Showing 20 articles starting at article 381

< Previous 20 articles        Next 20 articles >

Categories: Chemistry: Organic Chemistry, Energy: Fossil Fuels

Return to the site home page

     (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.

     (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.

     (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.

     (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.

     (via sciencedaily.com) 

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

     (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.

     (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.

     (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.

     (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.

     (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.

     (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.

     (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.

     (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.

     (via sciencedaily.com) 

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

     (via sciencedaily.com) 

Industrial biocatalysis with enzymes is deemed to be a 'game changer' in the development of a sustainable chemical industry. Enzymes can be used to synthesize an impressive range of complex molecules, including pharmaceutical substances, under environmentally compatible conditions. Researchers have now developed a new class of materials by producing enzyme foams of tremendous stability and activity.

     (via sciencedaily.com) 

By some estimates, the human nose can detect up to a trillion different smells with its hundreds of scent receptors. But even just catching a quick whiff of certain chemicals known as nerve agents can be lethal, even in tiny amounts. Researchers have now developed a sensitive and selective nerve gas sensor using these human scent receptors. It reliably detected a substitute for deadly sarin gas in simulated tests.

     (via sciencedaily.com)     Original source 

Gold (Au)-based electrocatalysts used for hydrogen production via water electrolysis exhibit high chemical stability but low hydrogen evolution reaction (HER) activity. Alloying them with nickel (Ni) can improve their HER activity. A recent study investigated the HER activity and surface properties of AuNi alloy prepared on single crystal Au surfaces, revealing the atomic structural changes and surface sites responsible for enhanced HER activity of AuNi/Au catalyst during electrolysis.

     (via sciencedaily.com)     Original source 

A new study suggests that Cytochromes P450 (CYP450s) enzymes can sense and respond to stimuli, acting like soft robots in living systems.

     (via sciencedaily.com)     Original source 

New research into public attitudes towards alternative shipping fuels shows public backing for biofuel and hydrogen. The study also found that nuclear was preferred to the heavy fuel oil (HFO) currently used in the global shipping industry, although both were perceived negatively. Ammonia had the least public support.

     (via sciencedaily.com)     Original source 

A water purification system separates out salt and other unnecessary particles with an electrified version of dialysis. Successfully applied to wastewater with planned expansion into rivers and seas, the method saves money and saps 90% less energy than its counterparts.