Showing 20 articles starting at article 541

< Previous 20 articles        Next 20 articles >

Categories: Biology: Botany, Chemistry: General

Return to the site home page

Chemistry: General Chemistry: Inorganic Chemistry Engineering: Graphene Engineering: Nanotechnology Physics: General
Published

Graphene research: Numerous products, no acute dangers found by study      (via sciencedaily.com)     Original source 

Graphene is an enormously promising material. It consists of a single layer of carbon atoms arranged in a honeycomb pattern and has extraordinary properties: exceptional mechanical strength, flexibility, transparency and outstanding thermal and electrical conductivity. If the already two-dimensional material is spatially restricted even more, for example into a narrow ribbon, controllable quantum effects can be created. This could enable a wide range of applications, from vehicle construction and energy storage to quantum computing.

Biology: Botany Biology: Zoology Ecology: Animals Ecology: Invasive Species Ecology: Nature Ecology: Trees Environmental: Ecosystems
Published

Modeling tree masting      (via sciencedaily.com)     Original source 

The effects of a phenomenon called tree masting on ecosystems and food webs can be better understood thanks to new theoretical models validated by real world observations.

Biology: Biochemistry Biology: Cell Biology Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

An environmentally friendly way to turn seafood waste into value-added products      (via sciencedaily.com)     Original source 

Reduce, reuse, recycle, and repurpose: These are all ways we can live more sustainably. One tricky aspect of recycling, though, is that sometimes the recycling process is chemically intensive, and this is the case for recycling one of the world's most abundant materials -- chitin. Researchers have tackled this problem and found a way to sustainably recover chitin from seafood waste.

Chemistry: General Chemistry: Inorganic Chemistry Energy: Alternative Fuels Engineering: Nanotechnology Environmental: General Geoscience: Geochemistry Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Revolutionary breakthrough in solar energy: Most efficient QD solar cells      (via sciencedaily.com)     Original source 

A research team has unveiled a novel ligand exchange technique that enables the synthesis of organic cation-based perovskite quantum dots (PQDs), ensuring exceptional stability while suppressing internal defects in the photoactive layer of solar cells.

Biology: Biochemistry Biology: Microbiology Chemistry: Biochemistry Chemistry: General Engineering: Nanotechnology
Published

Engineering a coating for disease-free produce      (via sciencedaily.com)     Original source 

Texas A&M researchers combine food-grade wax with essential oils to defend produce from bacteria.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Photosynthetic mechanism of purple sulfur bacterium adapted to low-calcium environments      (via sciencedaily.com)     Original source 

Purple sulfur bacteria (PSB) convert light energy into chemical energy through photosynthesis. Interestingly, certain species can photosynthesize even in environments with low-calcium levels. Using cryo-electron microscopy, researchers unveiled the structure of light-harvesting complexes and elucidated the mechanism that facilitates photosynthesis under low-calcium conditions.

Biology: Biochemistry Biology: Cell Biology Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry
Published

It's the spin that makes the difference      (via sciencedaily.com)     Original source 

Biomolecules such as amino acids and sugars occur in two mirror-image forms -- in all living organisms, however, only one is ever found. Why this is the case is still unclear. Researchers have now found evidence that the interplay between electric and magnetic fields could be at the origin of this phenomenon.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Thermodynamics Energy: Alternative Fuels Energy: Technology Environmental: General Geoscience: Geochemistry
Published

Physicists develop more efficient solar cell      (via sciencedaily.com)     Original source 

Physicists have used complex computer simulations to develop a new design for significantly more efficient solar cells than previously available. A thin layer of organic material, known as tetracene, is responsible for the increase in efficiency.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Plastic recycling with a protein anchor      (via sciencedaily.com)     Original source 

Polystyrene is a widespread plastic that is essentially not recyclable when mixed with other materials and is not biodegradable. A research team has now introduced a biohybrid catalyst that oxidizes polystyrene microparticles to facilitate their subsequent degradation. The catalyst consists of a specially constructed 'anchor peptide' that adheres to polystyrene surfaces and a cobalt complex that oxidizes polystyrene.

Biology: Biochemistry Biology: Botany Biology: General Biology: Microbiology Biology: Zoology Ecology: Endangered Species Ecology: Nature
Published

Pollinator's death trap turns into nursery      (via sciencedaily.com)     Original source 

In a group of plants that is famous for luring its pollinators into a death trap, one species offers its flowers as a nursery in exchange. The discovery blurs the line between mutualism and parasitism and sheds light on the evolution of complex plant-insect interactions.

Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Advanced artificial photosynthesis catalyst uses CO2 more efficiently to create biodegradable plastics      (via sciencedaily.com)     Original source 

A research team that had previously succeeded in synthesizing fumaric acid using bicarbonate and pyruvic acid, and carbon dioxide collected directly from the gas phase as one of the raw materials, has now created a new photosensitizer and developed a new artificial photosynthesis technology, effectively doubling the yield of fumaric acid production compared to the previous method. The results of this research are expected to reduce carbon dioxide emissions and provide an innovative way to produce biodegradable plastics while reusing waste resources.

Biology: Botany Biology: General Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Trees Environmental: Ecosystems Environmental: General
Published

Reforestation programs could threaten vast area of tropical grasslands      (via sciencedaily.com)     Original source 

New research reveals the scale of inappropriate reforestation projects across Africa. A new study reveals that an area the size of France is threatened by forest restoration initiatives, such as the AFR100 initiative (African Forest Landscape Restoration Initiative), due to inappropriate restoration in the form of tree-planting.

Chemistry: General Chemistry: Inorganic Chemistry Energy: Batteries Energy: Technology Environmental: General Geoscience: Earth Science Geoscience: Geochemistry
Published

Discovery of new Li ion conductor unlocks new direction for sustainable batteries      (via sciencedaily.com)     Original source 

Researchers have discovered a solid material that rapidly conducts lithium ions. Consisting of non-toxic earth-abundant elements, the new material has high enough Li ion conductivity to replace the liquid electrolytes in current Li ion battery technology, improving safety and energy capacity. The research team have synthesized the material in the laboratory, determined its structure and demonstrated it in a battery cell.

Chemistry: General Chemistry: Inorganic Chemistry Offbeat: General Physics: General
Published

First-ever atomic freeze-frame of liquid water      (via sciencedaily.com)     Original source 

Scientists report the first look at electrons moving in real-time in liquid water; the findings open up a whole new field of experimental physics.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry
Published

With just a little electricity, researchers boost common catalytic reactions      (via sciencedaily.com)     Original source 

A simple new technique could boost the efficiency of some key chemical processing, by up to a factor of 100,000, researchers report. The reactions are at the heart of petrochemical processing, pharmaceutical manufacturing, and many other industrial chemical processes.

Chemistry: Biochemistry Chemistry: General Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Trapping sulfate to benefit health, industry and waterways      (via sciencedaily.com)     Original source 

Scientists have developed a new method to measure and remove sulfate from water, potentially leading to cleaner waterways and more effective nuclear waste treatments.

Biology: Biochemistry Biology: Botany Biology: General Ecology: General Ecology: Research Environmental: Ecosystems Environmental: Water
Published

Researchers shed light on river resiliency to flooding      (via sciencedaily.com)     Original source 

Researchers have completed one of the most extensive river resilience studies, examining how river ecosystems recover following floods. They developed a novel modeling approach that used data from oxygen sensors placed in rivers to estimate daily growth in aquatic plants and algae. The researchers then modeled the algal and plant biomass in 143 rivers across the contiguous U.S. to quantify what magnitude of flooding disturbs the biomass and how long the rivers take to recover from floods. Increased understanding of rivers' resiliency is important to maintaining healthy rivers, as human actions can affect flood regimes and change the conditions in rivers for other aquatic life that may rely on algae and plants as a food source.

Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Ecology: Endangered Species Geoscience: Geochemistry
Published

Asexual propagation of crop plants gets closer      (via sciencedaily.com)     Original source 

When the female gametes in plants become fertilized, a signal from the sperm activates cell division, leading to the formation of new plant seeds. This activation can also be deliberately triggered without fertilization, as researchers have shown. Their findings open up new avenues for the asexual propagation of crop plants.

Chemistry: Biochemistry Chemistry: General
Published

Do AI-driven chemistry labs actually work? New metrics promise answers      (via sciencedaily.com)     Original source 

The fields of chemistry and materials science are seeing a surge of interest in 'self-driving labs,' which make use of artificial intelligence and automated systems to expedite research and discovery. Researchers are now proposing a suite of definitions and performance metrics that will allow researchers, non-experts, and future users to better understand both what these new technologies are doing and how each technology is performing in comparison to other self-driving labs.