Paint in buildings a huge reservoir of PFAS waiting to enter the environment
Decades worth of chemicals stored in paints that been applied to homes and businesses
30 June 2026
#chemtoots — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #chemtoots, aggregated by home.social.
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A greener approach to finishing fabrics
A new method that chemically alters seed oil from the cotton plant to create an alternative to current finishing agents based on formaldehyde or per- and polyfluoroalkyl substances (PFAS) has been presented.The new material is epoxidised cottonseed oil (ECSO). The ECSO molecules bond strongly to each other, forming a hydrophobic polymer that repels water and avoids wrinkling.
https://www.chemistryworld.com/news/a-greener-approach-to-finishing-fabrics/4022063.article
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Less than 10% of plastics are produced using recycled materials
An analysis of the global plastics industry shows that only 9.5% of plastic was made from recycled materials in 2022. Almost a third of plastic waste produced during that year was allocated for recycling, but only half was actually recycled.
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Green light for UK carbon capture projects – but will they deliver?
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PFAS in fertilisers blamed for killing livestock in Texas and wreaking havoc
Synagro fertiliser made from biosolids (municipal wastewater-treated sewage sludge from the city of Fort Worth, Texas) has been blamed, as these kind of fertilisers have been known to contain PFAS-contaminated biosolids.
https://www.chemistryworld.com/news/pfas-in-fertilisers-blamed-for-killing-livestock-in-texas-and-wreaking-havoc/4020874.article
#Pollution #PFAS #ForeverChemicals #Chemistry #ChemToots #ChemiVerse -
New spectroscopy method maps out water’s hydrogen-bonded network
By Tim Wogan
31 October 2024Technique can be used to study other liquids and amorphous materials
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Danish university pauses chemistry demonstrations following accident
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Beyond hydrogen bonding: new definitions for secondary bonding interactions to end confusion
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:labcoat: Nanopore sequencing is a new protein sequencing method, which uses a biological motor to pull a protein through a tiny nanopore.
This method can detect post-translational modifications, including phosphorylation, in full-length protein structures at single molecule resolution.
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🌊 Metallic nodules sought by deep sea miners could be making oxygen in the depths
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PFAS from rechargeable batteries used in many lithium battery electrolytes pose environmental threat
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⚗️ Vermont has become the first US state to ban multiple chemicals, including PFAS, from menstrual products. This applies to tampons and sanitary pads.
Some of the chemicals banned are per- and polyfluoroalkyl substances (PFAS), phthalates, formaldehyde, 1,4-dioxane and mercury.
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Concerns raised over health effects of chemicals leaching from food packaging
By Anthony King | 14 March 2024
https://www.chemistryworld.com/news/concerns-raised-over-health-effects-of-chemicals-leaching-from-food-packaging/4019140.article
#Plastic #PlasticPollution #FoodPackaging #Packaging #ChemiVerse #ChemToots -
New analysis raises doubts over autonomous lab’s materials ‘discoveries’
A critique of a paper published in Nature last year, which reported the discovery of over 40 novel materials using an autonomous laboratory guided by artificial intelligence, has concluded that no new materials were discovered.
#AI #ArtificialIntelligence #MaterialsScience #ChemiVerse #ChemToots #Chemistry
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📣 PostDoc Position
👩🔬 The researcher will work at the Instituto de Ciencia Molecular in the Universitat de València, joining the project "Iron based molecular switches as advanced materials for storage and display information" led by Dr. Ana B. Gaspar.
📆 Duration: February 2024- December 2024, part time (20 h/week)
⏳ Apply by: Monday January 22nd 2024#hiring #chemistry #ChemiVerse #ChemToots #research #JobOffer #PostdocPosition #ICMol
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🍶 Nanoplastics make up around 90% of plastic particles found in bottled water
The researchers calculated that the average litre of bottled water held 240,000 particles of micro- and nanoplastics, with nanoplastics making up around 90% of the particles detected.These concentrations were ‘two or three orders of magnitude more’ than the abundance reported previously in bottled water in studies focusing only on large microplastics.
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PFAS Compounds, Known as Forever Chemicals, Accelerate Cancer Migration
#PFAS #PFOAS #ForeverChemicals #Pollution #ChemiVerse #ChemToots
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Chemical recycling in the firing line as viability of process questioned
Advanced recycling technology, processes that break plastics down into a range of chemicals, rather than mechanically breaking them apart for remoulding seems to be a marketing and lobbying practic by industry. A report found that in the best possible case scenario chemical recycling would only process about 3% of the world’s plastic waste by 2040.
