Showing 20 articles starting at article 261
< Previous 20 articles Next 20 articles >
Categories: Chemistry: General, Geoscience: Geomagnetic Storms
Published Researchers create artificial cells that act like living cells
(via sciencedaily.com) Original source Researchers describe the steps they took to manipulate DNA and proteins -- essential building blocks of life -- to create cells that look and act like cells from the body. This accomplishment, a first in the field, has implications for efforts in regenerative medicine, drug delivery systems and diagnostic tools.
Published Laser-treated cork absorbs oil for carbon-neutral ocean cleanup
(via sciencedaily.com) Original source Researchers use laser treatments to transform ordinary cork into a powerful tool for treating oil spills. They tested variations of a fast-pulsing laser treatment, closely examining the nanoscopic structural changes and measuring the ratio of oxygen and carbon in the material, changes in the angles with which water and oil contact the surface, and the material's light wave absorption, reflection, and emission across the spectrum to determine its durability after multiple cycles of warming and cooling. The laser treatments not only help to better absorb oil, but also work to keep water out.
Published More economical and sustainable rechargeable batteries
(via sciencedaily.com) Original source Lithium salts make batteries powerful but expensive. An ultralow-concentration electrolyte based on the lithium salt LiDFOB may be a more economical and more sustainable alternative. Cells using these electrolytes and conventional electrodes have been demonstrated to have high performance. In addition, the electrolyte could facilitate both production and recycling of the batteries.
Published New copper-catalyzed C-H activation strategy
(via sciencedaily.com) Original source Inspired by what human liver enzymes can do, chemists have developed a new set of copper-catalyzed organic synthesis reactions for building and modifying pharmaceuticals and other molecules. The new reactions are expected to be widely used in drug discovery and optimization, as well as in other chemistry-based industries.
Published Development of organic semiconductors featuring ultrafast electrons
(via sciencedaily.com) Original source Collaboration has led to the successful observation of these ultrafast electrons within conducting two-dimensional polymers.
Published Accelerating the discovery of new materials via the ion-exchange method
(via sciencedaily.com) Original source Researchers have unveiled a new means of predicting how to synthesize new materials via the ion-exchange. Based on computer simulations, the method significantly reduces the time and energy required to explore for inorganic materials.
Published Energy scientists unravel the mystery of gold's glow
(via sciencedaily.com) Original source EPFL researchers have developed the first comprehensive model of the quantum-mechanical effects behind photoluminescence in thin gold films; a discovery that could drive the development of solar fuels and batteries.
Published Mess is best: Disordered structure of battery-like devices improves performance
(via sciencedaily.com) Original source The energy density of supercapacitors -- battery-like devices that can charge in seconds or a few minutes -- can be improved by increasing the 'messiness' of their internal structure. Researchers used experimental and computer modelling techniques to study the porous carbon electrodes used in supercapacitors. They found that electrodes with a more disordered chemical structure stored far more energy than electrodes with a highly ordered structure.
Published From defects to order: Spontaneously emerging crystal arrangements in perovskite halides
(via sciencedaily.com) Original source A new hybrid layered perovskite featuring elusive spontaneous defect ordering has been found, report scientists. By introducing specific concentrations of thiocyanate ions into FAPbI3 (FA = formamidinium), they observed that ordered columnar defects appeared in the stacked crystalline layers, taking up one-third of the lattice space. These findings could pave the way to an innovative strategy for adjusting the properties of hybrid perovskites, leading to practical advances in optoelectronics and energy generation.
Published Two-dimensional nanomaterial sets record for expert-defying, counter-intuitive expansion
(via sciencedaily.com) Original source Engineers have developed a record-setting nanomaterial which when stretched in one direction, expands perpendicular to the applied force.
Published Trash to treasure -- researchers turn metal waste into catalyst for hydrogen
(via sciencedaily.com) Original source Scientists have found a way to transform metal waste into a highly efficient catalyst to make hydrogen from water, a discovery that could make hydrogen production more sustainable.
Published Researchers advance pigment chemistry with moon-inspired reddish magentas
(via sciencedaily.com) Original source A researcher who made color history in 2009 with a vivid blue pigment has developed durable, reddish magentas inspired by lunar mineralogy and ancient Egyptian chemistry.
Published Switch to green wastewater infrastructure could reduce emissions and provide huge savings according to new research
(via sciencedaily.com) Original source Researchers have shown that a transition to green wastewater-treatment approaches in the U.S. that leverages the potential of carbon-financing could save a staggering $15.6 billion and just under 30 million tons of CO2-equivalent emissions over 40 years.
Published Researchers study effects of solvation and ion valency on metallopolymers
(via sciencedaily.com) Original source Researchers analyzed the effects of solvation and ion valency on metallopolymers, with implications for critical materials recovery and recycling, and environmental remediation.
Published A new spin on organic shampoo makes it sudsier, longer lasting
(via sciencedaily.com) Original source While there's no regulation in the U.S. for what's in organic shampoos, they tend to contain ingredients perceived as safe or environmentally friendly. However, these 'clean' shampoos separate and spoil faster than those made with synthetic stabilizers and preservatives. Now, researchers demonstrate that a simple process -- spinning organic shampoo at high speeds -- improved the final products' shelf lives and ability to clean hair.
Published Nanoscale movies shed light on one barrier to a clean energy future
(via sciencedaily.com) Original source New research is shedding light on one barrier to a clean energy future: corrosion. Using nanoscale imaging techniques, researchers have captured high-resolution videos of tiny crystals of ruthenium dioxide -- a key ingredient used to produce clean-burning hydrogen -- as they are eaten away by their acidic environment. The research could pave the way to more durable catalysts and dramatically extend the lifetime of devices needed to turn hydrogen green.
Published Discovery brings all-solid-state sodium batteries closer to practical use
(via sciencedaily.com) Original source Researchers have developed a mass synthesis process for sodium-containing sulfides. Mass synthesis of electrolytes with high conductivity and formability is key to the practical use of all-solid-state sodium batteries, thought to be safer than lithium-ion batteries and less expensive, as sodium is far more plentiful than lithium.
Published New strategy for assessing the applicability of reactions
(via sciencedaily.com) Original source Chemists show that a machine-based method prevents widespread 'bias' in chemical publications.
Published Revolutionary molecular device unleashes potential for targeted drug delivery and self-healing materials
(via sciencedaily.com) Original source In a new breakthrough that could revolutionise medical and material engineering, scientists have developed a first-of-its-kind molecular device that controls the release of multiple small molecules using force.
Published New device gathers, stores electricity in remote settings
(via sciencedaily.com) Original source Wirelessly connected devices perform an expanding array of applications, such as monitoring the condition of machinery and remote sensing in agricultural settings. These applications hold much potential for improving the efficiency, but how do you power these devices where reliable electrical sources are not available? Research points to a possible solution in the form of a novel type of battery.