Featured Research

from universities, journals, and other organizations

Keeping wood preservatives where they belong: In the wood

Date:
April 11, 2012
Source:
Michigan Technological University
Summary:
Pressure-treated wood is great stuff, but the chemicals used to preserve it from decay can leach out, where they can be toxic to bugs, fungi and other hapless creatures. Now, scientists are using nanotechnology to keep the chemicals inside the wood where they belong.

Pressure-treated wood is great stuff, but the chemicals used to preserve it from decay can leach out, where they can be toxic to bugs, fungi and other hapless creatures that have the bad luck to be in the neighborhood. Now, a team of Michigan Technological University scientists has used nanotechnology to keep the chemicals inside the wood where they belong.

"It's a new method that uses nanoparticles to deliver preservatives into the lumber," said chemistry professor Patricia Heiden. "In our experiments, it reduced the leaching of biocides by 90 percent."

The nanoparticles are tiny spheres of gelatin or chitosan (a material found in the shells of shrimp and other shellfish) chemically modified to surround the fungicide tebuconazole. The little spheres require no special handling.

"You just pressure-treat the wood in the usual way," Heiden said.

The initial tests show that the nanoparticle-treated wood is just as resistant to rot and insects as conventionally treated lumber. The researchers are now testing the wood in the warm, wet weather of Hawaii.

The research is funded by the US Environmental Protection Agency. Other Michigan Tech researchers contributing to the project are chemistry PhD student Xiaochu Ding and, from the School of Forest Research and Environmental Science, Research Engineer/Scientist II Dana Richter, Senior Research Engineer/Scientist Glenn Larkin, Assistant Research Scientist Erik Keranen and Professor Peter Laks.


Story Source:

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


Cite This Page:

Michigan Technological University. "Keeping wood preservatives where they belong: In the wood." ScienceDaily. ScienceDaily, 11 April 2012. <www.sciencedaily.com/releases/2012/04/120411205259.htm>.
Michigan Technological University. (2012, April 11). Keeping wood preservatives where they belong: In the wood. ScienceDaily. Retrieved April 16, 2014 from www.sciencedaily.com/releases/2012/04/120411205259.htm
Michigan Technological University. "Keeping wood preservatives where they belong: In the wood." ScienceDaily. www.sciencedaily.com/releases/2012/04/120411205259.htm (accessed April 16, 2014).

Share This



More Plants & Animals News

Wednesday, April 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Outbreak Now Linked To 121 Deaths

Ebola Outbreak Now Linked To 121 Deaths

Newsy (Apr. 15, 2014) The ebola virus outbreak in West Africa is now linked to 121 deaths. Health officials fear the virus will continue to spread in urban areas. Video provided by Newsy
Powered by NewsLook.com
In Washington, a Push to Sterilize Stray Cats

In Washington, a Push to Sterilize Stray Cats

AFP (Apr. 14, 2014) To curb the growing numbers of feral cats in the US capital, the Washington Humane Society is encouraging residents to set traps and bring the animals to a sterilization clinic, after which they are released.. Duration: 02:29 Video provided by AFP
Powered by NewsLook.com
After Attack, Officials Kill 5 Bears in Florida

After Attack, Officials Kill 5 Bears in Florida

AP (Apr. 14, 2014) Florida wildlife officials say they have killed five bears following an attack on a woman in a suburban subdivision in central Florida. Forty-five year-old Terri Frana was attacked by a large bear in her driveway Saturday. (April 14) Video provided by AP
Powered by NewsLook.com
Uruguay Opens Its First Cannabis Library

Uruguay Opens Its First Cannabis Library

AFP (Apr. 13, 2014) Uruguay opened its first Cannabis Library in Montevideo on Saturday, where people can come and read books on cannabis or take classes on how to grow the plant or even how to cook with it. Duration: 01:20 Video provided by AFP
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