Articles tagged with Synthetic Polymers
California's decision to add microplastics to its Candidate Chemicals List marks a significant step towards regulating plastic pollution. The move is part of the state's decade-long regulatory approach, which has also included banning plastic microbeads in cosmetics.
Researchers at MIT created a new computing platform that mimics the firing behavior of a neuron, enabling brain-inspired computing with low power and high efficiency. The device uses reconfigurable motion to remember and process information, similar to how neurons behave in the brain.
Virginia Tech researchers have developed degradable polymers with a new molecular architecture that combines strength, toughness, flexibility, and oxygen-blocking properties. The findings have implications for food packaging, which could lead to more sustainable and durable materials.
Scientists at Virginia Tech have designed two types of degradable adhesives: one made from lipoic acid that outperforms duct tape, and another with a bottlebrush polymer that is four times stronger. Both can be broken down into their original components within minutes, making them ideal for recyclable applications.
A research team from Chiba University developed a flexible bio-based plastic that can be chemically converted into fertilizer after use, improving environmental sustainability. The plasticizer improves the flexibility of the plastic, increasing its potential for future applications.
A study from the University of California, Davis, and Argentina's National Research Council found that 71% of southern giant petrel chicks sampled had plastic in their bodies. Even small amounts of plastic ingestion were associated with changes in nutrition, metabolism, and immune response in young chicks.
Researchers developed cellulose metafibers with a maximum tensile strength of 3.29 GPa and a toughness of 349.5 MJ m–3, comparable to top-tier synthetic fibers and natural spider silk. The biodegradable fibers were used in lawn and vegetation maintenance, showing wear resistance and environmental benefits.
A new study estimates that decommissioning subsea oil and gas pipelines could release 4.5 to 500 tonnes of microplastics into the North Sea each year. The research highlights the potential environmental risks of legacy plastics and recommends integrating environmental consequences into decommissioning decision-making.
Researchers at Virginia Tech develop process to strip chlorine from PVC and produce synthetic lubricant-based oils. The new method converts discarded PVC into a key lubricant ingredient, offering a potential solution to two environmental challenges: recycling difficult-to-process plastics and producing valuable industrial materials.
Researchers report reductions of up to 75.8% in perfluorinated compounds after plasmapheresis treatment, while microplastics decrease in four out of four patients. The exact mechanism behind this effect is still unclear and requires further investigation.
Researchers at Colorado State University have developed a catalytic process to transform carbon dioxide into recyclable, high-performance materials. These new materials can replace today's plastics in many situations and feature sought-after characteristics such as high mechanical strength and flexibility. The foundational building blo...
Researchers at the University of Minnesota developed a new strategy to accelerate the breakdown of compostable PLA plastics under everyday composting conditions. The addition of a trace amount of 2-sulfobenzoic acid cyclic anhydride (SAn) dramatically enhances their hydrolytic degradation, making them more suitable for home composting.
Researchers introduce 'plantymers', plastics that break down naturally in the environment, addressing traditional plastic drawbacks. Plantymers are strong enough to compete with fossil-based plastics, making them suitable for fruit packaging and other applications.
A novel, two-sided dressing made from sustainable polymers has been developed to deliver antibiotics directly to wounds during critical early stages of infection. The dressing reduces bacterial growth and biofilm formation by over 90%, promoting healing and reducing the risk of treatment failure.
Researchers at Tokyo Metropolitan University developed biobased poly(ester amide)s with superior mechanical properties, outperforming conventional polymers like polyethylene and polypropylene. These materials are derived from non-edible renewable resources and can be easily chemically recycled.
Researchers at UC Davis aim to understand how airborne nanoplastics affect human health, focusing on neurotoxicity and pollutant-adsorbed nanoplastics. They'll create a standardized method for measuring and describing the health risks of these tiny plastics.
A modular system designed by Worcester Polytechnic Institute Assistant Professor Jiawei Yang enables the creation of customized hydrogel implants with tailored stiffness and functionality. The system addresses critical challenges in implant design, including adhesion and immune rejection, to improve long-term performance.
Scientists at The University of Osaka have created a multipath synergistic strategy to toughen elastomers by sequentially activating three energy dissipation pathways. This approach enhances the material's toughness while maintaining its elasticity, making it suitable for various applications such as tires, gloves, and adhesives.
A study from the University of Oklahoma reveals that microplastic exposure can exacerbate fatty liver disease, especially in high-fat dietary conditions. Researchers used advanced mapping technology to pinpoint specific regions of liver damage caused by polyethylene exposure.
Natural waters slow down nature's cleanup process by shielding plastics from sunlight and microbes, according to a new study. The chemical makeup of natural waters, especially combinations of salt and organic matter, significantly delays the breakdown of polystyrene plastic.
