Articles tagged with Plastics
Researchers analyzed food-grade nylon bags and single-use beverage cups, finding that they release trillions of nanoparticles per liter when exposed to hot water. The average size of these nanoparticles was between 30-80 nanometers, with concentrations seven times higher from nylon bags than from beverage cups.
A new report from Oak Ridge National Laboratory identifies supply chain must-haves for maintaining the pivotal role of hydropower in decarbonizing the nation's grid. The report also highlights advances in safer battery technologies and innovative electron microscopy techniques for imaging lithium in energy storage materials.
A novel method developed by the University of Tsukuba uses drones and machine learning to estimate the amount of plastic litter in rivers. The approach combines high-resolution optical and thermal images, resulting in more accurate estimates than other methods.
Researchers at Northwestern University have developed a stable and selective catalyst for breaking down polyester-based plastics into their component parts. The method uses metal-organic frameworks (MOFs) and requires only three components: plastic, hydrogen, and the catalyst.
Researchers at Cornell University have discovered a way to use light and oxygen to upcycle polystyrene into benzoic acid, a product stocked in chemistry labs and used in various products. The process is mild, climate-friendly, and scalable to commercial waste streams.
A new study published in Ecotoxicology and Environmental Safety reveals that microplastics in the Cauvery River may be causing growth defects in fish, including skeletal deformities and DNA damage. The study found that pollutants from slow-flowing and stagnant sites caused significant harm to zebrafish embryos.
Researchers exposed female mice to DiNP doses simulating occupational and infant exposure, finding inflammation, tissue damage, and altered gut microbiota. The study highlights the need for further research into long-term effects of DiNP on colon health.
Researchers from NTU Singapore have developed a new method using pyrolysis to convert challenging plastic waste into hydrogen and carbon nanotubes. The converted energy could power up to 1,000 five-room apartments for a year.
Researchers found that earthworms prefer soils with bioplastic particles and digest them differently than petroleum-derived plastics. The worms can break down bioplastics like polylactic acid into smaller fragments, which are then excreted slowly.
A recent study reveals alarming levels of plastic pollution in the Arctic Ocean, affecting ecosystems and potentially exacerbating climate change. Plastic debris from rivers, air, and shipping has reached all spheres of the Arctic, including the seafloor, remote beaches, and even ice and snow.
Researchers at Rice University have developed a method to turn treated plastic waste into an effective carbon dioxide sorbent, capable of removing CO2 from flue gas streams. The process involves heating plastic waste in the presence of potassium acetate, producing particles with nanometer-scale pores that trap CO2 molecules.
Researchers used machine learning to predict the most important factors underlying heavy metal pollution remediation in biochar-treated soils. Biochar nitrogen content and application rate were found to be the most crucial features in determining HM immobilization, with soil properties also playing a significant role.
A new study by a University of Georgia researcher finds that plastic bag bans or fees can lead to an increase in the sale of smaller trash bags, potentially offsetting any reduction in plastic waste. Sales of larger trash bags remain relatively unchanged.
A Penn State-led team of researchers developed a flexible polymer with enhanced electromechanical behavior, resulting in a 60% increase in electricity generation efficiency. The material's properties were improved by deliberately introducing chemical impurities through doping and stretching the polymer to align molecular chains.
A review article by MedUni Vienna researchers reveals that micro- and nanoplastics can alter the gut microbiome, leading to metabolic diseases such as diabetes, obesity, and chronic liver disease. The study also highlights the potential carcinogenic effects of nanoparticles in the human body.
Researchers at ETH Zurich have developed a method to break down certain polymers into their basic building blocks, enabling full recycling. The breakthrough involves creating 'radicals' at the end of a polymer chain, triggering depolymerisation and recovering up to 92% of the monomers.
A team of researchers discovered that combining food-grade plant extracts like okra and aloe can effectively remove microplastics from wastewater. The most effective combination was found to be okra paired with fenugreek in ocean water, while okra paired with tamarind worked best for freshwater samples.
Researchers at Northwestern University have developed a new technique to break down polyester plastic waste into its fundamental components. This process, called upcycling, has the potential to remove microplastics from rivers and oceans.
Scientists developed a natural antibacterial texture inspired by insect wings, killing up to 70% of bacteria. The innovation aims to reduce food waste, particularly in meat and dairy exports, and extend the shelf life of packaged food.
A new study suggests that the majority of ocean plastics are on the seafloor or difficult to monitor, with an estimated 540 million metric tons trapped on land. The research estimates that large plastics and microplastics account for only a small percentage of total ocean plastic waste.
