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59 Current news about the topic iron oxide

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Magnetic nanoparticles with ionic liquids for water purification

Providing Safe, Clean Water

03-Dec-2019

In many parts of the world, access to clean drinking water is far from certain. Filtration of large volumes of water, however, is slow and impractical. In the journal Angewandte Chemie, scientists have introduced a new water purification method based on magnetic nanoparticles coated with a ...

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Eco-friendly method for the synthesis of iron oxide nanoparticles

Producing nanomaterials from plant extracts

17-Sep-2019

A team of scientists from Ural Federal University (Yekaterinburg), Bangladesh University of Engineering and Technology and other collaborator have published an article about a new method for the synthesis of magnetic nanoparticles. Today nanoparticles are used in various fields, from biomedicine ...

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Fish-inspired material changes color using nanocolumns

22-Mar-2019

Inspired by the flashing colors of the neon tetra fish, researchers have developed a technique for changing the color of a material by manipulating the orientation of nanostructured columns in the material. "Neon tetras can control their brightly colored stripes by changing the angle of tiny ...

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Rust never sleeps

Chinks in iron crystals that can 'heal'

06-Feb-2019

Like iron flowing through the blood stream, iron minerals course through the ground. These minerals are used to make steel and other metal alloys used in everything from cell phone components and cars to buildings, industrial equipment and infrastructure. Unfortunately, when exposed to oxygen and ...

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New devices based on rust could reduce excess heat in computers

Physicists explore long-distance information transmission in antiferromagnetic iron oxide

14-Sep-2018

Scientists have succeeded in observing the first long-distance transfer of information in a magnetic group of materials known as antiferromagnets. These materials make it possible to achieve computing speeds much faster than existing devices. Conventional devices using current technologies have ...

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For a Better Contrast

Rare earth orthoferrite LnFeO3 nanoparticles for bioimaging

06-Sep-2018

Magnetic resonance imaging (MRI) has emerged as one of the most powerful clinical imaging tools because of its superb spatial resolution and soft tissue contrast, especially when using contrast agents. In the European Journal of Inorganic Chemistry, scientists have presented a new kind of ...

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Squeezing nanocrystals in a liquid droplet into a solid-like state and back again

13-Aug-2018

A team led by scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) found a way to make a liquid-like state behave more like a solid, and then to reverse the process. They put a droplet of a liquid containing iron oxide nanocrystals into an oily liquid ...

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A simpler way to deposit magnetic iron oxide onto gold nanorods

14-Dec-2017

Researchers from North Carolina State University and MIT have found a simpler way to deposit magnetic iron oxide (magnetite) nanoparticles onto silica-coated gold nanorods, creating multifunctional nanoparticles with useful magnetic and optical properties. Gold nanorods have widespread potential ...

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Pulling iron out of waste printer toner

17-Nov-2017

Someday, left-over toner in discarded printer cartridges could have a second life as bridge or building components instead of as trash, wasting away in landfills and potentially harming the environment. One group reports that they have devised a method to recycle the residual powder in "empty" ...

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More solar power thanks to titanium

29-Aug-2017

Earth-abundant, cheap metals are promising photocatalytic electrode materials in artificial photosynthesis. A team of Chinese scientists now reports that a thin layer of titania beneath hematite nanorods can boost the performance of the photoanode. As outlined in their report, the nanostructured ...

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