The element is also crucial to more than biological processes in the human body, according to the U. National Library of Medicine. Adult women should take in about milligrams of magnesium a day, and adult men milligrams, according to the NLM. Fruits, vegetables, nuts, legumes and whole grains are good sources.
Doctors sometime recommend magnesium supplements for a variety of medical conditions, including high blood pressure, premenstrual syndrome and diabetes. Imagine a bandage that would kill bacteria from inside a wound. That's the goal of Tufts University biomedical engineer Fiorenzo Omenetto and his colleagues, who have created an implantable device of silk and magnesium that can knock out a staph infection before dissolving harmlessly inside the body.
Typically, medical implants are made of metal or other permanent materials. That means they either become part of the body forever, or they must be removed, a process that can carry risk of infection or other complications.
Omenetto and his team are working to develop something very different. Using a substrate of silk — which is made up of amino acids, the building blocks of protein — and a coil of magnesium, the researchers were able to create a simple miniature heater. Once implanted into the body, the heater can be turned on, increasing the temperature of the tissue just enough to kill Staphylococcus aureus bacteria.
After days or weeks, depending on the construction of the silk and the thickness of the magnesium, the device dissolves. What's in a name? For Magnesia, a district in the region of Thessaly, Greece. Say what? Magnesium is pronounced as mag-NEE-zhi-em. Although it is the eighth most abundant element in the universe and the seventh most abundant element in the earth's crust , magnesium is never found free in nature.
Magnesium was first isolated by Sir Humphry Davy, an English chemist, through the electrolysis of a mixture of magnesium oxide MgO and mercuric oxide HgO in Every cubic kilometer of seawater contains about 1. Magnesium burns with a brilliant white light and is used in pyrotechnics, flares and photographic flashbulbs. Magnesium is the lightest metal that can be used to build things, although its use as a structural material is limited since it burns at relatively low temperatures.
A score of 3 represents a very high hazard to the environment and 0 a negligible hazard. It does not take into exposure to the substance. Magnesium powder is not suspected of being highly harmful to the environment. As magnesium oxide an aquatic toxicity rating of tlm ppm has been established. Read more on magnesium in water. Back to the periodic table of elements. Recommended daily intake of magnesium.
More from 'Elements'. Toggle navigation. Home Periodic table Elements Magnesium. About Lenntech. General Delivery Conditions. Privacy Policy. All rights reserved. Atomic number. Magnesium Chemical element, metallic, symbol Mg, situated in group IIa in the periodic table, atomic number: 12, atomic weight: 24, Applications Magnesium compounds are used as refractory material in furnace linings for producing metals iron and steel, nonferrous metals , glass, and cement.
Environmental effects of magnesium There is very little information available on the environmental effects of magnesium oxide fume.
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