Floating microplastics from European rivers are found to accumulate in parts of the Arctic Ocean, Nordic Seas, and Baffin Bay. The study's model predicts that these particles have been circulating throughout the Arctic for at least ten years, highlighting concerns for Arctic ecosystems' health.
A study published in the Journal of the National Cancer Institute has linked exposure to phthalates to higher incidence of specific childhood cancers. Childhood but not gestational phthalate exposure was associated with a 20% higher rate of childhood cancer overall, as well as increased rates of osteosarcoma and lymphoma diagnosis.
Researchers have developed a simple, biodegradable ground cover that keeps soil wet longer and increases crop yields. The wax-coated sand barrier decreased soil moisture loss by up to 50-80% and improved plant growth, including increased fruit and grain production.
Researchers at Flinders University have developed a sustainable way to remove mercury from water using a smart coating made from low-cost chemicals. The coating can also prevent metal corrosion, solvent damage, and acid and water damage of concrete surfaces.
A team of researchers has found that plastic waste-derived porous materials can adsorb CO2 from flue gas, reducing plastic pollution and emissions. The study suggests that these materials could be used in industrial-scale applications, making them a promising alternative to conventional CO2 capture technologies.
Researchers visualize ethylene polymerization on ordered iron carbide surface using in situ technology, revealing molecular insertion mechanism and chain initiation process. The study clarifies the scientific debate regarding chain initiation over Phillips catalysts and provides a method for controlling product chain length distribution.
Researchers at São Paulo State University have developed an edible bioplastic with a tensile strength comparable to petroleum-based plastics. The material is made from gelatin, clay and a nanoemulsion of black pepper essential oil, extending shelf life and preventing microbial contamination.
A team of researchers proposes converting discarded surgical masks into a burnable fuel through pyrolysis, yielding a carbon-rich oil with high heating value. The study suggests this method offers better environmental performance compared to conventional waste management approaches.
A new study reveals that marine organisms attach themselves to plastics and are transported by marine currents, contributing to the introduction of non-native species. The research found diverse marine life attached to plastic debris, including bryozoans, which could become invasive and alter ecosystems.
Scientists captured high-resolution images of an aluminum single-crystal sample transitioning from elastic to plastic state, allowing them to predict material behavior within 5 trillionths of a second. The study could lead to the design of stronger materials for high-temperature nuclear fusion experiments and spacecraft shields.
A recent study found that prenatal exposure to phthalates in maternal and cord blood may affect birth outcomes in infants, with potential estrogenic effects in females and anti-androgenic effects in males. Higher levels of phthalates were also associated with smaller head circumference in all infants.
Scientists at Nanyang Technological University, Singapore, have developed a durable coating that prevents fogging and 'self-cleans' under sunlight exposure. The coating shows excellent adherence to the plastic surface and maintains durability in tests, offering an attractive long-term solution for various applications.
Researchers at the University of Eastern Finland used molecular modeling to investigate nano-plastic transport into cell membranes. The study found that some microplastics can passively penetrate the membrane, potentially causing adverse health effects.
A University of Toronto study found high levels of hazardous chemicals in Canadian nail salons, with exposures up to 30 times higher than in homes and 10 times higher than in e-waste handling facilities. The study urges government and product manufacturers to make safer personal care products and safer spaces for workers and customers.
Researchers at the University of Copenhagen found hundreds of chemical substances in tap water stored in reusable plastic bottles, including some potentially harmful to human health. The study revealed that machine washing and dishwasher use can increase the leaching of toxic substances from the plastic.
Researchers at MIT have engineered a composite made mostly from cellulose nanocrystals, which is stronger and tougher than some types of bone, and harder than typical aluminum alloys. The material has a unique brick-and-mortar microstructure that resembles nacre, making it resistant to cracks and plastic deformation.
A City University of Hong Kong study found that improper disposal of surgical masks can pollute over 54,800 Olympic-sized swimming pools annually with microplastics. The research also showed that microplastics accumulate in the food chain, affecting marine organisms and potentially harming higher-level species.
Researchers in California discovered that most trash items come from local sources, with nearly 60% of collected materials being plastic. The study suggests that cities can address the issue through bans on frequent litterers and increased street sweeping to prevent reoccurring litter.
Researchers at University of North Carolina at Chapel Hill have developed a method to break down plastics and create stronger, more valuable materials. By modifying carbon-hydrogen bonds, they can expand the life span of single-use plastics into high-value polymers.
A PSU-led research team will investigate microplastic sources and movement across the Columbia River Basin, aiming to secure a larger grant. The project involves diverse stakeholders and will develop an educational course for K-12 educators.
