Featured Research

from universities, journals, and other organizations

Medical Use For Waste Television Screens

Date:
July 13, 2009
Source:
University of York
Summary:
Waste material from discarded televisions could be recycled and used in medicine, according to new research.

Waste material from discarded televisions could be recycled and used in medicine, according to new research by scientists at the University of York.

The chemical compound polyvinyl-alcohol (PVA) is widely used in industry and is a key element of television sets with liquid crystal display (LCD) technology. When these sets are thrown away, the LCD panels are usually incinerated or buried in landfill sites.

Researchers have now found a way of recovering PVA from television screens and transforming it into a substance suitable for use in tissue scaffolds which help parts of the body regenerate. They can also be used in pills and dressings that are designed to deliver drugs to particular parts of the body.

The research is by five academics in the University's Department of Chemistry, which is home to the York Green Chemistry Centre of Excellence and the York Liquid Crystal Group, and is published in the journal Green Chemistry.

Professor James Clark, director of the York Green Chemistry Centre of Excellence and one of the author's of the research, 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 researchers have developed a technique where recovered material is heated in water in a microwave and washed in ethanol to produced "expanded PVA".

One of this material's key properties is that it does not provoke a response from the human immune system, making it suitable for use in biomedicine.

The latest research is a development from a long term project, funded by the Technology Strategy Board, examining the problems posed by LCD waste in which the University of York is a partner.


Story Source:

The above story is based on materials provided by University of York. Note: Materials may be edited for content and length.


Journal Reference:

  1. Hunt et al. Expanding the potential for waste polyvinyl-alcohol. Green Chemistry, 2009; DOI: 10.1039/b906607a

Cite This Page:

University of York. "Medical Use For Waste Television Screens." ScienceDaily. ScienceDaily, 13 July 2009. <www.sciencedaily.com/releases/2009/07/090713085246.htm>.
University of York. (2009, July 13). Medical Use For Waste Television Screens. ScienceDaily. Retrieved September 20, 2014 from www.sciencedaily.com/releases/2009/07/090713085246.htm
University of York. "Medical Use For Waste Television Screens." ScienceDaily. www.sciencedaily.com/releases/2009/07/090713085246.htm (accessed September 20, 2014).

Share This



More Earth & Climate News

Saturday, September 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Wildfires in CA Burn Forest Asunder

Raw: Wildfires in CA Burn Forest Asunder

AP (Sep. 18, 2014) — An out-of-control Northern California wildfire has nearly 2,800 people from their homes as it continues to grow, authorities said Thursday. Authorities said a man has been arrested on suspicion of arson for starting the fire on Saturday. (Sept. 18) Video provided by AP
Powered by NewsLook.com
Raw: Elephant Undergoes Surgery in Tbilisi Zoo

Raw: Elephant Undergoes Surgery in Tbilisi Zoo

AP (Sep. 18, 2014) — Grand the elephant has successfully undergone surgery to remove a portion of infected tusk at Tbilisi Zoo in Georgia. British veterinary surgeons used an electric drill to extract the infected piece. (Sept. 18) Video provided by AP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) — Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Man Floats for 31 Hours in Gulf Waters

Man Floats for 31 Hours in Gulf Waters

AP (Sep. 16, 2014) — A Texas man is lucky to be alive after he and three others floated for more than a day in the Gulf of Mexico when their boat sank during a fishing trip. (Sept. 16) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins