Settling a decades-long debate, new research conclusively shows that a hierarchy of active species exists in gold on iron oxide catalysis designed for low temperature carbon monoxide oxidation; Nanoparticles, sub-nanometer clusters and dispersed atoms—as well as how the material is prepared—are all important for determining catalytic activity.
Multi stimuli-responsive nanocapsules selectively deliver drugs to exactly where they are needed, say researchers. The researchers created the multifunctional nanocapsules by wrapping magnetic iron oxide nanoparticles inside a biocompatible polymer coat that could be tuned to respond to acidity or temperature. Show More Summary
Dust to dust: Evidence for the formation of “primary” hematite dust in banded iron formations via oxidation of iron silicate nanoparticlesAuthors:Rasmussen et alAbstract:Conventional models for the deposition of banded iron formations...Show More Summary
Silver Iron Cup (detail), porcelain with a hare's fur combination glaze - two coats of John's SG-12, one coat Candace Black, and one coat of Hamada Rust, cone 10 oxidation.Oil spot and hare's fur glazes are beautiful and fascinating....Show More Summary
Lai'e Beach on the island of Oahu, with a coral beach sand stained by iron oxides Sand is white or gray. If you live in Florida or some other low-lying coastline, the sand tends to be nearly pure quartz, leading to the white color. In California and other mountainous coasts, there are other minerals mixed with the quartz, leading to a grayer shade. Show More Summary
Washington, DC-- Using laboratory techniques to mimic the conditions found deep inside the Earth, a team of Carnegie scientists led by Ho-Kwang "Dave" Mao has identified a form of iron oxide that they believe could explain seismic and geothermal signatures in the deep mantle. Show More Summary
Using ultrasound, drug particles can be directed to a specific area, including tumors, researchers report. They have created micro-sized gas bubbles coated with cancer drug particles and iron oxide nanoparticles, and then use magnets to direct these bubbles to gather around a specific tumor.
Scientists at Nanyang Technological University (NTU Singapore) have invented a new way to deliver cancer drugs deep into tumour cells. The NTU scientists create micro-sized gas bubbles coated with cancer drug particles and iron oxide...Show More Summary
New light has been shed on a curious group of bacteria that use iron in much the same way that animals use oxygen: to soak up electrons during biochemical reactions. When organisms -- whether bacteria or animal -- oxidize carbohydrates, electrons must go somewhere.
An international group of researchers including Russian scientists from the Moscow State University has been studying the behaviour of the recently-discovered Fe4O5, iron oxide. The group has succeeded in describing its complex structure, and proposed an explanation for its very unusual properties. Show More Summary
“A fundamental approach in astrobiology is to use terrestrial sites as analogs, where we look for insight into the possibilities on other worlds,” says Eric Roden, a professor of geoscience at University of Wisconsin–Madison. “Some people believe that use of...
Recent developments and research related to iron oxide nanoparticles confirm their potential in biomedical applications – such as targeted drug delivery – and the necessity for further studies.
What You'll Be Creating Rusted metal is one of those natural phenomena that is terribly destructive, yet strangely beautiful at the same time. As iron ore oxidizes it creates brilliant colors, patterns and texture in a surface we normally expect to be smooth and plain. Show More Summary
Using a special high-pressure chamber, scientists have discovered two new iron oxides in experiments at DESY's X-ray light source PETRA III and other facilities. The discovery points to a huge, hitherto unknown oxygen source in the lower mantle of the Earth. Show More Summary
Researchers have found that iron oxide nanoparticles can act in similar ways to cellular antioxidants such as catalase, soaking up oxidative molecules and reducing oxidative stress and consequent damage. To the degree that this helps...Show More Summary
Iron oxides occur in nature in many forms, often significantly different from each other in terms of structure and physical properties. However, a new variety of iron oxide, recently created and tested by scientists in Cracow, surprised both physicists and engineers, as it revealed features previously unobserved in any other material. read more
Rumors of a truly unbreakable glass breakthrough are greatly exaggerated. In late October, scientists in Japan revealed that they had successfully developed a new form of oxide glass that is as strong as cast iron and, by one metric,...Show More Summary
A video from The Royal Institution explains in a very calm, subdued, British way what happens when you burn iron oxide and aluminum powder inside a pumpkin. The visual effects are quite impressive. (YouTube link) It’s also quite dangerous, so don’t try this at home. Please. Thermite is nothing to fool around with. -via The Daily Dot
Two jack-o’-lanterns demonstrate an explosive thermite reaction in a fiery halloween science video by the Royal Institution of Great Britain. Host Andy Marmery explains the powerful exothermic reaction between iron oxide and aluminum powders that erupts and sets off a wad of gun cotton in the second pumpkin.
What You'll Be Creating Rust. That beautifully terrible oxidation of iron elements. It's a fact of life in our world filled with metal and machines. Time and moisture take their toll, and even our most magnificent machines deteriorate. Show More Summary