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Search results for “Chemistry”

1,000+ results for "Chemistry"

What came first, life or evolution?

Researchers demonstrate key Darwinian evolution principles in self-replicating molecules, indicating evolution predates life. Competitive exclusion among these molecules curtails chemical diversification, shedding light on potential emergence of life from non-living materials.

SourceUniversity of Groningen·JournalNature Chemistry·TypeExperimental study·DateNov 29, 2024

Novel green chemistry: A safe, low-cost, and eco-friendly conversion process for the synthesis of sulfonyl fluorides, a world first!

A research group from Osaka University has developed a novel green chemistry method to synthesize sulfonyl fluorides efficiently and with minimal environmental impact. This process uses easily accessible raw materials, thiols and disulfides, and produces only non-toxic sodium and potassium salts as byproducts.

SourceOsaka University·JournalACS Sustainable Chemistry & Engineering·TypeExperimental study·DateSep 3, 2024

Breaking open the AI black box, team finds key chemistry for solar energy and beyond

Researchers at the University of Illinois have developed a method to understand and improve light-harvesting molecules for solar energy applications. By combining AI with automated chemical synthesis and experimental validation, they were able to produce molecules four times more stable than traditional ones.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalNature·TypeExperimental study·DateAug 28, 2024

New FSU research shows statistical analysis can detect when ChatGPT is used to cheat on multiple-choice chemistry exams

Researchers at Florida State University have developed a statistical analysis method that can detect when AI chatbot ChatGPT is used to cheat on multiple-choice chemistry exams. The study uses Rasch modeling and fit statistics to identify patterns in student responses that are different from those of ChatGPT.

SourceFlorida State University·JournalJournal of Chemical Education·DateAug 14, 2024

A bionanomachine for green chemistry

Scientists at the Paul Scherrer Institute have precisely characterized the styrene oxide isomerase enzyme, enabling the production of valuable chemicals and drug precursors in an environmentally friendly manner. The enzyme's unique mechanism and high specificity make it a promising tool for green chemistry.

SourcePaul Scherrer Institute·JournalNature Chemistry·TypeExperimental study·DateMay 14, 2024

Getting dynamic information from static snapshots

Researchers from UChicago create TopicVelo, a new method using scRNA-seq data to study dynamic processes in cells. The method groups data by biological processes, such as ribosomal synthesis, differentiation, and immune response, to better understand how cells change over time.

SourceUniversity of Chicago·JournalProceedings of the National Academy of Sciences·TypeObservational study·DateApr 26, 2024

Carnegie Mellon researchers develop new machine learning method for modeling of chemical reactions

Researchers at Carnegie Mellon University have created a new machine learning model that can simulate reactive processes in diverse organic materials and conditions. The model, called ANI-1xnr, performs simulations with significantly less computing power and time than traditional quantum mechanics models.

SourceCarnegie Mellon University·JournalNature Chemistry·TypeComputational simulation/modeling·DateMar 7, 2024

Tactile lithophane development makes hard scientific data available to students with blindness

A Baylor University chemistry professors develop a codex using lithophane, converting images from scientific textbooks into tactile formats for students with blindness. The study found that students with blindness can accurately describe, recall and distinguish high-resolution data and imagery at an average accuracy of 88%.

SourceBaylor University·JournalScience Advances·TypeObservational study·DateJan 10, 2024

Carnegie Mellon-designed artificially intelligent coscientist automates scientific discovery

The Coscientist AI system has been successfully designed, planned, and executed a chemistry experiment, demonstrating its potential to revolutionize scientific research. By leveraging large language models and cloud lab technology, Coscientist can automate the experimental process, enabling scientists to design and run experiments much...

SourceCarnegie Mellon University·JournalNature·TypeExperimental study·DateDec 20, 2023

New insight on electrochemical reactions – advancing the green transition

Researchers at University of Jyväskylä have gained new understanding on the chemistry of electrochemical interfaces, focusing on electrolyte ion effects. This knowledge can enhance the development of improved electrochemical technologies, including fuel cells and hydrogen peroxide synthesis.

SourceUniversity of Jyväskylä - Jyväskylän yliopisto·JournalNature Communications·TypeExperimental study·DateDec 11, 2023

A fork in the rhod: Janelia researchers unveil comprehensive collection of rhodamine-based fluorescent dyes

The Janelia Fluor dyes have become a staple in biology labs worldwide, and the team has now expanded their spectrum with a new set of far-red shifted dyes that can penetrate deeper into tissue. The researchers developed a novel chemistry to synthesize these dyes, enabling them to create dozens of functional versions relatively quickly.

SourceHoward Hughes Medical Institute·JournalJournal of the American Chemical Society·DateDec 8, 2023

Scientists use quantum device to slow down simulated chemical reaction 100 billion times

Researchers at the University of Sydney have successfully slowed down a simulated chemical reaction by a factor of 100 billion times using a quantum computer. This achievement allows for direct observation of previously inaccessible processes, enabling breakthroughs in fields like materials science and drug design.

SourceUniversity of Sydney·JournalNature Chemistry·TypeExperimental study·DateAug 28, 2023

Chloride ions from seawater eyed as possible lithium replacement in batteries of the future

Researchers at Worcester Polytechnic Institute discovered a new redox chemistry empowered by chloride ions for the development of seawater green batteries. This technology leverages abundant elements such as iron oxides and hydroxides, potentially repurposing iron rust waste materials for modern energy storage.

SourceWorcester Polytechnic Institute·JournalChemistry of Materials·TypeExperimental study·DateAug 10, 2023

“Modern chemistry is rubbish”

Researchers argue that modern chemistry prioritizes novelty over sustainability, neglecting environmental concerns. They advocate for a triple focus on efficiency, safety, and circularity to combat pollution and promote green chemistry. Circular design, life-cycle thinking, and toxicology assessments are key to realising positive impact.

SourceUniversiteit van Amsterdam·JournalNature Reviews Chemistry·DateAug 8, 2023

Insilico Medicine scientists propose stricter standards for evaluating generative AI-produced molecules

The study evaluates recent research on artificial intelligence-generated molecular structures from the perspective of medicinal chemists, recommending guidelines for assessing novelty and validity. Insilico Medicine's recommendations aim to improve the process of generating and evaluating novel AI-generated drugs.

SourceInSilico Medicine·JournalACS Medicinal Chemistry Letters·TypeLiterature review·DateJul 18, 2023

Scientists synthesize isotopic atropisomers based on carbon isotope discrimination

Researchers successfully synthesized isotopic atropisomers based on carbon isotope discrimination, exhibiting high rotational stability and stereochemical purity. The findings hold promise for fundamental understanding of isotopic atropisomers with implications in organic and medicinal chemistry.

SourceShibaura Institute of Technology·JournalThe Journal of Organic Chemistry·TypeExperimental study·DateJul 6, 2023