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Categories: Chemistry: Organic Chemistry, Paleontology: General

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Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Computer Science: General
Published

Deciphering the molecular dynamics of complex proteins      (via sciencedaily.com) 

Which structures do complex proteins adopt in solution? Biophysicists answer this question using the example of ubiquitin dimers as well as a new combination of high-resolution NMR spectroscopy and sophisticated computer simulations.

Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Fossil Fuels Energy: Technology Geoscience: Environmental Issues
Published

New approach shows hydrogen can be combined with electricity to make pharmaceutical drugs      (via sciencedaily.com) 

The world needs greener ways to make chemicals. In a new study, researchers demonstrate one potential path toward this goal by adapting hydrogen fuel cell technologies.

Biology: Microbiology Biology: Molecular Chemistry: Organic Chemistry Physics: Optics
Published

Research team developing a nano-sized force sensor and improving high-precision microscopy technology      (via sciencedaily.com) 

Recent research in cell biology highlights groundbreaking results. An international team of researchers have recently established a tool they developed to study the mechanics of the cell. The tool can be used to study the inner forces of the cell, for example, the stretching of the nuclear membrane. The microscopic force sensor, only about 0.00002 mm long, is constructed of exotic ingredients such as spider web protein parts, fluorescent proteins from jellyfish, and antibodies from alpaca. In addition, the multidisciplinary team of researchers has developed further the sensitivity of super-resolution microscopy technique.

Chemistry: Organic Chemistry Energy: Fossil Fuels Energy: Technology Geoscience: Environmental Issues
Published

Groundbreaking green propane production method      (via sciencedaily.com) 

New research reveals a promising breakthrough in green energy: an electrolyzer device capable of converting carbon dioxide into propane in a manner that is both scalable and economically viable.

Biology: Evolutionary Biology: Marine Ecology: Invasive Species Ecology: Sea Life Paleontology: Fossils Paleontology: General
Published

The modern sea spider had started to diversify by the Jurassic, study finds      (via sciencedaily.com)     Original source 

An extremely rare collection of 160-million-year-old sea spider fossils from Southern France are closely related to living species, unlike older fossils of their kind.

Biology: Molecular Chemistry: Organic Chemistry
Published

Scientists reveal how sensory protein changes shape with nanometer resolution      (via sciencedaily.com) 

The sensory receptor PIEZO1 changes shape in response to mechanical stimuli. The super high-resolution microscopy technology used in this discovery is a breakthrough in enabling protein structures to be studied within the cellular environment.

Chemistry: Organic Chemistry Engineering: Nanotechnology
Published

Decoding how molecules 'talk' to each other to develop new nanotechnologies      (via sciencedaily.com) 

Scientists recreate and compare molecular languages at the origin of life -- opening new doors for the development of novel nanotechnologies.

Chemistry: Organic Chemistry
Published

Researchers develop versatile and low-cost technology for targeted long-read RNA sequencing      (via sciencedaily.com) 

In a development that could accelerate the discovery of new diagnostics and treatments, researchers have developed a versatile and low-cost technology for targeted sequencing of full-length RNA molecules. The technology, called TEQUILA-seq, is highly cost-effective compared to commercially available solutions for targeted RNA sequencing and can be adapted for different research and clinical purposes.

Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Engineering: Nanotechnology
Published

Gold buckyballs, oft-used nanoparticle 'seeds' are one and the same      (via sciencedaily.com) 

Chemists have discovered that tiny gold 'seed' particles, a key ingredient in one of the most common nanoparticle recipes, are one and the same as gold buckyballs, 32-atom spheres that are cousins of the Nobel Prize-winning carbon buckyballs discovered in 1985.

Chemistry: Organic Chemistry
Published

Weaker transcription factors are better when they work together      (via sciencedaily.com) 

Bioengineers have developed a generalizable method to address 'off-target' binding, a significant problem in the field of synthetic biology. Taking a cue from nature, the researchers showed they could all but eliminate off-target gene activation by designing weak transcription factors that cooperatively assemble.

