Showing 20 articles starting at article 681

< Previous 20 articles        Next 20 articles >

Categories: Chemistry: Biochemistry, Geoscience: Landslides

Return to the site home page

     (via sciencedaily.com)     Original source 

Materials scientists developed a fast, low-cost, scalable method to make covalent organic frameworks (COFs), a class of crystalline polymers whose tunable molecular structure, large surface area and porosity could be useful in energy applications, semiconductor devices, sensors, filtration systems and drug delivery.

     (via sciencedaily.com)     Original source 

Researchers developed a way to quickly calculate the transition state structure of a chemical reaction, using machine-learning models.

     (via sciencedaily.com)     Original source 

Scientists show that breathing may be used to control a wearable extra robotic arm in healthy individuals, without hindering control of other parts of the body.

     (via sciencedaily.com)     Original source 

A new study advances fundamental knowledge about the role of solvation in ion binding and presents a new pathway for electrochemically controlling ion selectivity.

     (via sciencedaily.com)     Original source 

Protein-splitting enzymes play an important role in many physiological processes. Such proteases are generally present in an inactive state, only becoming activated under certain conditions. Some are linked to diseases like infections or cancer, making it important to have methods that can selectively detect active proteases. Scientists have introduced a new class of protease-activity sensors: gold nanoparticles equipped with peptide DNA.

     (via sciencedaily.com)     Original source 

Oceans cover most of Earth's surface and support a staggering number of lifeforms, but they're also home to a dilute population of uranium ions. And -- if we can get these particular ions out of the water -- they could be a sustainable fuel source to generate nuclear power. Researchers have now developed a material to use with electrochemical extraction that attracts hard-to-get uranium ions from seawater more efficiently than existing methods.

     (via sciencedaily.com)     Original source 

Over the years, scientists have proposed many novel molecular systems for photoinduced electron transfer. Researchers have now developed a copolymer-conjugated nanocatalytic system that can drive efficient photoinduced electron transfer. They employed a temperature-responsive ternary random copolymer and coupled it to platinum nanoparticles. By enabling dynamic electron transfer and driving photoinduced hydrogen generation, this innovation can have far-reaching implications for artificial photosynthesis, electrochemical reactions, macromolecular recognition, and bio-inspired soft materials.

     (via sciencedaily.com)     Original source 

Self-propelled nanoparticles could potentially advance drug delivery and lab-on-a-chip systems -- but they are prone to go rogue with random, directionless movements. Now, an international team of researchers has developed an approach to rein in the synthetic particles.

     (via sciencedaily.com)     Original source 

Understanding the risk of compound energy droughts -- times when the sun doesn't shine and the wind doesn't blow -- will help grid planners understand where energy storage is needed most.

     (via sciencedaily.com)     Original source 

Train accidents could be caused by solar storms switching signalling from red to green according to new research examining the impact of space weather. Solar storms can trigger powerful magnetic disturbances on Earth, creating geomagnetically induced currents which could potentially interfere with electricity transmission and distribution grids. A study of two rail lines showed that more serious 'wrong side' failures (red to green) could occur with a weaker solar storm than for 'right side' failures, posing a serious risk which the industry needs to take on board.  

     (via sciencedaily.com)     Original source 

A new article covering an overview and trends of plastic production and degradation technology using microorganisms has been published. Eco-friendly and sustainable plastic production and degradation technology using microorganisms as a core technology to achieve a plastic circular economy was presented.

     (via sciencedaily.com)     Original source 

A single strand of newly developed fiber has the flexibility of cotton and the electric conductivity of the polymer, polyaniline. The new material has shown good potential for wearable e-textiles. The researchers tested the fibers with a system that powered an LED light and another that sensed ammonia gas. While intrinsically conductive, polyaniline is brittle and by itself, cannot be made into a fiber for textiles. To solve this, the researchers dissolved cotton cellulose from recycled t-shirts into a solution and the conductive polymer into another separate solution.

     (via sciencedaily.com)     Original source 

The electrical properties of cancer cells can provide information on their cancer type, state, and drug resistance. However, conventional platforms to measure these properties are complex and can only analyze a few cells. Researchers have successfully developed a high-throughput device that measures the electrical properties of cancer cells through continuous flow electrorotation. The new platform offers a high degree of automation and can simultaneously analyze several cells.

     (via sciencedaily.com)     Original source 

In mice and human cell cultures, researchers showed that novel nanoparticles can deliver a potential therapy for inflammation in the brain, a prominent symptom in Alzheimer's disease.

     (via sciencedaily.com)     Original source 

Crustacean and seaweed materials combined in a unique way could provide a sustainable alternative to plastic films.

     (via sciencedaily.com)     Original source 

Kerry Vahala and collaborators from UC Santa Barbara have found a unique solution to an optics problem.

     (via sciencedaily.com)     Original source 

In hopes of producing concrete structures that can repair their cracks, researchers are putting a new twist on an old trick for improving the durability of concrete. Fiber reinforcement has been around since the first masons were mixing horsehair into their mud. But this research team is taking this method to the next level by turning reinforcing fibers into a living tissue system that rushes concrete-healing bacteria to the site of cracks to repair the damage.

     (via sciencedaily.com)     Original source 

New miniature virtual reality (VR) goggles provide more immersive experiences for mice living in laboratory settings. By more faithfully simulating natural environments, the researchers can more accurately and precisely study the neural circuitry that underlies behavior. Compared to current state-of-the-art systems, which simply surround mice with computer or projection screens, the new goggles provide a leap in advancement.

     (via sciencedaily.com)     Original source 

Antibodies hold promise as therapeutic agents. However, their tendency to aggregate poses significant challenges to drug development. In a groundbreaking study, researchers now provide novel insights into the structure formed due to 3D domain swapping of the antibody light chain, the part of the antibody contributing to antigen binding. Their findings are expected to lead to improvements in antibody quality and the development of novel drugs.

     (via sciencedaily.com)     Original source 

Researchers have developed a technique based on nanobody technology to prevent liver inflammation. Nanobodies, or single-domain antibodies, are fragments of antibodies that can selectively bind to a specific antigen. Because they are simple to produce and react in very specific ways, they are often used in various biotechnological, therapeutic and diagnostic applications.