Rewritable optical media. Do not use ink
and paper that can be used up to almost 20 times more than what it is. It does not require any ink Designers think This new technology may help reduce waste several tons. And help people to save energy,
a special dye that is embedded in the paper, it can print it and rewrite it. The dye will change from dark to bright and come back when the chemical reaction of electrons moving around. Chemicals to change the color of the paper. That is redox The oxidation is bringing one or more electrons from the molecules. Rust is an example of an oxidation reduction. "As iron rust in the air. Electrons of the oxygen atom, it will move to the nearby "Yadong Yin, which he described as a chemist at the University of California, Riverside the reduction is the opposite of oxidation reduction. It was to fill one or more electrons. When the oxidized iron rust. The reduction will occur with oxygen atoms nearby. This means that They will receive electrons. And negative charge indicator When the dye in this paper is oxidized. It appears as a blue, red or green (depending on the dye in the paper) when the dye was partially reduced. These colors will disappear. This reaction makes it possible to control the display font type. And then remove to reapply it. The beginning of the paper in this study are clear plastic, which makes us see that the paper work. However, this technology can be used in the glass and paper as well. As long as it is a pre-Orthodox dye, it works. The paper begins with a dye is oxidized completely. And that causes more colors Crystal nanoparticles of titanium dioxide is coated on the surface of the paper. In order to print something like that. Scientists have this color coated paper with a letter or an image on a break through. You may think of it as a stencil. Or a mask Next, scientists are working on a mask to UV. Light will stimulate the reduction reaction seasons in the paper did not come to light. Which then makes it disappear. "Just part of an oxidizing agent, which is coated with a stencil mask is still showing the darker the" Yin explained that the printing area. So writing is completed by the use of light. The Deus all areas and processes that will make it a blank paper. If you start spending again. Paper, it must return a solid color sheet again. Oxygen in the air to make this happen. Oxygen to extract electrons from the area without printing. You do not want this to happen a second time after you print it. Man needs time to read the publication, go first. Specialty cellulose in the paper will slow the missing letters. Cellulose is made of oxygen reacts with the dye was more difficult. Printing can persist for more than two days, on the other hand, some people like to take this paper again. The heat will accelerate time to remove them faster. At a certain temperature The oxidation can change all paper provides a solid color within five minutes or less, the team of Yin has described this discovery on December 2 in Nature communications
work remains to be further Howen. Lee said: "The research team of Yin is a component of our comprehensive e la campaign for this new technology in order to make it works very well," "That makes the paper, this is important," he said in return. Paper can be printed It was not immediately returned dimmed again. Paper can be recycled and re-used Lee is an engineer at Seoul National University in Korea, and is not involved in this research. But he knew of Yin in fact, Lee Yin and work with other scientists in 2009 in another project. Education is about light reacts with nanoscale crystals do. This happens naturally in the wings of butterflies and feathers of a peacock. The researchers want to learn about the science of natural processes. This group has published his findings in Nature Photonics Lee said: "The project is the work of Yin in the more detailed engineering" It does not represent a scientific basis. But it is superior It uses the latest in material science. The paper can be rewritten with the aim to help people in real life. Paper can be shown in blue, green or red, but full color printing is not allowed. In order to do this. Scientists find a way to mix dyes, another problem is that some people can not read the article right away and decided to keep it in this paper to read later. The total area of the paper will be dimmed to within two days. "However, To save money, the resources and advantages of the paper is reprinted with many "Yin said paper use reduction allows us to preserve the forests are also said Yin. Using less paper not only reduce the waste of printed materials, but also reduce harmful chemicals, too, but for now, do not leave a laptop and printer of you. Printed over again, there is a long way before it is ready to be used in the home, school or office.
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