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Categories: Biology: Genetics, Chemistry: Biochemistry

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Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Heat flows the secret to order in prebiotic molecular kitchen      (via sciencedaily.com)     Original source 

Biophysicists have demonstrated how heat flows through rock fissures could have created the conditions for the emergence of life.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Energy: Technology Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geology
Published

'Tug of war' tactic enhances chemical separations for critical materials      (via sciencedaily.com)     Original source 

Lanthanide elements are important for clean energy and other applications. To use them, industry must separate mixed lanthanide sources into individual elements using costly, time-consuming, and waste-generating procedures. An efficient new method can be tailored to select specific lanthanides. The technique combines two substances that do not mix and that prefer different types of lanthanides. The process would allow for smaller equipment, less use of chemicals, and less waste production.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

New tools reveal how genes work and cells organize      (via sciencedaily.com)     Original source 

Researchers have discovered how certain proteins can attach to special structures in RNA, called G-quadruplexes. Additionally, they have developed computational tools capable of predicting these protein-RNA interactions. The newfound ability to predict these interactions can help future work in understanding molecular pathways in the cell and pave the way for developing drugs targeting these RNA G-quadruplex binding proteins, that are found to be involved in disease such as cancer.

Biology: Biochemistry Biology: Botany Biology: Evolutionary Biology: General Biology: Genetics Ecology: Nature Ecology: Trees
Published

New sunflower family tree reveals multiple origins of flower symmetry      (via sciencedaily.com)     Original source 

A new sunflower family tree used skimmed genomes to increase the number of species sampled, revealing that flower symmetry evolved multiple times independently, a process called convergent evolution, among the members of this large plant family.

Biology: Biochemistry Biology: General Chemistry: Biochemistry Chemistry: General
Published

Developing a vaccine for the 'zombie drug' xylazine      (via sciencedaily.com)     Original source 

Chemical biologists design an early 'proof-of-concept' vaccine that could lead to the first effective treatment of xylazine overdose in people.

Chemistry: Biochemistry Engineering: Robotics Research Offbeat: Computers and Math Offbeat: General
Published

'Smart swarms' of tiny robots inspired by natural herd mentality      (via sciencedaily.com)     Original source 

Researchers gave nanorobots a trait called adaptive time delay, which allows them to better work together.

Chemistry: Biochemistry Energy: Alternative Fuels Environmental: General Geoscience: Environmental Issues
Published

Machine learning enables viability of vertical-axis wind turbines      (via sciencedaily.com)     Original source 

Researchers have used a genetic learning algorithm to identify optimal pitch profiles for the blades of vertical-axis wind turbines, which despite their high energy potential, have until now been vulnerable to strong gusts of wind.

Chemistry: Biochemistry Energy: Batteries Energy: Technology
Published

Drawing inspiration from plants: A metal-air paper battery for wearable devices      (via sciencedaily.com)     Original source 

Drawing inspiration from the way plants breathe, a group of researchers has created a paper-based magnesium-air battery that can be used in GPS sensors or pulse oximeter sensors. Taking advantage of paper's recyclability and lightweight nature, the engineered battery holds promise for a more environmentally friendly source of energy.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

New discovery unravels malaria invasion mechanism      (via sciencedaily.com)     Original source 

A recent breakthrough sheds light on how the malaria parasite, Plasmodium falciparum, invades human red blood cells. The study reveals the role of a sugar called sialic acid in this invasion process. The findings have major implications for malaria vaccine and drug development.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Molecular
Published

First view of centromere variation and evolution      (via sciencedaily.com)     Original source 

A genomic study of human and selected nonhuman primate centromeres has revealed their unimaginable diversity and speed of evolutionary change. Although centromeres are vital to proper cell replication by assuring faithful transmision of genetic materials when cells divide, the complexity of their genomic organization had been almost impossible to study. The lack of centromere sequences hindered exploration of how these regions help maintain genetic integrity. Now, advanced technologies have shown scientists how greatly centromeres differ in size and structure.

Chemistry: Biochemistry
Published

Wound treatment gel fights the battle against antibacterial resistance      (via sciencedaily.com)     Original source 

Polymer-based hydrogels are used to treat skin ailments and in tissue engineering because of their ability to retain water, deliver drugs into wounds, and biodegrade. However, they are complicated to manufacture and not very resilient to external forces like rubbing against clothing, sheets, or wound dressings. Scientists have now created a hydrogel enhanced with the amino acid polylysine and blood plasma that is easier to synthesize, contains natural antibiotic properties, and promotes cell growth.

Chemistry: Biochemistry Energy: Technology Engineering: Nanotechnology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Researchers discover dual topological phases in an intrinsic monolayer crystal      (via sciencedaily.com)     Original source 

An international team working with single-atom thick crystals found TaIrTe4's transition between the two distinct topological states of insulation and conduction. The material exhibited zero electrical conductivity within its interior, while its boundaries remain conductive. The team's investigation determined that the two topological states stem from disparate origins. The novel properties can serve as a promising platform for exploring exotic quantum phases and electromagnetism.

Chemistry: Biochemistry
Published

Cellphone compass can measure tiny concentrations of compounds important for human health      (via sciencedaily.com)     Original source 

Nearly every modern cellphone has a built-in compass, or magnetometer, that detects the direction of Earth's magnetic field, providing critical information for navigation. Now a team of researchers has developed a technique that uses an ordinary cellphone magnetometer for an entirely different purpose -- to measure the concentration of glucose, a marker for diabetes, to high accuracy.

Chemistry: Biochemistry
Published

Researchers produce grafts that replicate the human ear      (via sciencedaily.com)     Original source 

Using state-of-the-art tissue engineering techniques and a 3D printer, researchers have assembled a replica of an adult human ear that looks and feels natural. The study offers the promise of grafts with well-defined anatomy and the correct biomechanical properties for those who are born with a congenital malformation or who lose an ear later in life.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology
Published

When inequality is more than 'skin-deep': Social status leaves traces in the epigenome of spotted hyenas in Tanzania      (via sciencedaily.com)     Original source 

A research consortium provides evidence that social behavior and social status are reflected at the molecular level of gene activation (epigenome) in juvenile and adult free-ranging spotted hyenas. They analyzed non-invasively collected gut epithelium samples from both high-ranking and low-ranking female hyenas and showed that rank differences were associated with epigenetic signatures of social inequality, i.e., the pattern of activation or switching off of genes that regulate important physiological processes such as energy conversion and immune response in several genome regions.