Chemistry: Organic Chemistry Energy: Technology Geoscience: Environmental Issues
Published

Researchers design efficient iridium catalyst for hydrogen generation      (via sciencedaily.com) 

Proton exchange membrane water electrolyzers converts surplus electric energy into transportable hydrogen energy as a clean energy solution. However, slow oxygen evolution reaction rates and high loading levels of expensive metal oxide catalysts limit its practical feasibility. Now, researchers have developed a new tantalum oxide-supported iridium catalyst that significantly boosts the oxygen evolution reaction speed. Additionally, it shows high catalytic activity and long-term stability in prolonged single cell operation.

Paleontology: Dinosaurs Paleontology: Fossils Paleontology: General
Published

Scientists explore dinosaur 'Coliseum' in Denali National Park      (via sciencedaily.com)     Original source 

Scientists have discovered and documented the largest known single dinosaur track site in Alaska. The site, located in Denali National Park and Preserve, has been dubbed 'The Coliseum' by researchers.

Chemistry: Organic Chemistry Engineering: Nanotechnology
Published

Nanoscale material offers new way to control fire      (via sciencedaily.com) 

High-temperature flames are used to create a wide variety of materials -- but once you start a fire, it can be difficult to control how the flame interacts with the material you are trying to process. Researchers have now developed a technique that utilizes a molecule-thin protective layer to control how the flame's heat interacts with the material -- taming the fire and allowing users to finely tune the characteristics of the processed material.

Anthropology: Early Humans Anthropology: General Paleontology: Climate Paleontology: General
Published

Key role of ice age cycles in early human interbreeding      (via sciencedaily.com)     Original source 

Recent paleogenomic research revealed that interbreeding was common among early human species. However, little was known about when, where, and how often this hominin interbreeding took place. Using paleoanthropological evidence, genetic data, and supercomputer simulations of past climate, a team of international researchers has found that interglacial climates and corresponding shifts in vegetation created common habitats for Neanderthals and Denisovans, increasing their chances for interbreeding and gene flow in parts of Europe and central Asia.

Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Physics: Optics
Published

Chromium replaces rare and expensive noble metals      (via sciencedaily.com)     Original source 

Expensive noble metals often play a vital role in illuminating screens or converting solar energy into fuels. Now, chemists have succeeded in replacing these rare elements with a significantly cheaper metal. In terms of their properties, the new materials are very similar to those used in the past.

Chemistry: Organic Chemistry Computer Science: Quantum Computers Computer Science: Virtual Reality (VR) Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Arrays of quantum rods could enhance TVs or virtual reality devices      (via sciencedaily.com) 

Using scaffolds of folded DNA, engineers assembled arrays of quantum rods with desirable photonic properties that could enable them to be used as highly efficient micro-LEDs for televisions or virtual reality devices.

Biology: Evolutionary Biology: Marine Paleontology: Fossils Paleontology: General
Published

Evolving elegance: Scientists connect beauty and safeguarding in ammonoid shells      (via sciencedaily.com)     Original source 

With 350 million years of evolution culminating in almost two centuries of scientific discourse, a new hypothesis emerges. Researchers propose a new explanation for why ammonoids evolved a highly elaborate, fractal-like geometry within their shells. Their analysis shows that the increasing complexity of shell structures provided a distinct advantage by offering improved protection against predators.

Chemistry: Organic Chemistry Physics: Optics
Published

Researchers 'film' novel catalyst at work      (via sciencedaily.com) 

A novel catalysis scheme enables chemical reactions that were previously virtually impossible. The method is also environmentally friendly and does not require rare and precious metals. The researchers recorded the exact course of the catalysis in a kind of high-speed film. They did this using special lasers that can make processes visible that last only fractions of a billionth of a second. The results allow them to further optimize the catalyst.

Chemistry: Organic Chemistry Physics: General Physics: Optics
Published

Making molecules dance to our tune reveals what drives their first movements      (via sciencedaily.com) 

Bringing ultrafast physics to structural biology has revealed the dance of molecular 'coherence' in unprecedented clarity.