A study led by Florida Atlantic University reveals a vast amount of microplastics in the entire water column of an offshore plastic accumulation zone, with small microplastics being critical and underexplored. The findings highlight the importance of understanding the impact of these tiny plastics on marine ecosystems.
Researchers at MIT have developed a new material that is stronger than steel and as light as plastic, with potential applications in car parts, cell phones, bridges, and other structures. The material, called polyaramide, self-assembles into sheets and has unique properties, including high elastic modulus and impermeability to gases.
Research confirms microplastics are present in the placenta and in newborns, posing a significant risk to children's health. The Norwegian University of Science and Technology has called for more research on life's early stages to understand the effects of nano- and microplastics.
Researchers have developed a method to detect tiny plastic scraps on remote beaches using satellite technology. This innovation enables the tracking of plastics within satellite images, allowing for more frequent and reliable observations.
A new study proposes a sustainable recycling method for PPE waste using pyrolysis, a medium-temperature reaction that reduces plasticized medical-protection garb into chemicals and petroleum. The method avoids landfill use and incineration, reducing greenhouse gas emissions by 35.42%.
Research found that over 55,000 chemicals in everyday plastic products can reprogram precursor cells to become fat cells, leading to increased fat accumulation. The study suggests that previously unknown plastic chemicals may be contributing to overweight and obesity.
A study by ICTA-UAB suggests that microplastic levels in the Mediterranean Sea are likely higher than previously estimated due to the limitations of current sampling methods. The researchers emphasize the need for a common framework to compare results and combine methods to better understand the distribution and impacts of microplastics.
Researchers detected 43 trillion miniature plastic particles in Switzerland every year, with estimates suggesting up to 3,000 tonnes of nanoplastics covering the country annually. The study reveals that nanoplastics originate primarily from urban areas and global emissions, posing potential health risks when inhaled.
Researchers at the University of Delaware have developed a low-pressure method to convert industrially processed biomass into high-performance plastics and valuable chemicals. The process uses glycerin as a solvent instead of methanol, reducing costs and environmental impact.
Researchers at West Virginia University have created a simple microwave catalytic process to upcycle single-use plastics into high-value benzene, toluene, and xylene. This technology aims to increase the recycling rate of plastic waste and reduce greenhouse gas emissions by providing an alternative source of petrochemical materials.
Researchers at Penn State have been awarded a $3.4 million contract from the REMADE Institute to develop a flexible, two-stage chemical recycling process for mixed plastic waste. The process aims to decompose multiple types of plastic and convert them into valuable chemicals that can be used to create new products.
Researchers at the University of Auckland have developed a shipping container-based unit to disinfect N95 masks and other PPE, allowing for potential reuse and recycling. The method uses dry heat, which is effective in killing SARS-CoV-2 and bacteria, while minimizing environmental harm.
Researchers create two new polymers from sugar-based starting materials that retain common plastic qualities but are degradable and mechanically recyclable. The polymers' unique shapes and stereochemistry-dependent degradation rates offer a promising solution for sustainable plastics, with potential applications in various industries.
The University of Delaware is leading a research team to create new, environmentally friendly plastics using biomass. The goal is to minimize fossil fuel use and enhance recycling efficiency. The project aims to develop polymers with properties comparable to PET, a common plastic used in consumer products.
Scientists at the University of Missouri discovered that bisphenol A (BPA) exposure during pregnancy can negatively impact fetal brain development. MicroRNAs in the placenta play a key role in regulating cellular functions, including neural development. Researchers believe that microRNA packages could reach the brain through the placen...
A Rutgers study found that phthalates, commonly found in consumer products, can alter the production of essential placental hormones during pregnancy. Higher levels of phthalates have been linked to increased risk of preterm birth, gestational diabetes, and high blood pressure.
A recent study found that over half of macroplastics in Mediterranean MPAs originated elsewhere, highlighting the need for international collaboration on plastic pollution management. The study also showed that coastal zones are most impacted by micro- and macroplastic pollution.
Researchers at Aarhus University have developed a new camera technology that can separate plastics based on their chemical composition. The technology uses hyperspectral cameras and machine learning to identify 12 types of plastics, including PE, PP, PET, and others, making it possible for more accurate recycling.
Researchers discovered that people with inflammatory bowel disease (IBD) have higher levels of microplastics in their feces compared to healthy individuals. The study suggests a possible link between microplastic exposure and IBD, but the exact relationship remains unclear.
A recent study has discovered microplastic in the high-altitude air surrounding Pic du Midi Observatory, located in the Pyrenees mountains. The researchers analyzed 10,000 cubic meters of air and found a concentration of approximately one particle per 4 cubic meters. This finding indicates intercontinental atmospheric transport of micr...