A University of Cincinnati research team will examine how microplastics and nanoplastics accumulate in the body and affect cardiovascular health, with a focus on potential toxicity and worsening outcomes after a heart attack. The five-year study aims to advance understanding of microplastic impact on heart diseases.
Researchers have developed a chemical upcycling method that converts existing plastics into new materials with rapidly degrading properties. This process has the potential to tackle global plastic pollution issues by replacing non-biodegradable plastics.
A global study of marine litter has identified food and beverage plastics as the leading contributors to ocean pollution, with plastic packaging, caps, and bottles dominating shoreline debris worldwide. The research highlights the urgent need for reduced plastic production and more efficient waste management practices.
A study finds microplastics in the human brain associated with increased risk of stroke and dementia. Apheresis, a medical treatment, is proposed as a potential removal method for microplastics from the body.
Researchers investigate whether micro- and nanoplastics contribute to liver disease through oxidative stress, fibrogenesis, and inflammation. They emphasize the need for increased research into plastic-induced liver injury and its potential impact on human health.
A study by Brazilian researchers found that moringa oleifera's saline extract can effectively remove microplastics from water, similar to aluminum sulfate. The treatment method uses in-line filtration and coagulation to destabilize particles and filter out pollutants.
Soft robots could work as medical implants, deliver drugs inside the body, and explore dangerous environments. The researchers designed a reconfigurable robot that can move repeatedly without degradation, using targeted heating to control motion and embedded temperature sensors for closed-loop control.
A new study by the University at Buffalo reveals that unequal access to recycling facilities plays a key role in shaping plastic waste management practices in the US. Wealthier and more college-educated communities are more likely to have convenient access to large-scale industrial recycling facilities, making recycling easier and more...
Researchers at the University of Bath have developed a breakthrough method for chemically recycling acrylic plastics using lower temperatures and sustainable solvents. The new process delivers over 95% conversion of the plastic and yields high-quality monomers, offering a clear pathway toward genuine circularity in acrylic materials.
Professor Timo Betz's project aims to develop synthetic materials that mimic key behaviors of living cells, including self-organization and physical adaptation. By studying the mechanical properties of living cells, he will recreate part of the cell's interior in a synthetic way.
Levels of toxic PFAS in New Jersey's public water systems dropped by as much as 55% after the state set limits. The study analyzed 12,000 monitoring results and found significant declines in PFOA and PFNA levels, with a notable drop in contaminated wells before regulations were implemented.
Researchers discovered 30 bacterial species that break down biodegradable plastic, revealing speed and factors influencing degradation. The study highlights the importance of understanding microbial communities and plastic chemistry in plastic biodegradation.
Researchers at the University of Jyväskylä have developed new synthetic molecules that capture sulfate with exceptional efficiency, rivaling natural protein binding sites. The unique architecture of the molecules, known as
Researchers at Texas A&M University and DEVCOM Army Research Laboratory developed a hybrid foam with a 3D-printed plastic skeleton, offering tunable, lightweight and ultra-durable properties. The composite combines ordinary foam with plastic struts, allowing it to absorb more energy and withstand greater forces.
Scientists have engineered a microbial assembly line that converts plastic waste into a variety of useful products, including biopolymers, enzymes, and electricity. The breakthrough uses pyruvate as a universal currency to generate a wide range of outputs.
Researchers from São Paulo State University detected plastic rocks on Trindade Island, Brazil's easternmost territory, where green turtle nests are conducive to plastic accumulation and burial. The study highlights the need for public policies to manage plastic waste and coordinated actions to clean up beaches.
Researchers at Worcester Polytechnic Institute have developed a new technology for plastic recycling that uses aqueous chemi-mechanical recycling to blend, decolorize, and purify mixed polyolefins. This approach reduces energy consumption and eliminates toxic chemicals compared to existing methods.
Researchers have found that nanoplastics interact with environmental microbes, strengthening bacteria and antimicrobial-resistant pathogens. This can lead to challenges for water treatment and distribution systems. More research is needed to understand the molecular mechanisms underlying these interactions.
Researchers at the University of Rochester have developed a new way to harness the properties of tungsten carbide as a catalyst for producing valuable chemicals and fuels. The method, which involves carefully manipulating tungsten carbide particles at the nanoscale level, has shown promising results in reducing costs and increasing eff...
A recent study from the University at Buffalo has found that cigarette filters release up to two dozen microfibers upon first contact with water, posing a significant threat to wildlife and human health. The researchers estimated that over 71 million to 1.4 billion cigarette butt microfibers are released into New York waters every day.
