Comparative evaluation of filtration and imaging properties of analytical filters for microplastic capture and analysis

Carter, Jared; Horan, Teagan; Miller, John J.; Madejski, Gregory R.; Butler, Erin E.; Amato, Corinne; Roussie, James A.

doi:10.1016/j.chemosphere.2023.138811

Cited by 7 publications

(2 citation statements)

References 20 publications

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“…Some filters can also be cost prohibitive (i.e., aluminum oxide filters). Silicon nanomembranes avoid many of the disadvantages of the other filter types as they have smaller and consistent pore sizes (increased porosity), a wide range of pore selection and are inert and inorganic; however, they can be cost prohibitive and fragile (Carter et al, 2023;Madejski et al, 2020).…”

Section: Current Challengesmentioning

confidence: 99%

Understanding Human Health Impacts Following Microplastic Exposure Necessitates Standardized Protocols

Morgan,

Romanick,

DeLouise

et al. 2024

Current Protocols

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Microplastics (MPs; 1 µm to 5 mm) are a persistent and pervasive environmental pollutant of emergent and increasing concern. Human exposure to MPs through food, water, and air has been documented and thus motivates the need for a better understanding of the biological implications of MP exposure. These impacts are dependent on the properties of MPs, including size, morphology, and chemistry, as well as the dose and route of exposure. This overview offers a perspective on the current methods used to assess the bioactivity of MPs. First, we discuss methods associated with MP bioactivity research with an emphasis on the variety of assays, exposure conditions, and reference MP particles that have been used. Next, we review the challenges presented by common instrumentation and laboratory materials, the lack of standardized reference materials, and the limited understanding of MP dosimetry. Finally, we propose solutions that can help increase the applicability and impact of future studies while reducing redundancy in the field. The excellent protocols published in this issue are intended to contribute toward standardizing the field so that the MP knowledge base grows from a reliable foundation. © 2024 Wiley Periodicals LLC.

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Section: Current Challengesmentioning

confidence: 99%

Understanding Human Health Impacts Following Microplastic Exposure Necessitates Standardized Protocols

Morgan,

Romanick,

DeLouise

et al. 2024

Current Protocols

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“…Membrane materials are crucial to nano-/microplastics’ separating properties and scale application. Generally, polymeric membranes and ceramic membranes are widely used in the removal of nano-/microplastics from water [ 19 , 20 , 21 , 22 ]. In a study conducted by Xu et al [ 23 ], both polyvinylidene fluoride (PVDF) and polyethersulfone (PES) membranes were utilized for the extraction of microplastics from lake water, achieving an impressive removal rate of 92%.…”

Section: Introductionmentioning

confidence: 99%

Removal of Plastics from Micron Size to Nanoscale Using Wood Filter

Li,

Liu,

Wang

et al. 2024

Materials

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Plastic pollution, particularly microplastic (MP) and nanoplastic (NP) pollution, has become a significant concern. This study explores the use of porous wood for filtration to remove MPs and NPs and investigates their removal mechanisms. Undecorated fir wood with a thickness of 4 mm achieves a 91% removal rate for model polystyrene (PS) MPs (2.6 μm) at a water flux of 198 L/m2h. However, its separation performance for NPs (255.8 and 50.9 nm) is poor. It also shows that fir wood (coniferous wood) has a higher PS removal rate than poplar wood (hard wood). With poly dimethyl diallyl ammonium chloride (PDDA) modification, both MPs and NPs are effectively removed, with NPs’ removal rate increasing from <10% to 90% for PDDA/wood. Characterization results reveal that size-exclusive interception dominates for micron-sized particles, and electrostatic interaction is crucial for nanosized particles. Additionally, intercepted NPs have been used as a strong binder for hot-pressed wood to remarkably enhance the mechanical properties of wood, suggesting a novel recycle utilization of discarded wood filters. Overall, this renewable wood material offers a simple solution for tackling MP/NP pollution.

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Informing methods for detecting and quantifying microplastics through the lens of a global intercalibration exercise: An editorial overview of the special issue and beyond

Wong,

Coffin,

Rochman

et al. 2024

Chemosphere

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Comparative evaluation of filtration and imaging properties of analytical filters for microplastic capture and analysis

Cited by 7 publications

References 20 publications

Understanding Human Health Impacts Following Microplastic Exposure Necessitates Standardized Protocols

Understanding Human Health Impacts Following Microplastic Exposure Necessitates Standardized Protocols

Removal of Plastics from Micron Size to Nanoscale Using Wood Filter

Informing methods for detecting and quantifying microplastics through the lens of a global intercalibration exercise: An editorial overview of the special issue and beyond

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