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Papers
61,005 resultsShowing papers similar to The Effect of Microparticles on the Storage Modulus and Durability Behavior of Magnetorheological Elastomer
ClearShear band formation in magnetorheological elastomer under stress relaxation
This materials science study examined how magnetorheological elastomers — rubber-like materials that change stiffness in magnetic fields — behave under stress at the microscale. This research is unrelated to microplastic environmental contamination.
Microstructural behavior of magnetorheological elastomer undergoing durability evaluation by stress relaxation
This materials engineering study examined the stress relaxation behavior of magnetorheological elastomers—rubber-like materials embedded with magnetic particles—under long-term loading. The findings help predict how these specialty materials degrade over time in vibration-damping applications in vehicles and industrial machinery.
Effect of Microplastic Particles on the Rheological Properties of Human Saliva and Mucus
Researchers investigated how polystyrene and polyethylene microparticles affect the physical properties of human saliva and mucus. The study used artificial mucus and saliva samples with an oscillatory rheometer to measure changes in viscosity and elasticity at both healthy and elevated body temperatures. The findings suggest that inhaled or ingested microplastic particles may alter the protective barrier functions of mucus and saliva in the mouth and respiratory system.
Variation of Young's modulus suggested the main active sites for four different aging plastics at an early age time
Researchers measured changes in Young's modulus — a measure of material stiffness — in microplastic particles of four different polymer types following environmental degradation, finding that mechanical properties changed in distinct patterns depending on the polymer's crystalline structure and degradation pathway. The results provide material-specific data on how weathering alters the physical behavior of microplastics in the environment.
Effect of Microplastics Particles on the Rheological Properties of Human Saliva and Mucus
Researchers investigated how polystyrene micro- and nanoparticles affect the rheological properties of human saliva and mucus, testing particles relevant to inhalation exposure from indoor synthetic textiles and outdoor aerosols. The study found that microplastic particles altered the viscoelastic properties of mucus, which could affect mucociliary clearance and respiratory defense.
The Immunotoxic Effects of Environmentally Relevant Micro- and Nanoplastics
Researchers characterized the immunotoxic effects of over 20 types of micro- and nanoplastic particles on macrophages and dendritic cells, finding that physicochemical properties such as size, shape, polymer type, and surface oxidation strongly influence immune cell responses.
Effects of microplastics on the rheological properties of sediment slurries in aquatic environments
Microplastics altered the rheological properties of cohesive sediment slurries in aquatic environments, reducing viscosity at low concentrations and modifying flow dynamics, with implications for understanding how microplastic-laden sediment slurries transport and deposit these contaminants.
Influence of the polymer type on the impact of microplastic particles
Researchers compared cellular toxicity of microparticles made from polystyrene, polyethylene, PVC, PLA, and cellulose acetate in murine macrophages and epithelial cells, finding that polymer type influences cytotoxicity and uptake behavior. All particle types were ingested by macrophages, but their surface chemistry and charge affected the degree of cellular damage.
Impacts of microplastic concentrations and sizes on the rheology properties of lake sediments
Researchers studied how microplastic concentration and size affect the rheological properties of lake sediments, finding that 0.5-2 percent microplastic content decreased sediment viscosity and yield stress by up to 38 percent compared to controls. Smaller particles had greater effects on sediment flow behavior than larger ones.
Relationship Between Particle Properties and Immunotoxicological Effects of Environmentally-Sourced Microplastics
Researchers exposed human macrophages to environmentally collected and weathered microplastic particles from the North Pacific Gyre and French coast to assess immunotoxicity, finding that particle physicochemical properties including polymer type and surface chemistry correlated with different cytokine response profiles. Multi-dimensional analysis revealed that surface area and hydrophobicity were key predictors of macrophage immune activation.
Health impacts of micro- and nanoplastics: key influencing factors, limitations, and future perspectives
This review systematically analyzed how the physicochemical properties of micro- and nanoplastics — including size, shape, surface charge, and polymer type — determine their toxicological impacts across biological systems. The authors argue that property-based frameworks are essential for predicting MNP health risks and designing relevant research.
