Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
. Earth Science News .




WATER WORLD
Sustainable barnacle-repelling paint
by Staff Writers
Washington DC (SPX) May 02, 2014


File image.

Barnacles might seem like a given part of a seasoned ship's hull, but they're literally quite a drag and cause a ship to burn more fuel. To prevent these and other hangers-on from slowing ships down, scientists are developing a sustainable paint ingredient from plants that can repel clingy sea critters without killing them. The report appears in the ACS journal Industrial and Engineering Chemistry Research.

Guillermo Blustein and colleagues explain that barnacles and other ocean creatures that stick to hulls create a cascade of problems. By increasing water resistance, they can bump a ship's fuel use by as much as 40 percent, which costs money, adds to pollution and depletes resources.

These marine hitchhikers also can cause environmental problems by invading new parts of the globe and competing with native animals and plants. To keep hulls clean, some shipping companies have turned to special coatings. The problem is these coatings can permanently harm sea life. So the team sought an ocean-friendlier option from a sustainable source.

They turned to Maytenus trees, which are found worldwide. The plants' root bark contains compounds that are similar to defensive agents produced by bottom-dwelling ocean creatures. In the lab, the scientists found that the compounds repel barnacles, but generally don't cause long-term damage. They also added the compounds to paint, which they applied to tiles and field-tested in the sea. The new coatings effectively stopped algae, tube worms and other creatures from latching on.

The authors acknowledge funding from the Agencia Nacional de Promocion Cientifica y Tecnologica, Consejo Nacional de Investigaciones Cientificas y Tecnicas, Comision de Investigaciones Cientificas de la provincia de Buenos Aires, Universidad Nacional de La Plata and Universidad de Buenos Aires.

.


Related Links
American Chemical Society
Water News - Science, Technology and Politics






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





WATER WORLD
More coral babies staying at home on future reefs
Cairns, Australia (SPX) May 01, 2014
Researchers have found that increasing ocean temperatures due to climate change will soon see reefs retaining and nurturing more of their own coral larvae, leaving large reef systems less interconnected and potentially more vulnerable. "We found that at higher temperatures more coral larvae will tend to stay on their birth reef," says the lead author of the study published, Dr Joana Figuei ... read more


WATER WORLD
350 dead, hundreds missing in Afghan landslide village

No answers, only hope as MH370 China father heads home

Malaysia Airlines to end hotel stays for MH370 families

Italy cruise ship removal project halted: media

WATER WORLD
Element 117 confirmed by scientists, closer to being officially named

TV terrifies and compels with viruses and robots

Newly Identified 'Universal' Property of Metamagnets May Lead to Everyday Uses

Researchers Develop Harder Ceramic for Armor Windows

WATER WORLD
Sustainable barnacle-repelling paint

Study in 'Science' finds missing piece of biogeochemical puzzle in aquifers

NASA Begins Field Campaign to Measure Rain in Southern Appalachians

Relentless rains drench US East Coast

WATER WORLD
Network for tracking earthquakes exposes glacier activity

Krypton-dating technique allows researchers to accurately date ancient Antarctic ice

Cougars' diverse diet helped them survive the Pleistocene mass extinction

Ancient sea-levels give new clues on ice ages

WATER WORLD
Danone says will buy New Zealand dairy factories

Corn crops increasingly vulnerable to hot, dry weather

U.S. corn yields are increasingly vulnerable to hot, dry weather

Saving Crops and People with Bug Sensors

WATER WORLD
Deep origins to the behavior of Hawaiian volcanoes

Australian tsunami database reveals threat to continent

Magma in Mount St. Helens rising, but no risk of eruption

Odds of storm waters overflowing Manhattan seawall up 20-fold

WATER WORLD
EU CAR force operational, at Bangui airport: sources

Libya security forces lose 9 dead in Benghazi clashes

China's premier Li Keqiang set for first Africa trip

War, late rains spark Somalia 'crisis' warning

WATER WORLD
DNA 'Sat Nav' directs you to your ancestor's home

Neanderthals were not inferior to modern humans

Extreme sleep durations may affect brain health in later life

Brain Does Not Work The Way A Computer Does Recognizing Speech




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service.