Researchers recover PVA from the screens to use in medicine
Around the U.S., tons of electronic devices are thrown away each year and many of the devices ultimately end up in landfills. There are a number of recycling programs around the country, but some researchers think that better uses for old electronics are available than simply recycling them.
A compound that is found inside of LCD screens could be a key component in medications according to researchers at the University of York. The specific compound is polyvinyl-alcohol (PVA), which is widely used in LCD TVs. LCD panels are typically incinerated or buried in landfills when they are no longer usable.
The group of researchers has found a way to recover the PVA from the screens and turn it into a substance that may be suitable for use in tissue scaffolds to help the body regenerate. The researchers also say that the chemical could be useful in medications and other items to deliver drugs to a specific part of the body.
Professor James Clark said, "With 2.5 billion liquid crystal displays already reaching the end of their life, and LCD televisions proving hugely popular with consumers, that is a huge amount of potential waste to manage. It is important that we find ways of recycling as many elements of LCDs as possible so we don’t simply have to resort to burying and burning them."
The new technique that the researchers developed produces a product that is called expanded PVA. Expanded PVA is created by heating the LCD material in water using a microwave oven and then washing the material in ethanol.
The reason that PVA is being looked at so closely for medications and other medicinal uses is that the chemical produces no response from the immune system of the human body.
In February of 2009, DailyTech reported that another use for technology after the end of its useful life had been found. Some tech trash can be recycled and used in a new type of asphalt that is stronger than traditional asphalt used in roadways.
"Well, we didn't have anyone in line that got shot waiting for our system." -- Nintendo of America Vice President Perrin Kaplan
|
Most Popular ArticlesEasy Fix to Prevent Microsoft From Bricking Xbox 360s HDDs Arrives November 18, 2009, 6:41 AM Anti-Evolution Actor Modifies Darwin's Work With Questionable Intro November 22, 2009, 12:12 PM Built Around the Browser, Google's Chrome OS Launches, Reinvents the Operating System November 19, 2009, 2:40 PM Climategate: Stunning Deception and Misconduct at UK Warming Research Center Revealed November 20, 2009, 4:00 PM OCZ Technology Announces 3.5" 1TB Colossus SSDs November 17, 2009, 6:48 PM
|