source:Nationa ObserverAt a laboratory inside a Google data centre in Mayes County, Okla., researchers spent the fall of 2019 disassembling old hard disk drives by hand in order to extract a two-inch-long component known as the magnet assembly. Consisting of two powerful rare earth magnets, the magnet assembly is a critical muscle within the hard drive, controlling an actuator arm that allows the device to read and write data.Over the course of six weeks, the scientists harvested 6,100 of these magnetic muscles, all of them effectively good as new. The magnets were then shipped to a hard drive...
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source:Mining.ComDefense Metals (TSX-V:DEFN) has entered into a Memorandum of Understanding with Sinosteel Equipment & Engineering, a subsidiary of Sinosteel Corporation for testwork and potential concentrator design research cooperation, and an investigation into the establishment of an on-site large-scale pilot plant at the Wicheeda Rare Earth property in British Columbia to assess the economic and technical feasibility of full-scale mine development.Defense Metals began drill pad construction at the end of July in anticipation of starting its 2021 resource expansion.The Wicheeda Critica...
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2021
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source:Mining WeeklyThe Queensland government has invested A$1-million into a joint study with the University of Queensland’s Sustainable Minerals Institute to investigated the use of native plants to extract rare earth metals.Through the study, native plants such as selenium weed and a variety of macadamia trees are being researched for their abilities as “hyperaccumulators” that extract rare earth metals from the ground through a process called “phytomining”.Resources Minister Scott Stewart said the innovative world-first joint study has the potential to change how some mines operate in the ...
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2021
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Size-Dependent Cytotoxicity and Reactive Oxygen Species of Cerium Oxide Nanoparticles in Human Retinal Pigment Epithelia Cells source:DovepressNanomaterials have unique properties, such as small size and enlarged surface area, that enhance regenerative and catalytic enzyme activities and, consequently, their biological effects. Cerium (Ce), a critical rare earth element with a unique f-electron configuration that gives its compounds special properties, has been called a universal new material.1 In cerium oxide nanoparticles (CeO2 NPs), there are two valence states-Ce3+ (reduced state) and...
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2021
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