Researchers at Ben-Gurion University have developed a new type of plastic-like material that can be activated with light or gentle heat. The materials, known as latent monomers, remain inactive for weeks before solidifying into a durable plastic-like substance. This switchable system could give rise to hundreds of new plastic-like mate...
Researchers at RIKEN have developed a new plant-based plastic made from cellulose that rapidly degrades in natural environments, eliminating microplastic waste. The biodegradable plastic can be adjusted in strength and flexibility with added choline chloride, providing a practical solution to ocean pollution.
A mouse study by University of California, Riverside scientists suggests microplastic exposure may accelerate the development of atherosclerosis in males. The study found microplastics dramatically worsened plaque buildup in male mice, but not females.
Bamboo is being explored as a promising material for reducing plastic waste due to its fast growth rate, renewable nature, and extensive distribution. Despite challenges, bamboo-based products have improved performance profiles and are gaining popularity worldwide.
Researchers developed a nanoengineered polymer coating that reflects sunlight and radiates heat, capturing atmospheric water vapour to create a sustainable source of fresh water. The technology can be integrated into paint-like materials for large-scale use, complementing existing systems and addressing global challenges.
A University of Delaware-led research team has developed a new type of catalyst that enhances conversion of plastic waste into liquid fuels more quickly and with fewer undesired byproducts. The catalyst achieves reaction rates nearly two times faster than those previously reported, producing targeted production of liquid fuels while mi...
Brazilian researchers analyzed over 60 scientific articles on microplastics and their impact on bone health. They found that the materials can impair bone marrow stem cells, accelerate cell aging, and promote inflammation, leading to potential bone weakening and fractures.
Researchers have found that plastic nanoparticles can enter crops during growth, accumulating in edible parts and potentially affecting human health. The study used radishes to demonstrate the uptake of nanoplastics by plants, with nearly 5% of particles retained by the root system.
Professor Paul Motzki is developing ultra-flat, compact, and lightweight cooling units using shape memory alloys and dielectric elastomer actuators. He aims to create climate-friendly and energy-efficient alternative to conventional systems.
A recent study reveals that discarded plastic materials are a significant hazard to young birds, causing entanglements that lead to deaths. The study found that soft plastics and synthetic ropes were the most prevalent materials in bird nests, with baler twine accounting for 63% of entanglements.
A new study by Colorado State University outlines a path to creating advanced, recyclable plastics using natural poly(3-hydroxybutyrate) (P3HB). The breakthrough method involves stereodivergent catalysis, which enables the production of enantiopure PHAs with improved properties for various applications.
Researchers at The University of Tokyo have developed a 'molecular flask' that modulates chemical reactions, allowing for the creation of specialized polymers in extremely small spaces. This breakthrough technology enables the production of complex materials with various applications, including optoelectronics and medicine.
Materials researchers at Harvard have created a way to produce natural rubber that retains its stretchiness and durability while improving its ability to resist cracking. The new material is four times better at resisting slow crack growth during repeated stretching and 10 times tougher overall.
A recent study found that fully protected marine areas in Brazil are contaminated by microplastics, with an average concentration of 0.42 particles per gram of wet tissue. The contamination was detected in all ten integral protection areas studied, with the highest levels found in the Alcatrazes Archipelago Wildlife Refuge.
Research highlights potential link between microplastics in ultra-processed foods and brain health, with possible connections to depression and dementia. The studies propose a novel hypothesis connecting ultra-processed food consumption, microplastic exposure, and mental health outcomes.
Researchers at Texas A&M University have developed a dynamic material that can self-heal after puncturing, changing from solid to liquid and back, allowing it to absorb kinetic energy and leave tiny holes. The polymer's unique properties make it suitable for protecting space vehicles and military equipment.
Researchers at MIT have developed a new method to fabricate stretchable ceramics, glass, and metals using a double-network design. This material can stretch over four times its size without breaking, making it suitable for tear-resistant textiles and flexible semiconductors.
Researchers highlight biodegradable plastics as a promising solution to single-use plastic waste, with the packaging segment accounting for half of single-use plastic production. The market is expected to reach $105 billion by 2024, driven by consumer awareness and corporate response.
USC researchers developed a biocompatible material by adding calcium carbonate to poly (1,8-octanediol-co-citrate), an FDA-approved biodegradable material. The resulting material, POC-CC, is a safer alternative to traditional plastics and degrades in marine environments while maintaining strength.
Researchers at UC San Diego developed a novel method to produce biobased aromatic diisocyanates from D-galactose, avoiding toxic chemicals and high-pressure reactions. The resulting thermoplastic polyurethane exhibits excellent material properties equivalent to petroleum-based alternatives.