Impacts of microplastic contamination on the rheology properties of sediments in a eutrophic shallow lake
Researchers assessed the impact of microplastic contamination on the rheological properties of sediments in a eutrophic shallow lake, examining how plastic particles alter erosion resistance and sediment mechanics. Results indicated that microplastic accumulation measurably changes the physical behavior of lake sediments.
Micro- and nanoplastics: origin, sources of intake and impact on human health (literature review)
This literature review synthesizes mechanisms by which micro- and nanoplastics interact with living organisms, examining their physicochemical properties, routes of human exposure, and documented health effects across multiple organ systems.
Properties and Related Effects of Microplastics in the Aquatic Environment: From the Organismic to Cellular Level
This review covers the properties of microplastics in aquatic environments — including polymer chemistry, particle size, shape, and surface charge — and how these characteristics determine their biological effects from the cellular to organismal level in aquatic organisms.
Influence of the polymer type on the impact of microplastic particles
Researchers compared the cellular effects of polystyrene, polyethylene, PVC, and PLA microparticles on murine macrophages and epithelial cells, assessing uptake and cytotoxicity. All polymer types were ingested by macrophages, but the degree of cytotoxicity varied by polymer composition.
Microplastics, physical-chemical and biological principles of this environmental liability
This review covers the physical, chemical, and biological principles underlying microplastic behavior in the environment, including how particles fragment, sorb contaminants, and interact with organisms. The authors frame microplastics as a complex environmental stressor whose impacts depend on particle size, shape, polymer type, and the specific biological system exposed.
The Effect of Elastomer Content and Annealing on the Physical Properties of Upcycled Polyethylene Terephthalate-Maleated Styrene Ethylene Butylene Styrene Blends for Additive Manufacturing
This paper is not relevant to microplastics research; it investigates the mechanical and rheological properties of recycled PET blended with a thermoplastic elastomer for use in 3D printing filaments, focusing on material performance rather than microplastic environmental impacts.
Micro and nano-plastics, a threat to human health?
This review examines the threat micro- and nanoplastics pose to human health, discussing how these persistent particles accumulate in organs including lungs, the gastrointestinal system, and blood, and how their chemical composition and size influence toxicity.
Nanostructured lignin carriers for efficient flame retardant delivery in natural rubber composites
Not relevant to microplastics — this paper describes using bio-based lignin nanocontainers to deliver a flame retardant in natural rubber composites, improving fire resistance and mechanical properties; it does not address microplastic pollution, environmental contamination, or health effects.
Microplastics in the environment: The role of polymer science
This paper highlights why understanding polymer science is essential for addressing the microplastics problem. Researchers argue that microplastics behave differently from other microparticles because of their unique polymer-specific interactions with the environment and living organisms. The study calls for interdisciplinary collaboration between polymer scientists and environmental researchers to develop better identification methods, risk assessments, and remediation strategies.
Development of a Resilience Parameter for 3D-Printable Shape Memory Polymer Blends
Not relevant to microplastics — this paper develops a resilience parameter metric for evaluating shape memory polymer blends (PLA/SEBS, ABS/SEBS, PLA/TPU) fabricated via fused filament 3D printing for engineering applications.
Micro- and nanoplastics differ in particle-mucus interactions: The sight on rheological properties, barrier dysfunction and microbiota dysbiosis
Researchers compared how micro- and nanoplastics interact with the protective mucus layer lining the intestines and found that nanoplastics were wrapped in mucus while microplastics were not. Both particle sizes disrupted the gut barrier and altered the gut microbiome in mice at environmentally relevant doses, but through different mechanisms. The study suggests that the mucus layer, a key line of defense in the gut, responds differently depending on plastic particle size, with implications for understanding how ingested plastics may affect digestive health.
Variety of scaling behaviors in nanocrystalline plasticity
This is a materials science study examining the variety of scaling behaviors observed in nanocrystalline plasticity, exploring how grain size affects deformation mechanisms in metals. It is not related to environmental microplastics.
Influence of the polymer type of a microplastic challenge on the reaction of murine cells
Researchers compared how mouse cells respond to microplastic particles made from different polymer types, including polystyrene, polyethylene, PVC, and plant-based alternatives. They found that immune cells could take up all particle types, while other cell types were selective based on the particles' surface charge. Importantly, none of the tested microplastic types showed significant short-term toxic effects on the cells, though longer-term impacts remain unclear.