Showing 20 articles starting at article 821
< Previous 20 articles Next 20 articles >
Categories: Chemistry: General, Energy: Nuclear
Published Scintillating science: Researchers improve materials for radiation detection and imaging technology
(via sciencedaily.com) Original source A team of researchers has improved a new generation of organic-inorganic hybrid materials that can improve image quality in X-ray machines, CT scans and other radiation detection and imaging technologies.
Published Tiny microbes could brew big benefits for green biomanufacturing
(via sciencedaily.com) Original source Scientists find new route in bacteria to decarbonize industry. The discovery could reduce greenhouse gas emissions from the manufacturing of fuels, drugs, and chemicals. A research team has engineered bacteria to produce new-to-nature carbon products that could provide a powerful route to sustainable biochemicals.
Published New catalyst transforms carbon dioxide into sustainable byproduct
(via sciencedaily.com) Original source -Electrocatalyst achieves record-breaking selectivity toward desired product, a key step in expanding production -Acetic acid, found in vinegar, is traditionally extracted from fossil fuels for use in paint and other product feedstock.
Published Single-molecule valve: Breakthrough in nanoscale control
(via sciencedaily.com) Original source A research group has succeeded in regulating the flow of single molecules in solution by opening and closing the nanovalve mounted on the nanofluidic device by applying external pressure. The research group fabricated a device with a ribbon-like, thin, soft glass sheet on the top, and at the bottom a hard glass substrate having nanochannels and nanovalve seats. By applying external pressure to the soft glass sheet to open and close the valve, they succeeded in directly manipulating and controlling the flow of individual molecules in solution. They also observed an effect of fluorescence signal amplification when single fluorescent molecules are confined in the tiny nanospace inside the valve. The effect can be ascribed to the nanoconfinement, which suppresses the random motion of the molecules.
Published Engineers tap into good vibrations to power the Internet of Things
(via sciencedaily.com) Original source In a world hungry for clean energy, engineers have created a new material that converts the simple mechanical vibrations all around us into electricity to power sensors in everything from pacemakers to spacecraft.
Published Upcycling method turns textile trash to functional coatings
(via sciencedaily.com) Original source In an effort to make textiles more sustainable, a new method allows researchers to break old clothing down chemically and reuse polyester compounds to create fire resistant, anti-bacterial or wrinkle-free coatings that could then be applied to clothes and fabrics.
Published Self-folding origami machines powered by chemical reaction
(via sciencedaily.com) Original source Scientists have harnessed chemical reactions to make microscale origami machines self-fold -- freeing them from the liquids in which they usually function, so they can operate in dry environments and at room temperature.
Published Better understanding soft material behavior
(via sciencedaily.com) Original source The mechanics behind the collapse of soft materials structure have befuddled researchers for decades. In a new study, researchers uncover a metric that finally correlates microscopic-level processes with what is seen at the macroscopic level.
Published Previously unknown intercellular electricity may power biology
(via sciencedaily.com) Original source Researchers have discovered that the electrical fields and activity that exist through a cell's membrane also exist within and around another type of cellular structure called biological condensates. Like oil droplets floating in water, these structures exist because of differences in density. Their foundational discovery could change the way researchers think about biological chemistry. It could also provide a clue as to how the first life on Earth harnessed the energy needed to arise.
Published Engineers 'grow' atomically thin transistors on top of computer chips
(via sciencedaily.com) Original source A new method enables 2D-material semiconductor transistors to be directly integrated onto a fully fabricated 8-inch silicon wafer, which could enable a new generation of transistor technology, denser device integration, new circuit architectures, and more powerful chips.
Published Pulling the plug on viral infections: CRISPR isn't just about cutting
(via sciencedaily.com) Original source CRISPR claimed scientific fame for its ability to quickly and accurately edit genes. But, at the core, CRISPR systems are immune systems that help bacteria protect themselves from viruses. A new study reveals a previously unrecognized player in one such system -- a membrane protein that enhances anti-viral defense. According to study authors, the finding upends the idea that CRISPR systems mount their defense only by degrading RNA and DNA in cells.
Published Using microbes to get more out of mining waste
(via sciencedaily.com) Original source Researchers have developed a new mining technique which uses microbes to recover metals and store carbon in the waste produced by mining. Adopting this technique of reusing mining waste, called tailings, could transform the mining industry and create a greener and more sustainable future.
Published Is the ocean a solution for ushering in the era of environmentally friendly energy?
(via sciencedaily.com) Original source Researchers confirm the superiority of seawater batteries that use chelating agents.
Published How spheres become worms
(via sciencedaily.com) Original source A previously unknown form of hydrogel formation has been elucidated: chemists found unusual interactions between polymers.
Published Chemists tackle the tough challenge of recycling mixed plastics
(via sciencedaily.com) Original source Polymer chemists have been finding ways to tackle the environmental problems humans have created with plastics waste. Now, a team has come up with fundamental new chemistry that seeds a creative solution to the challenge of recycling mixed-use plastics.
Published New chemistry can extract virgin-grade materials from wind turbine blades in one process
(via sciencedaily.com) Original source Researchers have developed a chemical process that can disassemble the epoxy composite of wind turbine blades and simultaneously extract intact glass fibers as well as one of the epoxy resin's original building blocks in a high quality. The recovered materials could potentially be used in the production of new blades.
Published CO2 recycling: What is the role of the electrolyte?
(via sciencedaily.com) Original source The greenhouse gas carbon dioxide can be converted into useful hydrocarbons by electrolysis. The design of the electrolysis cell is crucial in this process. The so-called zero-gap cell is particularly suitable for industrial processes. But there are still problems: The cathodes clog up quickly.
Published Researchers team up with national lab for innovative look at copper reactions
(via sciencedaily.com) Original source Researchers are working to get a better look at how peroxides on the surface of copper oxide promote the oxidation of hydrogen but inhibit the oxidation of carbon monoxide, allowing them to steer oxidation reactions.
Published Greener batteries
(via sciencedaily.com) Original source Our modern rechargeable batteries, such as lithium-ion batteries, are anything but sustainable. One alternative is organic batteries with redox-organic electrode materials (OEMs), which can be synthesized from natural 'green' materials. A team has now introduced a new OEM for aqueous organic high-capacity batteries that can be easily and cheaply recycled.
Published Synthetic biology meets fashion in engineered silk
(via sciencedaily.com) Original source Engineers developed a method to create synthetic spider silk at high yields while retaining strength and toughness using mussel foot proteins.