Latest metal ions Stories

FDA Moves to Classify Metal-on-Metal Hip Replacements as “High Risk” Medical Devices, Tells Doctors to Consider Blood Tests to Detect Metal Ion Levels for Patients Experiencing Problems with All-Metal Hips Columbus, OH (PRWEB) January 21, 2013 Wright & Schulte LLC, an experienced defective medical device law firm, is warning recipients of metal-on-metal hip implants that they may be at risk for metallosis and other health issues. In a Safety Communication issued January 17th, the...

A unique strategy developed by researchers at Cardiff University is opening up new possibilities for improving medical imaging.Medical imaging often requires getting unnatural materials such as metal ions into cells, a process which is a major challenge across a range of biomedical disciplines. One technique currently used is called the 'Trojan Horse' in which the drug or imaging agent is attached to something naturally taken up by cells.The Cardiff team, made of researchers from the Schools...

Study finds elevated levels of cobalt and chromium in offspring of patients with metal-on-metal hip implantsHip replacement patients with metal-on-metal (MoM) implants (both the socket and hip ball are metal) pass metal ions to their infants during pregnancy, according to a new study presented today at the 2010 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS). Data showed there is a correlation between cobalt and chromium levels in the mother and those in her infant at...

Nanostructured materials have garnered great interest worldwide due to their unique size-dependent properties for chemical, electronic, structural, medical and consumer applications.Singapore's Institute for Bioengineering and Nanotechnology (IBN) has discovered a new environmentally friendly method to synthesize a wide variety of nanoparticles inexpensively. This new chemical synthesis has been recently published in Nature Materials.IBN researchers have developed a protocol to transfer metal...

U.S. and British researchers have linked changes in the distribution of metal ions in the brain to Parkinson's disease. The findings, presented at the annual meeting of the American Association for the Advancement of Science in Chicago -- by Dr. Joanna Collingwood of Keele University in Staffordshire, England, and Dr. Mark Davidson of the University of Florida -- offer hope of new treatments and earlier diagnosis for those with this neurodegenerative disorder. The researchers are mapping...

Higher-quality coatings through "runaway" self-sputteringIn the electronics industry, thin metal films are deposited on silicon wafers with a sputter gun, which uses energetic ions "“ atoms with a positive charge "“ to knock the metal atoms off a target. Scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory have now developed a powerful new kind of sputter process that can deposit high-quality metal films in complex, three-dimensional nanoscale patterns at a...

British scientists say they've discovered potentially hazardous levels of metal ions in many commercially available wines from several countries. Researchers from Kingston University in London said they found only wines from Argentina, Brazil and Italy did not pose a potential health risk because of the metals. Professor Declan Naughton and Andrea Petroczi said they analyzed wines from 16 nations using a formula developed by the U.S. Environmental Protection Agency for estimating potential...

By Lansdown, A B G Silver is a xenobiotic element with no recognized trace metal value in the human body. It is absorbed into the body through the lungs, gastrointestinal tract, mucus membranes of the urinogenital tract, and through the skin, mainly in the form of silver protein complexes. Although silver is metabolized throughout the soft tissues, available evidence from experimental animal studies and human clinical reports has failed to unequivocally establish that it enters tissues of...

PITTSBURGH--For the first time, a team of investigators at Carnegie Mellon University has shown that the binding of metal ions can mediate the formation of peptide nucleic acid (PNA) duplexes from single strands of PNA that are only partly complementary. This result opens new opportunities to create functional, three-dimensional nanosize structures such as molecular-scale electronic circuits, which could reduce by thousands of times the size of today's common electronic devices. The research...