Showing 20 articles starting at article 1061

< Previous 20 articles        Next 20 articles >

Categories: Chemistry: Biochemistry, Geoscience: Landslides

Return to the site home page

     (via sciencedaily.com)     Original source 

Researchers have designed a tabletop-sized vaccine printer that could be scaled up to produce hundreds of vaccine doses in a day and deployed anywhere vaccines are needed. The vaccine doses are contained within microneedle patches that can be stored long-term at room temperature and applied to the skin, avoiding the need for injections.

     (via sciencedaily.com)     Original source 

A new smart material is activated by both heat and electricity, making it the first ever to respond to two different stimuli.

     (via sciencedaily.com)     Original source 

Scientists have demonstrated nanowire networks can exhibit both short- and long-term memory like the human brain.

     (via sciencedaily.com)     Original source 

Despite the increasing use of genomic sequencing in clinical practice, interpreting rare genetic mutations, even among well-studied disease genes, remains difficult. Current predictive models are useful for interpreting those mutations, but they are prone to misclassify those that do not cause diseases, contributing to false positives.

     (via sciencedaily.com)     Original source 

A new article shows how the choice of network representation can influence the observed effects. Their work focuses on the phenomenon of synchronization, which emerges in systems from circadian clocks to vascular networks.

     (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.

     (via sciencedaily.com)     Original source 

An AI strategy proven adept at board games like Chess and Go, reinforcement learning, has now been adapted for a powerful protein design program. The results show that reinforcement learning can do more than master board games. When trained to solve long-standing puzzles in protein science, the software excelled at creating useful molecules. In one experiment, proteins made with the new approach were found to be more effective at generating useful antibodies in mice than were previous methods. If this method is applied to the right research problems, it likely could accelerate progress in a variety of scientific fields.

     (via sciencedaily.com)     Original source 

A new machine-learning system can generate protein designs with certain structural features, and which do not exist in nature. These proteins could be utilized to make materials that have similar mechanical properties to existing materials, like polymers, but which would have a much smaller carbon footprint.

     (via sciencedaily.com)     Original source 

Mechanically responsive molecular crystals are extremely useful in soft robotics, which requires a versatile actuation technology. Crystals driven by the photothermal effect are particularly promising for achieving high-speed actuation. However, the response (bending) observed in these crystals is usually small. Now, scientists address this issue by inducing large resonated natural vibrations in anisole crystals with UV light illumination at the natural vibration frequency of the crystal.

     (via sciencedaily.com)     Original source 

There are high expectations that quantum computers may deliver revolutionary new possibilities for simulating chemical processes. This could have a major impact on everything from the development of new pharmaceuticals to new materials. Researchers have now used a quantum computer to undertake calculations within a real-life case in chemistry.

     (via sciencedaily.com)     Original source 

Researchers find that when immunostimulatory drugs called imidazoquinolines are delivered using specialized bottlebrush nanoparticles, the drugs provoke the immune system to attack tumors while eliminating the side effects that occur when the drugs are given on their own.

     (via sciencedaily.com)     Original source 

Small interfering RNAs (siRNAs) are novel therapeutics that can be used to treat a wide range of diseases. This has led to a growing demand for selective, efficient, and safe ways of delivering siRNA in cells. Now, in a cooperation between the Universities of Amsterdam and Leiden, researchers have developed dedicated molecular nanocages for siRNA delivery. In a paper just out in the Journal Chem they present nanocages that are easy to prepare and display tuneable siRNA delivery characteristics.

     (via sciencedaily.com)     Original source 

Perturbing electron spins in a magnet usually results in excitations called 'spin waves' that ripple through the magnet like waves moving across the surface of a pond that's been struck by a pebble. Physicists have now discovered dramatically different excitations called 'spin excitons' that can also 'ripple' through a nickel-based magnet as a coherent wave.

     (via sciencedaily.com)     Original source 

Researchers are studying radical new ways to improve solar power and provide more options for the industry to explore. Chemists are proposing to make solar cells using not silicon, but an abundantly available natural material called molybdenum disulfide. Using a creative combination of photoelectrochemical and spectroscopic techniques, the researchers conducted a series of experiments showing that extremely thin films of molybdenum disulfide display unprecedented charge carrier properties that could someday drastically improve solar technologies.

     (via sciencedaily.com)     Original source 

Chronic wounds are a major health problem for diabetic patients and the elderly -- in extreme cases they can even lead to amputation. Using electric stimulation, researchers have developed a method that speeds up the healing process, making wounds heal three times faster.

     (via sciencedaily.com)     Original source 

Researchers have developed the first cardiac implant made from graphene, a two-dimensional super material with ultra-strong, lightweight and conductive properties. Similar in appearance to a child's temporary tattoo, the new graphene 'tattoo' implant is thinner than a single strand of hair yet still functions like a classical pacemaker.

     (via sciencedaily.com)     Original source 

Researchers have created a digital topographical map of the cardiac sympathetic neural network, the region that controls the body's heart rate and its 'fight-or-flight' response. They hope this map will eventually serve as a guide to treat cardiovascular conditions using bioelectronic devices.

     (via sciencedaily.com)     Original source 

The high seas have been colonized by a surprising number of coastal marine invertebrate species, which can now survive and reproduce in the open ocean, contributing strongly to the floating community composition. Researchers found coastal species, representing diverse taxonomic groups and life history traits, in the eastern North Pacific Subtropical Gyre on over 70 percent of the plastic debris they examined. Further, the debris carried more coastal species than open ocean species.

     (via sciencedaily.com)     Original source 

Microplastics (MPs), plastic debris smaller than 5 mm, indirectly harm the environment. They are traditionally collected and removed from water by filtering through meshes, which is inefficient. Researchers have now developed a high-enrichment microfluidic device that utilizes acoustic focusing to collect and remove 10--200 ?m MPs from wastewater without recirculation. Its collection rates and enrichment ratios ranged approximately from 70--90% and 50--100, respectively on test samples.

     (via sciencedaily.com)     Original source 

The new smart sensor uses embedded information to detect motion in a single video frame.