Agriculture
Making the most of a meal
Middle school science adventures
Vitamin D-licious Mushrooms
Amphibians
Frogs and Toads
Toads
Salamanders and Newts
Animals
Killer Flatworms Hunt with Poison
New Elephant-Shrew
Missing Moose
Behavior
Math is a real brain bender
Mosquito duets
Newly named fish crawls and hops
Birds
Carnivorous Birds
Birds We Eat
Macaws
Chemistry and Materials
Supergoo to the rescue
Supersonic Splash
Popping to Perfection
Computers
Electronic Paper Turns a Page
Troubles with Hubble
Toxic Dirt + Avian Flu = Science Fair Success
Dinosaurs and Fossils
South America's sticky tar pits
Did Dinosaurs Do Handstands?
The Paleontologist and the Three Dinosaurs
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Earth
Coral Islands Survive a Tsunami
Less Mixing Can Affect Lake's Ecosystem
Arctic Algae Show Climate Change
Environment
An Ocean View's Downside
Whale Watch
Toxic Cleanups Get a Microbe Boost
Finding the Past
The Puzzle of Ancient Mariners
The Taming of the Cat
Traces of Ancient Campfires
Fish
Puffer Fish
Sting Ray
Mako Sharks
Food and Nutrition
Allergies: From Bee Stings to Peanuts
Chocolate Rules
Healing Honey
GSAT English Rules
Who vs. That vs. Which
Order of Adjectives
Who vs. Whom
GSAT Exam Preparation Jamaica
Preparing for the GSAT Exam
Ministry of Education Announces 82 GSAT Scholarships for 2010
Mastering The GSAT Exam
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
42,000 students will sit for the GSAT Exam in two weeks
Results of GSAT are in schools this week
GSAT Mathematics
GSAT Practice Papers | GSAT Mathematics | Maths
Monkeys Count
It's a Math World for Animals
Human Body
Don't Eat That Sandwich!
What the appendix is good for
Foul Play?
Invertebrates
Praying Mantis
Bedbugs
Mosquitos
Mammals
Quolls
Dalmatians
Humpback Whales
Parents
What Not to Say to Emerging Readers
How children learn
Raise a Lifelong Reader by Reading Aloud
Physics
Speedy stars
Powering Ball Lightning
Strange Universe: The Stuff of Darkness
Plants
Fastest Plant on Earth
Underwater Jungles
A Change in Leaf Color
Reptiles
Crocodilians
Iguanas
Lizards
Space and Astronomy
A Star's Belt of Dust and Rocks
Cousin Earth
Asteroid Moons
Technology and Engineering
A Micro-Dose of Your Own Medicine
Supersuits for Superheroes
Slip Sliming Away
The Parts of Speech
What is a Noun
Pronouns
Problems with Prepositions
Transportation
Where rivers run uphill
Flying the Hyper Skies
Charged cars that would charge
Weather
A Dire Shortage of Water
Science loses out when ice caps melt
Polar Ice Feels the Heat
Add your Article

Nanosponges Soak Up Pollutants

What could be worse than toxic sludge seeping into soil, poisoning animals and people? The headache of cleaning up all that muck. For years, engineers have struggled to get oil and tar out of the ground at hazardous-waste sites around the United States. Current methods are costly and inefficient. Now, environmental engineers from Cornell University say they may have a better solution. Their strategy involves nanotechnology, a new type of science involving very, very tiny things. In this case, the researchers created a special type of particle, measuring just 20 nanometers across. In comparison, each hair on your head is about 50,000 nanometers wide. The surface of the particle attracts water. The inside avoids water. The engineers then pumped a solution containing the new particles into a column of sand that was contaminated with a chemical called phenanthrene. The chemical is often found in coal tar. The nanoparticles were small enough to move through spaces between the sand grains. As the particles moved upward from the bottom of the sand column, their water-hating interiors sucked phenanthrene out of the sand, trapping it inside. The next challenge is to figure out how to make sure the cleanser nanoparticles return to the surface of the soil, where they can be gathered up and flushed clean of chemicals. To get around that problem, another group of scientists is trying to make nanoparticles that can convert contaminants into less harmful chemicals. That way, the particles could just stay in the soil. Smaller may really be better when it comes to cleaning up contaminated soil.E. Sohn

Nanosponges Soak Up Pollutants
Nanosponges Soak Up Pollutants








Designed and Powered by HBJamaica.com™