Articles tagged with Plastics
A new study reveals that slow-moving seafloor currents near the bottom of the ocean direct the flow of microplastics, creating hotspots in sediments. These currents supply oxygen and nutrients to deep sea creatures, increasing the chance of ingestion by toxic microplastics.
Scientists have discovered the highest levels of microplastics ever recorded on the seafloor, with concentrations concentrated by powerful deep-sea currents. Microplastics are mainly comprised of fibres from textiles and clothing, and their distribution is linked to sediment-transport processes.
Researchers at Northwestern University have developed a new method for upcycling polyurethane foams, turning them into higher-value rubbers and hard plastics. This process removes air from the foam to create durable plastics or soft films, paving the way for recycling of polyurethane foam waste in various applications.
Researchers have found an increase in marine debris collected on beaches of Bird Island and Signy Island, with most items being plastic. Scientists also discovered that fishing vessels contribute significantly to plastic pollution, threatening seabirds and other wildlife in the region.
Researchers at RIT have developed the first three-dimensional model to show where microplastic pollution is collecting in Lake Erie. The study found that plastic particles accumulate more heavily on the eastern shore of the lake, with different types of plastics concentrated in different areas.
A new approach uses European Space Agency Sentinel-2 satellites to detect patches of floating plastics in marine environments, distinguishing them from other materials with 86% accuracy. The method successfully classified different types of plastics and natural materials across four coastal areas.
Researchers at Vienna University of Technology have developed a new synthesis method that uses only hot water to produce important polymers like polybenzimidazoles and pyrron polymers. The process avoids the use of toxic substances, making it an environmentally friendly alternative.
Researchers have designed a cost-effective canopy system to protect healthcare workers from airborne coronavirus infection while delivering non-invasive ventilation. The system, which forms an air chamber covering the upper body, has been tested against international standards and found to minimize risk of infection for medical staff.
Cornell University chemists have developed a new polymer that degrades by ultraviolet radiation, reducing persistent plastic accumulation in the environment. The material, isotactic polypropylene oxide, has mechanical properties comparable to commercial fishing gear and can break down on a realistic time scale.
Researchers are testing the feasibility of building roads from recycled plastics, mixed with asphalt for a safe and durable consistency. The project aims to create more sustainable roads while reducing waste and costs.
Researchers found that lobsters in Sardinia can eat and break down larger plastic particles, releasing smaller fragments into their intestines. These tiny particles, or "secondary" microplastics, could be more bioavailable to smaller creatures in the deep-sea food chain.
Researchers investigated the association between preconception exposure to plastics and the risk of preterm birth. Higher concentrations of phthalates prior to conception were found to be associated with an increased risk of preterm birth in a recent study.
A recent study by the University of Exeter and Marine Conservation Society found no difference in litter levels inside and outside England's Marine Protected Areas (MPAs), with plastic being the main form of litter. The research highlights the need for locally appropriate management to tackle specific sources of litter in different areas.
A study by Fraunhofer IVV, University of Erlangen-Nürnberg, and University of Alicante found that separating packaging waste from household waste reduces off-odors in plastic recyclates. The researchers identified over 60 odor-causing substances and found that washing post-consumer LDPE shopping bags at 60 degrees reduced overall odors.
Researchers identified a strain of bacteria capable of degrading some chemical building blocks of polyurethane, a thermosetting polymer difficult to recycle or destroy. The discovery represents an important step in reusing hard-to-recycle PU products and reducing toxic waste.
Researchers created an equation to estimate plastic ingestion by animals, finding that the largest piece eaten is about 5% of the animal's body length. The study analyzed over 2,000 animals and found shocking examples of plastic pollution, including a sperm whale with hosepipes and flower pots inside.
Researchers found high concentrations of microplastic particles in Fram Strait's water column and sediment. The deep sea is a major sink for microscopically small plastic particles, with sediments containing up to 13,000 particles per kilogramme.
Researchers find that urea in astronaut urine can be used to soften concrete, making it more pliable and resistant to extreme temperatures. The discovery could help reduce costs associated with transporting construction materials to the Moon.
Scientists successfully printed complex structures containing up to 27% cellulose particles, exhibiting mechanical properties similar to those of natural materials like wood. The developed process enables the creation of customized packaging, cartilage replacements, and potentially even sports car bodies.
Researchers at Chalmers University of Technology developed antibacterial surfaces using graphite nanoplatelets, reducing bacterial infections by 99.99% and preventing antibiotic resistance. The surfaces are designed to kill bacteria without damaging healthy human cells.
