#polyethylene — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #polyethylene, aggregated by home.social.
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https://www.europesays.com/afrique/98275/ Vers une inévitable hausse du prix des voitures ? #Acier #aluminium #automobiles #caoutchouc #DetroitD'Ormuz #Iran #MoyenOrient #naphta #Plastique #polyéthylène #Tunisie #Véhiculesélectriques
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https://www.europesays.com/iran/77223/ The Hormuz Closure Is Driving a Shortage of Battery Ingredients #catl #China #cobalt #copper #ethylene #Hormuz #IranWar #lithium #LithiumIonBatteries #nickel #PersianGulf #polyethylene #StraitOfHormuz #SulfuricAcid #Tesla
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According to a new #study published in The ISME Journal, #marine #bacteria are starting to develop #enzymes capable of breaking down #polyethylene #terephthalate (#PET), one of the most common #plastics.
https://nautil.us/some-bacteria-have-evolved-the-ability-to-degrade-plastic-1246780/
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#MarineFungi Could Eat #PlasticPollution, Helping to Clean Our #Oceans and #Beaches
Learn more about the marine #fungi that could be conditioned to help clean up #Hawaii’s beaches.
By Monica Cull
Feb 14, 2025 4:00 PMFeb 14, 2025 4:01 PM"Hawaii is home to some of the world’s most beautiful landscapes. Striking blue waters, lush jungles, and pristine beaches make it a paradise. It’s also home to other unique inhabitants, such as sea turtles, dolphins, and… plastics?
"According to a new study from the University of Hawai‘i (UH) at Mānoa, plastics are becoming the most prevalent form of pollution in the ocean, which can be detrimental to marine species and their habitat. However, researchers from UH discovered a fungus from Hawai‘i’s nearshore environment that may have the ability to break down plastics, and to top it off, they may be conditioned to do it faster. The findings were recently published in Mycologia.
" 'Plastic in the environment today is extremely long-lived and is nearly impossible to degrade using existing technologies,' said Ronja Steinbach, lead author of the study and a marine biology undergraduate student at the UH Mānoa College of Natural Sciences, in a press release.
"Marine fungi may be a term you’ve never heard before. This is likely due to the fact that less than 1 percent of marine fungi are known to science.
" 'Our research highlights marine fungi as a promising and largely untapped group to investigate for new ways to recycle and remove plastic from #nature. Very few people study fungi in the ocean, and we estimated that fewer than one percent of marine fungi are currently described,' said Steinbach in the press release.
"For this study, the research team looked at marine fungi found in #corals, #seaweed, #sand, and #sponges from Hawai’i’s nearshore. And they hope that the fungi could help degrade plastics in the marine environment.
" 'Fungi possess a superpower for eating things that other organisms can’t digest (like #wood or #chitin), so we tested the fungi in our collection for their ability to digest plastic,' said Anthony Amend, Pacific Biosciences Research Center professor and co-lead author of the study, in a press release.
The Hungry Fungi
"The team exposed the fastest-growing fungi to small dishes filled with #polyurethane, a common plastic, and noted if and how fast the fungi would consume it. The team also 'experimentally evolved' the fungi to see if they would grow and consume more polyurethane the more they were exposed to the plastic.
" 'We were shocked to find that more than 60 percent of the fungi we collected from the ocean had some ability to eat plastic and transform it into fungi,' Steinbach said in a press release. 'We were also impressed to see how quickly fungi were able to adapt. It was very exciting to see that in just three months, a relatively short amount of time, some of the fungi were able to increase their feeding rates by as much as 15 percent.'
"The research team is currently working to see if these marine fungi can break down other forms of plastics, such as #polyethylene and #PolyethyleneTerephthalate. They’re also trying to understand how, at a molecular level, these fungi can degrade these plastics.
" 'We hope to collaborate with #engineers, #chemists, and #oceanographers who can leverage these findings into actual solutions to clean up our beaches and oceans,' said Steinbach in a press release.
#SolarPunkSunday #PlasticPollution #Pollution #PollutionSolutions
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Lotte Chemical suspends production at Daesan plant due to power outage, plans gradual resumption of operations
#YonhapInfomax #LotteChemical #DaesanPlant #ProductionHalt #PowerOutage #Polyethylene #Economics #FinancialMarkets #Banking #Securities #Bonds #StockMarket
https://en.infomaxai.com/news/articleView.html?idxno=52094 -
Levels of microplastics in human brains may be rapidly rising, study suggests
"The exponential rise in microplastic pollution over the past 50 years may be reflected in increasing contamination in human brains, according to a new study."
"The human body is widely contaminated by microplastics. They have also been found in blood, semen, breast milk, placentas and bone marrow. The impact on human health is largely unknown, but they have been linked to strokes and heart attacks".
