Oxidative stress response in pulmonary cells exposed to different fractions of PM2.5-0.3 from urban, traffic and industrial sites

Moufarrej, Lamia; Verdin, Anthony; Cazier, Fabrice; Ledoux, Frédéric; Courcot, Dominique

doi:10.1016/j.envres.2022.114572

Cited by 6 publications

(2 citation statements)

References 88 publications

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“…The higher the concentration in the air, the more polluted the air [2]. Due to its small particle size, they can remain suspended in the air for an extended period, forming aerosols that can easily enter the respiratory tract and are more harmful than larger particles [3]. Microorganisms, including viruses and bacteria, can attach to particulate matter, potentially spreading disease [4,5].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Poly(Lactic Acid)@TiO2 Electrospun Membrane Decorated with Metal–Organic Frameworks for Efficient Air Filtration and Bacteriostasis

Lin,

Shen,

Qian

et al. 2024

Polymers

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The development of high-performance filtration materials is essential for the effective removal of airborne particles, and metal–organic frameworks (MOFs) anchored to organic polymer matrices are considered to be one of the most promising porous adsorbents for air pollutants. Nowadays, most air filters are generally based on synthetic fiber polymers derived from petroleum residues and have limited functionality, so the use of MOFs in combination with nanofiber air filters has received a lot of attention. Here, a conjugated electrostatic spinning method is demonstrated for the one-step preparation of poly(lactic acid) (PLA) nanofibrous membranes with a bimodal diameter distribution and the anchoring of Zeolitic Imidazolate Framework-8 (ZIF-8) by the introduction of TiO2 and in situ generation to construct favorable multiscale fibers and rough structures. The prepared PLA/TZ maintained a good PM2.5 capture efficiency of 99.97%, a filtration efficiency of 96.43% for PM0.3, and a pressure drop of 96.0 Pa, with the highest quality factor being 0.08449 Pa−1. Additionally, ZIF-8 was uniformly generated on the surface of PLA and TiO2 nanofibers, obtaining a roughened structure and a larger specific surface area. An enhanced filtration retention effect and electrostatic interactions, as well as active free radicals, can be generated for the deep inactivation of bacteria. Compared with the unmodified membrane, PLA/TZ prepared antibacterial characteristics induced by photocatalysis and Zn2+ release, with excellent bactericidal effects against S. aureus and E. coli. Overall, this work may provide a promising approach for the development of efficient biomass-based filtration materials with antimicrobial properties.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Poly(Lactic Acid)@TiO2 Electrospun Membrane Decorated with Metal–Organic Frameworks for Efficient Air Filtration and Bacteriostasis

Lin,

Shen,

Qian

et al. 2024

Polymers

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“…PM may contain BC, which has been used as an indicator of diesel combustion, as well as trace metals, quinones, and other compounds [15,16]. Roadway PM may generate reactive oxygen species (ROS), leading to oxidative stress [17]. The capacity of PM to generate ROS is referred to as oxidative potential (OP) and is influenced by factors such as PM size and chemical composition [18].…”

Section: Introductionmentioning

confidence: 99%

Concentrations and Oxidative Potential of PM2.5 and Black Carbon Inhalation Doses at US–Mexico Port of Entry

Zurita,

Quintana,

Toledano-Magaña

et al. 2024

Environments

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Located between Mexico and the US, the San Ysidro/El Chaparral Land Port of Entry (SYPOE) is one of the busiest border crossings in the world. People with activities at the SYPOE are exposed to vehicular pollutants, especially particles with aerodynamic diameters < 2.5 µm (PM2.5) and black carbon (BC), both associated with adverse health effects. This study presents the first PM2.5 and BC concentration measurements collected on the Mexican side of the SYPOE. The oxidative potential (OP) for PM2.5 and the inhalation dose of BC for people at the border were also evaluated. Autumn and winter showed the highest PM2.5 concentrations (at 28.7 μg m−3 and 28.2 μg m−3, respectively). BC concentration peaked in the winter of 2017 (at 5.7 ± 6 μgm−3), demonstrating an increase during periods with low wind speeds. The highest OPDTT of PM2.5 was reached in winter, with a value of 18.5 pmol min−1 µg−1 (0.6 nmol min−1m−3). The highest average daily inhalation dose for pedestrians was registered in the autumn of 2018 (5.9 μg for a 60-min waiting time), whereas, for workers, it was in the winter of 2017 (19 μg for a 10-h shift on average). Decreasing waiting times for pedestrians and adjusting work schedules for border workers on high concentration days could ameliorate environmental justice.

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A comparative study of the impacts of polycyclic aromatic hydrocarbons in water and soils in Nigeria and Ghana: Towards a framework for public health protection

Akinpelumi,

Kumi,

Onyena

et al. 2023

Journal of Hazardous Materials Advances

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Oxidative stress response in pulmonary cells exposed to different fractions of PM2.5-0.3 from urban, traffic and industrial sites

Cited by 6 publications

References 88 publications

Fabrication of Poly(Lactic Acid)@TiO2 Electrospun Membrane Decorated with Metal–Organic Frameworks for Efficient Air Filtration and Bacteriostasis

Fabrication of Poly(Lactic Acid)@TiO2 Electrospun Membrane Decorated with Metal–Organic Frameworks for Efficient Air Filtration and Bacteriostasis

Concentrations and Oxidative Potential of PM2.5 and Black Carbon Inhalation Doses at US–Mexico Port of Entry

A comparative study of the impacts of polycyclic aromatic hydrocarbons in water and soils in Nigeria and Ghana: Towards a framework for public health protection

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