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🧲 Very pleased that our latest paper "Lanthanide molecular nanomagnets as probabilistic bits" has been published, with @agaitaarino as IP.
Here we explore Lanthanide-based molecular nanomagnets as candidate probabilistic bits (p-bits), since in this context their stochastic behaviour constitutes a computational resource instead of a limitation.https://www.nature.com/articles/s41524-023-01149-7
#ChemiVerse #ChemToots #pBits #Lanthanide #NanoMagnets #MaterialsScience #ICMol
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⚗️ 💿 A great computational chemistry #database that contains calculations and may be interesting is the ioChem-BD.
Look it up:
https://www.iochem-bd.org/#ioChemBD #CompChem #ComputationalChemistry #ChemiVerse #ChemToots
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⚛️ 🖥️ Neural network boosts chiral ligand design.
⚗️ Researchers from Yale University and Boehringer Ingelheim Pharmaceuticals have used a neural network to harness the full potential of a small dataset (17 phosphorus ligands) of DFT-calculated molecular features for a Negishi cross-coupling reaction.
https://www.chemistryworld.com/news/neural-network-boosts-chiral-ligand-design/4018008.article
#ChemiVerse #ChemToots #Chemistry #NeuralNetwork #enantioselectivity
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Could cheap contract research organisations (CRO) rates threaten to destabilise biotech?
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Day 3 of #IUPACCHAINS2023 is off to a great start with a plenary lecture by Charlotte Williams. She talked about her group's work on new polymers and catalysts for making them for a more sustainable future.
#Chemistry #ChemiVerse #ChemToots https://doi.org/10.1021/jacs.2c06921 -
Day 3 of #IUPACCHAINS2023 is starting. Especially looking forward to talks by Annemieke Madder, Bob Ignacio of the Kim Bonger lab, Ali Tavassoli and Tom Grossmann, hosting the "Protein Modification and ABPP" session and the poster by Marnix Roseboom of our group.
#Chemistry #ChemToots #ChemiVerse -
The new method was used to analyse a library of 900,000 protein sequences up to 72 amino acids long. In an experiment lasting one week, it used £1500-worth of reagents, produced 1.8 million measurements and 776,000 high-quality folding stabilities.
#ChemToots #ChemiVerse #ProteinFolding #ProteinScience #CompChem
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Researchers in Spain have devised a new parameter for comparing and understanding bonds which can replace previous distance measurements with simple calculations. It describes the degree of interpenetration of the van der Waals crusts of two atoms.
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The emerging world of single-molecule mass measurements. New methods characterize large and complex samples that conventional mass spec struggles with.
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Oferta contrato de gestor del Máster Erasmus Mundus en Química Teórica y Modelización Computacional (ERASMUS MUNDUS JOINT MÁSTER DEGREE TCCM) en la Universidad Autónoma de Madrid.
ℹ️ https://www.uam.es/uam/investigacion/ofertas-empleo/contrato-erasmustccm-manuelalcami
#Master #TheoreticalChemistry #CompChem #ChemToots #Chemiverse #Job #JobOffer #Trabajo #Hiring #Academia
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Chemical firms kept data on PFAS health hazards. Documents suggest that DuPont and 3M had evidence of PFAS toxicity but suppressed the findings.
#PFAS #PFOAS #ForeverChemicals #Dupont #ChemToots #ChemiVerse #Chemistry
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‘Almost magical’: chemists can now move single atoms in and out of a molecule’s core
https://www.nature.com/articles/d41586-023-01735-1
#SkeletalEditing #Chemistry #MedicinalChemistry #ChemToots #ChemiVerse
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Check out our contribution to the Emerging Investigator Series of MSDE❗️ We report the functionalisation of macrocycles with concealed antiaromaticity by cross-coupling reactions ➡️ https://pubs.rsc.org/en/content/articlelanding/2023/me/d3me00045a Congratulations to first author Troy Bennett! 🥂 #ChemiVerse #ChemToots #OpenAccess
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CuSO4 & KCl 🔬 💎 ⚗️
A pleasant succession of crystal shapes. The star-shaped ones can hardly be discerned at the end.
What else do we see? 🔬
#chemtoots #chemistry #realtimechem #science #scheikunde #physics #experiment #timelapse #crystals #microscope #stem #systemschemistry
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Good read and valuable tool for going deeper in the quantum chemistry
#compchem
#chemtoots #chemiverseeChem: A Notebook Exploration of Quantum Chemistry