A new study published in the New England Journal of Medicine found that COVID-19 remains detectable for up to three hours in aerosols, up to four hours on copper, and up to two to three days on plastic and stainless steel. The virus can also be transmitted through casual contact, highlighting the importance of proper hygiene practices.
A study published in Scientific Reports found that opening plastic packaging can generate small amounts of microplastics. The researchers monitored the generation of microplastics during tasks such as tearing open plastic bags and bottles, finding that different shapes and sizes of microplastics were produced.
The study found that fish species and size affect the types and amounts of plastics ingested, with larger fish consuming more plastics. The research sheds light on how plastics enter marine ecosystems from urban watersheds and highlights the need for better understanding to reduce plastic pollution's impact.
Researchers developed a biodegradable film from fish scales to create flexible electronic displays. The film was found to be transparent, flexible and environmentally friendly, dissolving in hot water and degrading within 24 days.
A study by Washington State University researchers reveals that over 90% of US tap water contains nanoscale plastics, with unknown health and environmental consequences. The team is now working on techniques to remove these plastics from water.
Researchers at NIST identified acetic acid as a prime suspect in accelerating the degradation of polyamide-based backsheets, which are common in solar panels. The study highlights the importance of interplay between solar panel components in determining their longevity.
Researchers found that sea turtles respond to odors from biofouled plastics in the same way they respond to food odorants. This 'olfactory trap' explains why sea turtles ingest and become entangled in plastic debris. Biofouling, the accumulation of microbes on wet surfaces, is a major factor contributing to this attraction.
Researchers have developed a new process to produce polyolefins with varying levels of branching, allowing for easier recycling and potentially reducing plastic waste. The method also enables the creation of plastics from natural oils and other substances, addressing environmental sustainability issues.
Sea turtles eat ocean plastics due to their smell, which is caused by a coating of algae and microorganisms on the plastic. This can lead to blockages in their digestive systems and even illness.
Research shows that microplastics are damaging to coral ecosystems, causing significant reductions in population size and cell size. The exposure of endosymbionts to microplastics led to elevated stress levels and reduced detoxification activities, highlighting the importance of minimizing plastic use to preserve the environment.
Researchers at Cornell University developed a new way to control the properties of high-density polyethylene, a type of plastic commonly used in containers. The breakthrough allows for improved processability and strength while reducing the energy required for production and recycling.
Researchers have used X-ray analysis to study lignin, a byproduct of paper production, and its potential as a sustainable raw material for manufacturing bioplastics. The study reveals that different lignin fractions can be engineered to have varying properties, such as hardness or softness, making them suitable for specific applications.
An international team of scientists has made a breakthrough discovery using high-resolution transmission electron microscopy, revealing one-dimensional defects in two-dimensional zeolite nanosheets that improve filtration properties. The findings suggest enhanced separation and catalysis capabilities for molecules based on size and shape.
Researchers discovered that the transverse arch (TA) contributes significantly to the stiffness of the human foot, with half of its stiffness attributed to this structure. The study's findings have implications for understanding flatfoot disorder and the design of robotic feet.
Scientists use a cheap technique to mimic neutrinos colliding with ice, detecting radar echoes that carry information about high-energy particles. The method could eventually allow researchers to expand the energy reach of IceCube without breaking the bank.
The review highlights the global scope of microplastic pollution, affecting not just oceans but also land surfaces and the air. Researchers emphasize the need for holistic studies and improved analytical tools to understand microplastics' impacts on ecosystem health and human health.
A study found that bisphenol S, a BPA substitute, causes changes in gene expression and neurotransmitter levels in the mouse placenta, similar to BPA. The findings suggest that BPS may be toxic to humans, despite some differences in human and mouse placentas
Marine bacteria colonize microplastics, using them as artificial reefs, while some diatoms exhibit a preference for specific plastic types. Microplastics may serve as vehicles for toxic organisms, affecting marine life.
Researchers have created a fireproof solid electrolyte for lithium-ion batteries that can function well even when exposed to flames. The new material provides an energy density and performance comparable to conventional lithium-ion batteries while being significantly lighter.
High self-control individuals experience food as tastier and more satisfying when touching food directly with their hands, eating more of it. Direct touch triggers an enhanced sensory response, influencing how people evaluate food. This effect persists even when self-control is primed or manipulated.
Jia Niu's NSF CAREER-funded project aims to grow polymer chains uniformly, creating degradable and sustainable plastics. His research focuses on addressing pressing needs in biomedicine, materials, and environmental sciences.