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https://www.theguardian.com/environment/2025/feb/03/levels-of-microplastics-in-human-brains-may-be-rapidly-rising-study-suggests
#plastics #anthropogenic #microplastics #nanoplastic #contamination #MNP #polyethylene #PolymerBasedParticulates #body #OneHealth #pollution -
5 firms in #plastic #pollution alliance ‘made 1,000 times more plastic than they cleaned up’ 5 #oil and #chemical companies which promised to divert plastic from #environment produced 132m tonnes of it, analysis finds #fossilfuels #oceans - two types of plastic; #polyethylene (#PE) and PP (#polypropylene) in five years – more than 1,000 times the weight of the 118,500 tonnes of waste plastic the alliance has removed https://www.theguardian.com/environment/2024/nov/20/five-firms-in-plastic-pollution-alliance-made-1000-times-more-waste-than-they-saved-analysis-shows #ExxonMobil #Dow #Shell #TotalEnergies #ChevronPhillips
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Recycling Tough Plastics Into Precursors With Some Smart Catalyst Chemistry https://hackaday.com/2024/10/08/recycling-tough-plastics-into-precursors-with-some-smart-catalyst-chemistry/ #CurrentEvents #polypropylene #polyethylene #OriginalArt #MiscHacks #recycling #Featured #Science #plastic #science
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Recycling Tough Plastics Into Precursors With Some Smart Catalyst Chemistry - Plastics are unfortunately so cheap useful that they’ve ended up everywhere. They’... - https://hackaday.com/2024/10/08/recycling-tough-plastics-into-precursors-with-some-smart-catalyst-chemistry/ #currentevents #polypropylene #polyethylene #originalart #mischacks #recycling #featured #science #plastic
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https://undark.org/2024/08/21/plastic-waste-transformed-into-food-for-humans
@MichiganTech system begins with a…shredder, which reduces…to small shards that then move into a reactor, where they soak in #ammoniumhydroxide under high heat. Some #plastics, such as #PET, which is commonly used to make disposable water bottles, break down at this point. Other plastics used in military food packaging — namely #polyethylene and #polypropylene — are passed along to another reactor, where they are subject to much higher heat and an absence of oxygen…
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Marine Fungi Decompose Polyethylene
Fungus found on floating plastic debris in the ocean has the potential to degrade polyethylene to CO₂
https://www.chemistryviews.org/marine-fungi-decompose-polyethylene/
#sustainability #plasticwaste #marinefungi #polyethylene #science #chemistry # chemistryviews
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"evidence of microplastics in human semen"
micoplastic's getting solved by old men in governments around the world in 3,2,1
https://mastodon.social/@peterjriley2024/112597914969820872
Research published in the journal Science of the Total Environment, detected eight different plastics. #Polystyrene was most common, followed by #polyethylene, used in plastic bags, and then #pvc
https://www.sciencedirect.com/science/article/abs/pii/S0048969724036696
NMP Pollution of Placenta
https://academic.oup.com/toxsci/article/199/1/81/7609801?#Nanoplastics #Microplastics #Pollution #endocrine disruption #Toxicology
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Raman Microspectroscopy evidence of microplastics in human semen
Research published in the journal Science of the Total Environment, detected eight different plastics. #Polystyrene was most common, followed by #polyethylene, used in plastic bags, and then #pvc
https://www.sciencedirect.com/science/article/abs/pii/S0048969724036696
NMP Pollution of Placenta
https://academic.oup.com/toxsci/article/199/1/81/7609801?#Nanoplastics #Microplastics #Pollution #endocrine disruption #Toxicology
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Study identifies #fungus that breaks down ocean plastic
https://phys.org/news/2024-06-fungus-ocean-plastic.html#Biodegradation of #polyethylene by the marine fungus Parengyodontium album https://www.sciencedirect.com/science/article/abs/pii/S0048969724029668
"A fungus living in the sea can break down the #plastic polyethylene, provided it has first been exposed to UV radiation from sunlight. Researchers expect that many more plastic degrading #fungi are living in deeper parts of the #ocean."
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Just playing with #bubblewrap and thinking that it’s not so much air that absorbs incident force but the #polymer film of the bubble. You can feel the #modulus of the material as you press on it. Air doesn’t respond like that, but a pretensioned #polyethylene film does. #polymers #materials #materialscience #chemistry #cantturnitoff #AlwaysThinkingAboutPolymers
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New study suggests #microplastics found in the blood stream could raise risk of stroke & heart attack: >50% of the fatty plaques removed from blood vessels of patients with arterial disease had deposits with tiny #polyethylene or #PVC particles.#plastic
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“By 1958, polyethylene hoops sucked up one-third of the nation’s production of a new high-density #polyethylene” from #Plastics An Autobiography by Allison Cobb (p182-3)
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Microplastics found in every human placenta tested in study | Plastics | The Guardian
https://www.theguardian.com/environment/2024/feb/27/microplastics-found-every-human-placenta-tested-study-health-impact#Microplastics
#Placenta
#Foetus
#UnbornBaby
#HumanBlood
#BreastMilk
#Faeces
#Poo
#IBD
#InflammatoryBowelDisease
#ToxicologicalSciences
#PVC
#Nylon
#Polyethylene
#CapitalMedicalUni
#China
#NewMexicoUni -
[ Researchers engineer bacteria that eat plastic, make multipurpose spider silk ]
https://phys.org/news/2024-01-bacteria-plastic-multipurpose-spider-silk.html #Polyethylene #Bacteria -
#HyPrSpace received funding 💶 from #France 2030, a #French 🇫🇷 government fund that invests in innovative technologies.
