%), fungi (~88%), and viruses (>99%) within only 10 min sunlight irradiation. This study represents a new strategy to construct reusable and easy-to-sterilize hybrid materials for potential bioprotective applications.

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Section: Resultsmentioning

confidence: 83%

AIEgen-loaded nanofibrous membrane as photodynamic/photothermal antimicrobial surface for sunlight-triggered bioprotection

Wen

et al. 2021

Biomaterials

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“…In another work, a superhydrophobic, photo-sterilize, and reusable mask based on a graphene nanosheet-embedded carbon (GNEC) film exhibits high hydrophobicity (water contact angle: 157.9°) and filtration efficiency [with 100% bacterial filtration efficiency (BFE)]. 123 In addition, the GNEC mask presents a photo-sterilize ability to being heated up to 110 °C quickly under the solar illumination, which provides promising potential for further investigation.…”

Section: Antiviral Coatings Against Sars-cov-2mentioning

confidence: 99%

Fight against COVID-19: The case of antiviral surfaces

et al. 2021

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The COVID-19 pandemic is the largest global public health outbreak in the 21st century so far. Based on World Health Organization reports, the main source of SARS-CoV-2 infection is transmission of droplets released when an infected person coughs, sneezes, or exhales. Viral particles can remain in the air and on the surfaces for a long time. These droplets are too heavy to float in air and rapidly fall down onto the surfaces. To minimize the risk of the infection, entire surrounding environment should be disinfected or neutralized regularly. Development of the antiviral coating for the surface of objects that are frequently used by the public could be a practical route to prevent the spread of the viral particles and inactivation of the transmission of the viruses. In this short review, the design of the antiviral coating to combat the spread of different viruses has been discussed and the technological attempts for minimizing the coronavirus outbreak have been highlighted.

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“…Though previous studies showed that the graphene materials exhibited outstanding antibacterial activity under sunlight and proposed that the high temperature (e.g., 110 °C) resulted from photothermal effect might inactivate virus, there was no direct evidence on how effective the antiviral efficacy could be achieved. [ 27–29 ] In addition, such a high temperature could impractical in real scenario as the solar irradiance is often lower. Here we report that laser‐induced graphene (LIG) and its composites [ 30–32 ] show excellent antiviral activity against HCoV‐OC43 and HCoV‐229E, two human coronaviruses serving as surrogates for SARS‐CoV‐2.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient and Rapid Inactivation of Coronavirus on Non‐Metal Hydrophobic Laser‐Induced Graphene in Mild Conditions

Huang

Wang

et al. 2021

Adv Funct Materials

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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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Superhydrophobic, photo-sterilize, and reusable mask based on graphene nanosheet-embedded carbon (GNEC) film

Cited by 78 publications

References 39 publications

AIEgen-loaded nanofibrous membrane as photodynamic/photothermal antimicrobial surface for sunlight-triggered bioprotection

AIEgen-loaded nanofibrous membrane as photodynamic/photothermal antimicrobial surface for sunlight-triggered bioprotection

Fight against COVID-19: The case of antiviral surfaces

Highly Efficient and Rapid Inactivation of Coronavirus on Non‐Metal Hydrophobic Laser‐Induced Graphene in Mild Conditions

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