Agriculture
Earth-Friendly Fabrics
Protecting Cows—and People—from a Deadly Disease
New Gene Fights Potato Blight
Amphibians
Newts
Salamanders and Newts
Tree Frogs
Animals
Fishy Cleaners
Monkeys Count
New Mammals
Behavior
Hitting the redo button on evolution
A brain-boosting video game
Two monkeys see a more colorful world
Birds
Owls
Cassowaries
Carnivorous Birds
Chemistry and Materials
The chemistry of sleeplessness
Bang, Sparkle, Burst, and Boom
Small but WISE
Computers
The Shape of the Internet
Galaxies on the go
Programming with Alice
Dinosaurs and Fossils
Winged Insects May Go Way Back
Feathered Fossils
Three strikes wiped out woolly mammoths
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
Earth
Warmest Year on Record
Earth Rocks On
Slip Slidin' Away—Under the Sea
Environment
Sounds and Silence
Spotty Survival
Nanosponges Soak Up Pollutants
Finding the Past
Your inner Neandertal
A Plankhouse Past
Of Lice and Old Clothes
Fish
Cleaning Up Fish Farms
Great White Shark
Whale Sharks
Food and Nutrition
Food for Life
Sponges' secret weapon
Turning to Sweets, Fats to Calm the Brain
GSAT English Rules
Pronouns
Who vs. Whom
Subject and Verb Agreement
GSAT Exam Preparation Jamaica
10 Common Mistakes When Preparing for the GSAT Math Test
How are students placed after passing the GSAT exam
Results of GSAT are in schools this week
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT Scholarship
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Mathematics
Losing with Heads or Tails
42,000 students will sit for the GSAT Exam in two weeks
Math and our number sense: PassGSAT.com
Human Body
Hear, Hear
Dreaming makes perfect
Nature's Medicines
Invertebrates
Worms
Arachnids
Daddy Long Legs
Mammals
African Elephants
Bonobos
Spectacled Bear
Parents
Raise a Lifelong Reader by Reading Aloud
What Not to Say to Emerging Readers
How children learn
Physics
Project Music
Speedy stars
Einstein's Skateboard
Plants
Surprise Visitor
When Fungi and Algae Marry
City Trees Beat Country Trees
Reptiles
Gila Monsters
Iguanas
Black Mamba
Space and Astronomy
Asteroid Lost and Found
A Planet's Slim-Fast Plan
Wrong-way planets do gymnastics
Technology and Engineering
Reach for the Sky
A Light Delay
Drawing Energy out of Wastewater
The Parts of Speech
What is a Verb?
What is a Noun
What is a Preposition?
Transportation
Ready, unplug, drive
Are Propellers Fin-ished?
Flying the Hyper Skies
Weather
Recipe for a Hurricane
Polar Ice Feels the Heat
Weekend Weather Really Is Different
Add your Article

Sugar Power for Cell Phones

Drinking sugary soda gives you a burst of energy. Some day, sugar might power electronic equipment as well. That's because scientists have now found a way to turn sugar into electricity. If they can find a way to make the technology work on a large scale, you may some day share your sweet drinks with your handheld video game player or cell phone. The new strategy involves fuel cells, which are devices that use chemical reactions to produce electrical currents. Manufacturers already make fuel cells that depend on precious metals, such as platinum, to spark those chemical reactions. Precious metals, however, are expensive and hard to get. For the new study, researchers from St. Louis University used a type of protein called enzymes in place of the metals. In the cells of living things, including people, enzymes are what spark chemical reactions. To keep up the pace that our bodies demand, our cells constantly produce new enzymes as the old ones break down. Scientists had tried using enzymes in fuel cells before, but they had trouble keeping the electricity flowing. That's because, unlike the enzymes in our cells, the enzymes in fuel cells break down faster than they can be replaced. To get around this problem, the St. Louis researchers invented molecules that wrap around an enzyme and protect it. Inside this molecular pocket, an enzyme can last for months instead of days. In the new fuel cells, electricity-conducting materials are attached to wires. The scientists coat each conductor with a layer of wrapped enzymes. Then, they allow a sugary liquid to ooze inside the enzyme pockets. When the enzymes interact with the sugar molecules in the liquid, chemical reactions release a flow of electrons into the wire. This process produces both water and an electrical current that could power electronic devices. So far, the new fuel cells don't produce much power, but the fact that they work at all is exciting, says Paul Kenis, a chemical engineer at the University of Illinois at Urbana-Champaign. "Just getting it to work," Kenis says, "is a major accomplishment." Sugar-eating fuel cells could be an efficient way to make electricity. Sugar is easy to find. And the new fuel cells that run on it are biodegradable, so the technology wouldn't hurt the environment. The scientists are now trying to use different enzymes that will get more power from sugar molecules. They predict that popular products may be using the new technology in as little as 3 years.—E. Sohn

Sugar Power for Cell Phones
Sugar Power for Cell Phones








Designed and Powered by HBJamaica.com™