Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

A solution on paper

13.07.2005


Weizmann Institute scientist develops a process that one day may yield a solution to the global wastepaper glut



One wouldn’t expect paper to be a major source of pollution: after all, it’s made from wood, which in nature breaks down into tiny components that re-enter the plant growth cycle. Yet without proper dampness and other conditions that are often missing in garbage dumps, paper fails to decompose for dozens of years. As a result, billions of tons of wastepaper cram the planet’s landfills, creating an enormous environmental problem worldwide.

Prof. Edward Bayer of the Weizmann Institute’s Biological Chemistry Department has developed a process that one day may yield a solution to the global wastepaper glut. Back in 1983, he and Prof. Raphael Lamed of Tel Aviv University discovered the cellulosome, a molecular complex that degrades cellulose, a major component of wood, cotton and other types of plant matter. In subsequent years, Bayer and Lamed elucidated the cellulosome’s architecture and identified its major components.


The cellulosome is normally not good at breaking down man-made cellulose products such as paper, but Bayer and his colleagues are now developing "designer" cellulosomes that can improve on nature. Using genetic engineering and combining different structural elements in a Lego-like design, the scientists are putting together artificial cellulosomes that are unusually effective.

One such synthetic cellulosome owes its mastery to the fact that it’s made of enzymes with complementary modes of action. In a laboratory dish, this cellulosome takes only about a day to turn finely chopped paper, made of insoluble cellulose chains of up to 10,000 sugar units in length, into a syrup of soluble sugars. The method, reported recently in the Journal of Biological Chemistry, is far from being ready for use in actual landfills, but it points toward a promising approach to waste management: decreasing pollution while producing useful materials.

Alex Smith | EurekAlert!
Further information:
http://www.jgordonassociates.com

More articles from Life Sciences:

nachricht Research team of the HAW Hamburg reanimated ancestral microbe from the depth of the earth
01.03.2017 | Hochschule für Angewandte Wissenschaften Hamburg

nachricht Researchers Imitate Molecular Crowding in Cells
01.03.2017 | Universität Basel

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

Im Focus: Safe glide at total engine failure with ELA-inside

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded after a glide flight with an Airbus A320 in ditching on the Hudson River. All 155 people on board were saved.

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded...

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

A better way to measure the stiffness of cancer cells

01.03.2017 | Health and Medicine

Exploring the mysteries of supercooled water

01.03.2017 | Physics and Astronomy

Research team of the HAW Hamburg reanimated ancestral microbe from the depth of the earth

01.03.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>