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Advances in electrospun nanofiber-based personal protective equipment for active filtration
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Most face masks today are made from plastic materials that don't break down, shedding microplastics into the environment long after you throw them away. This review rounds up research on a promising alternative: masks made from biodegradable nanofibers (created through a technique called electrospinning) that can filter out germs and pollutants just as well, while some versions even add natural antibacterial ingredients like essential oils or metal particles for extra protection. The takeaway: eco-friendlier masks that protect your health without leaving lasting plastic pollution behind may be on the horizon, though most of this work is still in the research stage rather than on store shelves.
The rapid increase in air pollution and airborne pathogen transmission has driven the demand for advanced personal protective equipment (PPE) that combines high filtration efficiency whit environmental sustainability. Conventional facemasks are primarily composed of non-biodegradable synthetic polymers, resulting in microplastics pollution and long-term ecological damage. Electrospinning offers a promising approach for producing nanofiber membranes with ultrafine diameters, high porosity, and tunable surface properties, enabling efficient particle capture and antimicrobial functionalities. Biodegradable polymers present sustainable options, as they can form electrospun membranes with high porosity and interconnected structures that effectively capture airborne particles while reducing environmental impact. These materials can also be enhanced with bioactive agents, including metal nanoparticles (NPs), metal-organic frameworks, and essential oils to provide antibacterial properties. In addition, naturally derived fibers are explored for use in the outer and inner layers of facemasks, offering breathability, comfort, and biodegradability. Together, these materials pave the way toward fully bio-based facemask architectures that combine high filtration efficiency, bioactivity, and sustainability. This review explores the potential of biopolymer-based electrospun nanofiber membranes and natural fibers for use in biodegradable facemasks, with a focus on their filtration efficiency, antimicrobial functionality, and overall suitability as a sustainable solution for future PPE applications.
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This review examines the development of biodegradable electrospun nanofiber membranes as alternatives to conventional plastic face masks. Researchers summarize progress on materials including silk fibroin, polylactic acid, chitosan, cellulose, and zein, which can achieve strong filtration performance. The study highlights that degradable nanofiber filters offer a promising solution to reduce the environmental burden of plastic pollution from disposable face masks.
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Researchers made disposable facemask material from biodegradable plant-based plastics (PLA and related polymers) using a specialized spinning process, instead of conventional plastics. In lab tests, the nanofiber material filtered smoke particles effectively, and its breakdown was tested under composting, water exposure, and UV light to check how fast it degrades.
Upscaling of Electrospinning Technology and the Application of Functionalized PVDF-HFP@TiO2 Electrospun Nanofibers for the Rapid Photocatalytic Deactivation of Bacteria on Advanced Face Masks
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Researchers developed electrospun nanofiber membranes made from PVDF-HFP polymer combined with titanium dioxide for use in advanced face masks with photocatalytic antibacterial properties. The study demonstrated that these functionalized nanofiber filters effectively deactivated bacteria while maintaining high filtration performance, offering a potential alternative to conventional mask materials.
Enhanced Filtration Efficiency of Natural Materials with the Addition of Electrospun Poly(vinylidene fluoride-co-hexafluoropropylene) Fibres
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Researchers developed enhanced air filtration materials by combining natural fibers with electrospun PVDF-HFP nanofibers, achieving improved particulate filtration efficiency while reducing reliance on single-use plastic masks that contribute to environmental pollution.
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