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Tag: "bonding" at biology news

UCSD medical/bioengineering reseachers show titanium debris satobtage artificial joints

Microscopic titanium particles weaken the bonding of hip, knee, and other joint replacements, accord... team measured how titanium particles affected the bonding strength of pins implanted in rat thighs. The pins were shown to come out more easily when the titan...

UF researchers kill resistant bugs one bandage at a time

...s pending on the researchers' method of chemically bonding the substance to fabrics and other materials. This method allows the substance to be efficiently mass produced and permanently adhered to wound dressings or ready-to-wear clothing to make antifungal and microbicidal socks and underwear. "What we dev...

Opiates Better Than Sedatives For Treating Newborns In Withdrawal

...problems and fever. Disruption in the mother-child bonding process has also been reported, and there is an increased risk of sudden infant death syndrome. In the studies, newborns suffering from NAS were treated with opiates (morphine, methadone, paregoric, or tincture of opium), sedatives (phenobarbitone, ...

Researchers discover new route to hemoglobin synthesis

...problems and fever. Disruption in the mother-child bonding process has also been reported, and there is an increased risk of sudden infant death syndrome. In the studies, newborns suffering from NAS were treated with opiates (morphine, methadone, paregoric, or tincture of opium), sedatives (phenobarbitone, ...

Computers close in on protein structure prediction

...d which favors close packing of atoms and hydrogen bonding to more accurately compute the energy of the structure. "What seems to be critical is the packing of the molecule," Baker said. "The protein fits together perfectly with no holes in the middle, and no atoms on top of each other. It's about as densel...

Antibacterial coatings cut infection rates

...the surface. "We attach the furanones by covalent bonding to our biomedical devices. We stress covalent bonding because it is important that we anchor them very firmly to the surface, making it impossible for the...

Are dancers genetically different than the rest of us? Yes, says Hebrew University researcher

...s to modulate social communication and affiliative bonding behaviors. Both are elements involved in the age-old human social expression of dancing. The genetic evidence was corroborated by two questionnaires distributed by the researchers to the dancers. One is the Tellegen Absorption Scale (TAS), that cor...

Rehydrate -- your RNA needs it

...other guests. "As a consequence, their hydrogen bonding partners---some of which are water molecules---also rearrange. Then their hydrogen bonding partners also rearrange, creating a domino effect, where a local modification spreads throughout the...

New egg freezing technique offers hope to hundreds of women

...preservation may induce irreversible damage to the bonding of the microtubules," she said. Professor Nottola, an associate professor of anatomy in the Department of Anatomy, University La Sapienza, Rome, Italy, told the conference that a variety of abnormalities became apparent when frozen-thawed eggs were ...

Study reveals details of mussels' tenacious bonds

... over an order of magnitude stronger than hydrogen bonding but still completely reversible. On an organic substrate, DOPA can form even stronger, and irreversible, covalent bonds when it is oxidized by seawater. This helps to explain the remarkable versatility of mussels to adhere strongly to many differen...

'Pinball protons' created by ultraviolet rays and other causes can lead to DNA damage

...off proton can either break entirely or change its bonding angle--something that also causes improper replication. "The C-G subunit is usually totally planar [flat]," said Lind. "If it twists, it could simply pull apart." Though it has already been suspected that lesions in DNA caused by both high- and lo...

The shape of life: research sheds light on how cells take shape

...o years of work, they solved the mystery. Chemical bonding and mechanical instability were responsible for the stripes. In the first stage of the process, the microtubules line up uniformly, like pickets in a fence. As the microtubules continue to grow, they clump together in bundles of 200 to 300. Then th...

Male chimpanzees prefer mating with old females

...ts that species that appear to lack long-term pair bonding and menopause (such as chimpanzees) should not exh...ddition to supporting the idea that long-term pair bonding and menopause may contribute to the preference of human males for young females, also suggest that t...

Nano-devices hold promise for early-stage cancer detection

...mately 9,600 square feet and include a clean room, bonding and packaging facilities, characterization facilities, and prototyping and testing. "The development of this unique infrastructure complements research already underway at McMaster in the related fields of biomedical engineering, manufacturing and...

Progress toward artificial photosynthesis?

...lants involves an important intermediate step: the bonding of CO2 to nitrogen atoms to form carbamates. The German researchers thus also experimented with nitrogen-rich catalysts with structures that allow them to form carbamates. Their new class of catalysts is made of flat, graphite-like layers. The indivi...

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