Showing 20 articles starting at article 641
< Previous 20 articles Next 20 articles >
Categories: Chemistry: Organic Chemistry, Paleontology: General
Published New material transforms light, creating new possibilities for sensors



A new class of materials that can absorb low energy light and transform it into higher energy light might lead to more efficient solar panels, more accurate medical imaging and better night vision goggles.
Published Which came first: The reptile or the egg?



The earliest reptiles, birds and mammals may have borne live young, researchers have revealed.
Published New model offers a way to speed up drug discovery



A model known as ConPLex can predict whether potential drug molecules will interact with specific protein targets, without having to perform the computationally intensive calculation of the molecules' structures. By applying a language model to protein-drug interactions, researchers can quickly screen large libraries of potential drug compounds.
Published Ancient herbivore's diet weakened teeth leading to eventual starvation, study suggests



Researchers have shed light on the life of the ancient reptile Rhynchosaur, which walked the earth between 250-225 million years ago, before being replaced by the dinosaurs.
Published Sustainable technique to manufacture chemicals



A newly published study details a novel mechanochemistry method that can produce chemicals using less energy and without the use of solvents that produce toxic waste.
Published Lost giants: New study reveals the abundance decline of African megafauna



A groundbreaking new paper focuses on the size and abundance of living and fossil African large mammals, shedding light on the ecological dynamics behind the decline of these iconic creatures. The findings challenge previous assumptions about the causes of megafaunal extinctions in Africa and provide new insights into the restructuring of ecosystems over millions of years.
Published Breakthrough: Scientists develop artificial molecules that behave like real ones



Scientists have developed synthetic molecules that resemble real organic molecules. A collaboration of researcher can now simulate the behavior of real molecules by using artificial molecules.
Published A new way to develop drugs without side effects



Have you ever wondered how drugs reach their targets and achieve their function within our bodies? If a drug molecule or a ligand is a message, an inbox is typically a receptor in the cell membrane. One such receptor involved in relaying molecular signals is a G protein-coupled receptor (GPCR). About one-third of existing drugs work by controlling the activation of this protein. Researchers now reveal a new way of activating GPCR by triggering shape changes in the intracellular region of the receptor. This new process can help researchers design drugs with fewer or no side effects.
Published Greenhouse gas emissions at 'an all-time high' -- and it is causing an unprecedented rate of global warming, say scientists



Human-induced warming, largely caused by the burning of fossil fuels, reached an average of 1.14°C for the most recent decade (2013 to 2022) above pre-industrial levels. This is up from 1.07°C between 2010 and 2019. Human-induced warming is now increasing at a pace of over 0.2°C per decade. The analysis also found that greenhouse gas emissions were 'at an all-time high', with human activity resulting in the equivalent of 54 (+/-5.3) gigatonnes (or billion metric tonnes) of carbon dioxide being released into the atmosphere on average every year over the last decade (2012-2021). Given the speed at which the global climate system is changing, the scientists argue that policymakers, climate negotiators and civil society groups need to have access to up-to-date and robust scientific evidence on which to base decisions.
Published New dino, 'Iani,' was face of a changing planet



A newly discovered plant-eating dinosaur may have been a species' 'last gasp' during a period when Earth's warming climate forced massive changes to global dinosaur populations.
Published Water molecules define the materials around us



A new paper argues that materials like wood, bacteria, and fungi belong to a newly identified class of matter, 'hydration solids.' The new findings emerged from ongoing research into the strange behavior of spores, dormant bacterial cells.
Published Remains of an extinct world of organisms discovered



Newly discovered biomarker signatures point to a whole range of previously unknown organisms that dominated complex life on Earth about a billion years ago. They differed from complex eukaryotic life as we know it, such as animals, plants and algae in their cell structure and likely metabolism, which was adapted to a world that had far less oxygen in the atmosphere than today.
Published More complex than expected: Catalysis under the microscope



Usually, catalytic reactions are analyzed by checking which chemicals go into a chemical reactor and which come out. But as it turns out, in order to properly understand and optimize catalysts, much more information is necessary. Scientists developed methods to watch catalytic reactions with micrometer resolution under the microscope -- and the process is much more complex than previously thought.
Published Illuminating the molecular ballet in living cells



Researchers have developed one of the world's fastest cameras capable of detecting fluorescence from single molecules.
Published Flat fullerene fragments attractive to electrons



Researchers have gained new insights into the unique chemical properties of spherical molecules composed entirely of carbon atoms, called fullerenes. They did it by making flat fragments of the molecules, which surprisingly retained and even enhanced some key chemical properties.
Published Multiple species of semi-aquatic dinosaur may have roamed pre-historic Britain



Palaeontologists studying a British dinosaur tooth have concluded that several distinct groups of spinosaurs -- dinosaurs with fearsome crocodile-like skulls -- inhabited southern England over 100 million years ago.
Published Lab-grown mini lungs could accelerate the study of respiratory diseases



Researchers have collaborated to refine a cell culture technology platform that grows genetically identical lung buds from human embryonic stem cells.
Published You can make carbon dioxide filters with a 3D printer



Researchers demonstrated that it's possible to make carbon dioxide capture filters using 3D printing.
Published A protein mines, sorts rare earths better than humans, paving way for green tech



Rare earth elements, like neodymium and dysprosium, are a critical component to almost all modern technologies, from smartphones to hard drives, but they are notoriously hard to separate from the Earth's crust and from one another. Scientists have discovered a new mechanism by which bacteria can select between different rare earth elements, using the ability of a bacterial protein to bind to another unit of itself, or 'dimerize,' when it is bound to certain rare earths, but prefer to remain a single unit, or 'monomer,' when bound to others.
Published Crossing the ring: New method enables C-H activation across saturated carbocycles



Chemists add another powerful tool to their 'molecular editing' toolkit for crafting pharmaceuticals and other valuable compounds.