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Brief history of the development of zinc oxide

wallpapers News 2021-11-11
Humans have long learned to use zinc oxide in coatings and topical medicine, but the history of its discovery is hard to trace.
As early as 200 BC, the Romans learned to make brass by reacting copper with zinc ore containing zinc oxide. Zinc oxide turns into zinc vapor in the shaft furnace and rolls into the flue to react. Dioscorides also described this.
From the 12th century, The Indians became acquainted with zinc and zinc mines and began to mine zinc in primitive ways. The technology of zinc smelting was introduced into China in the 17th century. In 1743, The first zinc smelting plant in Europe was established in Bristol, England.
Another major use of zinc oxide is as a paint. It was first used as a watercolor in 1834, but it does not dissolve well in oil. But the problem was soon solved by a new zinc oxide production process. Leclerc began mass production of zinc-white oil paints in Paris in 1845, and by 1850 zinc oxide was popular throughout Europe. Zinc oxide is so pure that by the end of the 19th century, some artists had painted their paintings with zinc white as a background color, but the paintings developed cracks after a hundred years.
In the second half of the 20th century, zinc oxide was used in the rubber industry. In the 1970s, the second largest use of zinc oxide as a copy paper additive, but in the 21st century, zinc oxide as a copy paper additive has been eliminated.
A research team led by Professor Morihiko Nakamura of Shimane University synthesized zinc oxide particles about 10 nanometers in diameter and treated them with special treatment to behave like fluorescent substances. The nanoparticles emit light consistently for more than 24 hours but cost less than one-hundredth of GFP to produce.
From November 1 to 15, 2008, the researchers managed to film the particles glowing inside mice by feeding them a protein bound to the particles.
Shimane University has developed zinc oxide nanoparticles that can fluorescently emit light, making them stable and safe for cutting-edge medical applications, the university announced on November 18, 2008.

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