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Micro-RNA blocks the effect of insulin in obesity

(PhysOrg.com) -- German researchers have discovered a new mechanism that leads to the development of type 2 diabetes in obesity.

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The art of molecular carpet-weaving: 2-D networks from boron acids

Stable two-dimensional networks of organic molecules are important components in various nanotechnology processes. However, producing these networks, which are only one atom thick, in high quality and...

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Study reveals how ribosomes override their blockades

Ribosomes are "protein factories" in the cells of all living things. They produce proteins based on existing genetic codes stored on special nucleic acid molecules. These molecules, also called...

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Genetically engineered cow yields hypoallergenic, high-protein milk

(Phys.org)—AgResearch Institute scientists in New Zealand have bred the first cow in the world to produce high protein milk that may be hypo-allergenic.

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Computational study of human hair provides insights into structure of its...

Human hair is a complex, multi-layered material, the composition of which is only partly established. Hair fibers are sheathed in a thin protective coating called the epicuticle, but despite its...

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DNAzymes and gold nanoparticles: A colorimetric assay for diagnostics in the...

Infectious diseases such as malaria and syphilis can be diagnosed rapidly and reliably in the field by using a simple test developed by Canadian scientists. The test is based on the use of DNAzymes and...

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Enzymes allow DNA to swap information with exotic molecules

(Phys.org) —The discovery of the Rosetta Stone resolved a longstanding puzzle, permitting the translation of Egyptian hieroglyphs into Ancient Greek. John Chaput, a researcher at Arizona State...

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Antioxidant with a long shelf life

(Phys.org) —Scientists from ETH Zurich have developed a nanomaterial that protects other molecules from oxidation. Unlike many such active substances in the past, the ETH-Zurich researchers'...

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Counting small RNA in disease-causing organisms

Small molecules of RNA (tens to hundreds of nucleotides in length) play a key regulatory role in bacteria. Due to their small size, directly measuring the number of small RNA (sRNA) present in a single...

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Researchers discover simple coating technique using tannic acid and iron

(Phys.org) —A team of chemical researchers at the University of Melbourne in Australia has discovered a simple coating technique that uses nothing but tannic acid and iron ions. In their paper...

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New tool developed for profiling critical regulatory structures of RNA molecules

A molecular technique that will help the scientific community to analyze—on a scale previously impossible—molecules that play a critical role in regulating gene expression has been developed by a...

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Chemists claim to have solved riddle of how life began on Earth

(Phys.org)—A team of chemists working at the MRC Laboratory of Molecular Biology, at Cambridge in the UK believes they have solved the mystery of how it was possible for life to begin on Earth over...

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New technique to accurately detect the 'handedness' of molecules in a mixture

Scientists have demonstrated for the first time the ability to rapidly, reliably and simultaneously identify the 'handedness' of different molecules in a mixture.

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Researchers find a missing component in effort to create primitive, synthetic...

A team of Massachusetts General Hospital (MGH) investigators working to create "protocells"– primitive synthetic cells consisting of a nucleic acid strand encased within a membrane-bound compartment –...

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Biosynthesis captured in motion

(Phys.org) —Chemists have caught molecules in the act of biosynthesis revealing an animated view of how a fundamental piece of cellular machinery operates. The system they observed, a critical...

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Researchers open new possibilities for characterizing nanoparticle interactions

(Phys.org) —Molecules anchored to the surfaces of nanoparticles modify and even control many characteristics of the particles, including how they interact with cells or react to light. The type of...

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Mirror-image nucleic acids as molecular scissors in biotechnology and...

The biochemist Professor Volker A. Erdmann at Freie Universität Berlin succeeded for the first time in creating mirror-image enzymes - so-called Spiegelzymes - out of nucleic acids. The Spiegelzymes...

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New technique could be used to search space dust for life's ingredients

While the origin of life remains mysterious, scientists are finding more and more evidence that material created in space and delivered to Earth by comet and meteor impacts could have given a boost to...

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Better RNA interference, inspired by nature: New nanoparticles offer...

Inspired by tiny particles that carry cholesterol through the body, MIT chemical engineers have designed nanoparticles that can deliver snippets of genetic material that turn off disease-causing genes.

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A better way to purify peptide-based drugs

(Phys.org) —Peptides are an intriguing class of drugs. They are made of amino acids, just as humans are, and because of their intimate relationship with our own biological molecules, they have the...

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