#BaguetteOne 🥖 should take flight in the beginning of 📆 2026 and aims to put small #satellites 🛰️ up to 250 kilograms into #orbit. The solid fuel ⛽ component can use recycled ♻️ #polyethylene, a common plastic https://www.lemonde.fr/en/france/article/2023/12/12/french-baguette-one-rocket-project-gets-funding-to-launch_6335565_7.html -
https://phys.org/news/2023-12-potentially-chemical-byproducts-left-sunlight.html
#polystyrene…produced "a higher diversity of chemicals" than the #polyethylene and #polypropylene.
"Once you #photodegrade them—especially, polystyrene—the chemicals can recombine and produce hundreds of different chemicals."
"The microlayer covers the whole ocean, which represents 70% of the Earth's surface…If you alter the chemistry of that layer, you're altering the barrier between sea and air, and altering the exchange of material including climate-active gases."
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"Enzymes that break down a polymer in wood can also handle polyethylene...
Researchers... in Sri Lanka have discovered species of #fungi that can break down #polyethylene—the same type of #plastic used for bags, bottles, cling wrap, takeout containers, and more."
#plastics #pollution #oceans #recycling #sustainability #trash
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Occurrence and backtracking of #microplastic mass loads including tire wear particles in northern Atlantic #air
Few studies report the occurrence of microplastics (MP), including tire wear particles (TWP) in the marine #atmosphere, and little data is available regarding their size or sources. Here we present active air sampling devices (low- and high-volume samplers) for the evaluation of composition and MP mass loads in the marine #atmosphere. Air was sampled during a research cruise along the Norwegian coast up to Bear Island. Samples were analyzed with pyrolysis-gas chromatography-mass spectrometry, generating a mass-based data set for MP in the marine atmosphere. Here we show the ubiquity of MP, even in remote Arctic areas with concentrations up to 37.5 ng m−3. Cluster of #polyethylene terephthalate (max. 1.5 ng m−3) were universally present. TWP (max. 35 ng m−3) and cluster of #polystyrene, #polypropylene, and #polyurethane (max. 1.1 ng m−3) were also detected. Atmospheric transport and dispersion models, suggested the introduction of MP into the marine atmosphere equally from sea- and land-based emissions, transforming the ocean from a #sink into a #source for MP.
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#Fungi that break down hardwood #trees can do the same with #plastic, study shows.
https://phys.org/news/2023-07-fungi-hardwood-trees-plastic.html
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#Nurdles: The Worst #ToxicWaste You’ve Probably Never Heard Of
Billions of these tiny #plastic pellets are floating in the ocean, causing as much damage as oil spills, yet they are still not classified as hazardous
by Karen McVeigh
"Nurdles, the colloquial term for 'pre-production #plastic pellets', are the little-known building block for all our plastic products. The tiny beads can be made of #polyethylene, #polypropylene, #polystyrene, polyvinyl chloride (#PVC) and other plastics. Released into the environment from plastic plants or when shipped around the world as raw material to factories, they will sink or float, depending on the density of the pellets and if they are in freshwater or saltwater.
"They are often mistaken for food by seabirds, fish and other wildlife. In the environment, they fragment into nanoparticles whose hazards are more complex. They are the second-largest source of #micropollutants in the ocean, by weight, after tyre dust. An astounding 230,000 tonnes of nurdles end up in oceans every year."
#PlasticPollution #Micrplastics -
#Nature 📆 August 2022 #SpaceRadiation and exposure risk reduction. Shielding performances of potential materials #aluminum (Al), #polyethylene (PE), and carbon fiber reinforced plastic (#CFRP). The effective dose equivalent was reduced by 50% 〽️ https://www.nature.com/articles/s41598-022-17079-1
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MIT #engineers have now found that #polyethylene #glycol (#PEG) — a #hydrogel commonly used in cosmetic creams, industrial coatings, and pharmaceutical capsules — can absorb moisture from the #atmosphere even as temperatures climb.
#Engineering #MaterialScience #sflorg
https://www.sflorg.com/2023/04/eng04182301.html