New generation of orthopedic, dental and cardiovascular prostheses

...ical compounds to modify the surface of the common biomedical metals such as titanium. Exposing these metals to selected etching mixtures of acids and oxidants results in surfaces with a sponge-like pattern of nano (ultra small) pits. "We demonstrated that some cells stick better to these surfaces than they d...

Common soil mineral degrades the nearly indestructible prion

...are commonly used in such things as batteries and are among the most potent oxidants occurring naturally in soils, capable of chemically transforming a substanc...s, but in low concentrations," says Pedersen. "They are among the strongest oxidants in soil." The new study, which was led by Fabio Russo of the University o...

Study involving more than 100 scientists provides new insights on green algae

... are still many unknown proteins," Merchant said. "We found many proteins involved in antioxidant function. Photosynthesis generates the most powerful oxidants known in biology; there has to be a protection mechanism because oxidation causes aging. In Chlamydomonas, proteins and lipids can get oxidized if rea...

DNA repair proteins monitored at double-strand break

...aks caused by chemotherapy or radiation. It could also suggest new strategies for enhancing repair of double-stranded DNA caused by radiation, natural oxidants in food or the body and other toxins that can cause disease and aging. "Prior to this work, there was no practical and efficient way to find and ...

Bacteria that use radiated water as food

...omposition of water and formation of sulfate from decomposition of sulfur minerals. Hydrogen gas is highly energetic if it reacts with oxygen or other oxidants like sulfate, as the Hindenburg disaster demonstrated. Firmicutes are able to harvest energy from the reaction of hydrogen and sulfate, allowing other...

Orange, grapefruit juice for breakfast builds bones in rats

...ants. In these studies, both grapefruit juice and orange juice increased antioxidants in the rats' systems," Patil said. "So that is the benefit since oxidants damage bone cells. "There are about 400 compounds in citrus," he said. "So we need to find out which compound in citrus caused this." Patil susp...