Researchers find wooden pallets have a slightly lower carbon footprint than plastic pallets on both one-trip and 100,000-trip basis. Heat-treated wooden pallets incur a 20-30% lower carbon footprint than methyl bromide-fumigated ones.
Researchers discovered a substantial concentration of microplastics in the Delaware Bay, accumulating in hotspots driven by tidal, wind, and buoyancy variations. The study used field sampling and modeling to simulate microplastic distribution and found high concentrations near salinity fronts where surface currents converge.
Scientists at the University of Bath have developed a new chemical recycling method that can break down plant-based plastics like PLA into their constituent molecules. This technology has the potential to create a circular economy by reusing carbon indefinitely, reducing reliance on fossil fuels and greenhouse gas emissions.
A new soft and stretchable battery developed by Stanford researchers can store power more safely than conventional batteries, promising to enable the design of comfortable wearable electronics. The device maintains a constant power output even when stretched or squeezed.
A new composite film made with an antimicrobial layer has shown promise in reducing the growth of harmful bacteria on packaged meat and fish products. The film, which contains a biopolymer called pullulan and an antimicrobial compound called Lauric arginate, was found to be effective in killing pathogens such as Salmonella and E. coli.,
A team from Nara Institute of Science and Technology has developed a method to embed information in 3D printed objects and retrieve it using a consumer document scanner. The technique uses Fused Deposition Modeling (FDM) with modified layer thickness to hide data.
A new project at Aarhus University aims to develop a standardized, documentable 3D printing filament from recycled plastics. The goal is to improve the industry's reliance on new plastics and reduce waste., This innovation has the potential to significantly impact the environment and climate in the long term.
Researchers at ETH Zurich develop a new form of 18-carat gold that weighs about five to ten times less than traditional gold, with a density of just 1.7 g/cm3. The lightweight gold is created by embedding thin discs of gold nanocrystals in a matrix of protein fibres and polymer latex.
A new study finds that low doses of DEHP impair egg production in roundworms by increasing DNA double-strand breaks and hampering repair systems. This can lead to chromosomal defects and embryonic development problems.
A new University of Guelph study finds that BPS can hinder heart function, especially in females, with effects occurring within minutes of exposure. The study's findings raise concerns about the safety of BPS as a replacement for BPA and suggest banning it from consumer products.
A longitudinal study of 209 New York City women and their offspring found a decrease in fine-motor functions among girls following prenatal exposure to specific phthalates. The analysis identified three phthalates most linked to the deficits: mono-butyl phthalate, mono-benzyl phthalate, and mono-isobutyl phthalate.
Researchers at Universidad Complutense de Madrid developed an AI-powered algorithm that uses deep learning to detect irregularities in rice labelling. The algorithm achieved precision models between 93 and 99%, showing potential for future applications in the food industry.
Researchers at NTU Singapore have developed a method to turn plastic waste into valuable chemicals by harnessing sunlight, converting non-biodegradable polyethylene into formic acid, a chemical used in fuel cells and energy generation.
Scientists have introduced a new electrochemical method to produce ethylene from CO at room temperature and standard pressure, achieving high Faradaic efficiency and C2 selectivity. The technique uses a copper catalyst and optimized electrode structure, allowing for efficient separation of gaseous ethylene.
The Society for Risk Analysis announced the 2019 winners of Best Paper and Best Poster awards. Terje Aven, Sayanti Mukherjee, Christian Blanco, Edward Oughton, and others won top honors for their significant contributions to risk analysis theory and practice.
Scientists have discovered a new function in a plant enzyme that can initiate a crucial chemical reaction, producing diols used in lubricants and plastics. The enzyme's unique dioxygenase chemistry has implications for designing greener industrial catalysts with less waste and toxic chemicals.
A new European research project, HOTMIC, aims to investigate the fate of microplastic in the North Atlantic Ocean. The study's lead researcher suggests that microplastic particles may be transported by microorganisms or marine animals, which could have a significant impact on the marine ecosystem.
Researchers at UBC Okanagan and UVic have discovered a new 'hyper glue' formula that uses cross-linking technology to tightly bond plastics and synthetic fibers, making them stronger and more resistant to impact and corrosion.
A new study found that corals are more likely to eat microplastics when fed other food sources, but not when given microplastics alone. The research suggests that some coral species may adapt to life with microplastics, while others may be negatively impacted by chronic exposure.