Agriculture
Springing forward
Cleaning Up Fish Farms
Growing Healthier Tomato Plants
Amphibians
Newts
Poison Dart Frogs
Toads
Animals
Insect Stowaways
A Whale's Amazing Tooth
Mating Slows Down Prairie Dogs
Behavior
Wake Up, Sleepy Gene
Diving, Rolling, and Floating, Alligator Style
Double take
Birds
Mockingbirds
Robins
Eagles
Chemistry and Materials
Big Machine Reveals Small Worlds
The Incredible Shrunken Kids
Boosting Fuel Cells
Computers
Nonstop Robot
Music of the Future
Electronic Paper Turns a Page
Dinosaurs and Fossils
Fingerprinting Fossils
Dino Babies
Teeny Skull Reveals Ancient Ancestor
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
A Volcano's Deadly Ash
Deep History
In Antarctica watch the heat (and your step)
Environment
Easy Ways to Conserve Water
Missing Tigers in India
Groundwater and the Water Cycle
Finding the Past
Stone Age Sole Survivors
Fakes in the museum
Prehistoric Trips to the Dentist
Fish
White Tip Sharks
Carp
Catfish
Food and Nutrition
Building a Food Pyramid
Yummy bugs
Recipe for Health
GSAT English Rules
Whoever vs. Whomever
Who vs. Whom
Pronouns
GSAT Exam Preparation Jamaica
2014 GSAT Results for Jamaican Kids
How are students placed after passing the GSAT exam
GSAT stars reap scholarship glory
GSAT Exams Jamaica Scholarships
GSAT Scholarship
Results of GSAT are in schools this week
GSAT stars reap scholarship glory
GSAT Mathematics
GSAT Practice Papers | GSAT Mathematics | Maths
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
42,000 students will sit for the GSAT Exam in two weeks
Human Body
From Stem Cell to Any Cell
Running with Sneaker Science
Heart Revival
Invertebrates
Beetles
Hermit Crabs
Camel Spiders
Mammals
Rhinoceros
Mouse
African Hippopotamus
Parents
What Not to Say to Emerging Readers
Expert report highlights the importance to parents of reading to children!
How children learn
Physics
The Mirror Universe of Antimatter
Black Hole Journey
Powering Ball Lightning
Plants
A Change in Leaf Color
Flower family knows its roots
Underwater Jungles
Reptiles
Anacondas
Box Turtles
Turtles
Space and Astronomy
An Earthlike Planet
Saturn's Spongy Moon
A Planet's Slim-Fast Plan
Technology and Engineering
Weaving with Light
Spinach Power for Solar Cells
Beyond Bar Codes
The Parts of Speech
Adjectives and Adverbs
What is a Noun
What is a Preposition?
Transportation
Are Propellers Fin-ished?
Tinkering With the Basic Bike
Robots on the Road, Again
Weather
A Dire Shortage of Water
In Antarctica watch the heat (and your step)
Warmest Year on Record
Add your Article

Musclebots Take Some Steps

You've probably heard of robots. Now, make way for musclebots. Scientists in California have made tiny walking machines out of heart muscle grown from rat cells. When the muscle contracts, then relaxes, the musclebot takes a step. The entire device is tinier than a comma. Viewed under a microscope, "they move very fast," says bioengineer Jianzhong Xi of the University of California, Los Angeles (UCLA). "The first time I saw that, it was kind of scary." Scientists have already used muscle tissue to make machines, but these earlier machines were much larger than the new musclebots. A few years ago, for instance, a team at the Massachusetts Institute of Technology made a palm-sized device, called a biomechatronic fish, which swam by using living muscle tissue taken from frogs' legs. Adding muscles to a minuscule machine requires a different approach. Instead of using whole tissue, the scientists grew a thin film of heart muscle right on their bot. To do this, they borrowed some methods from the industry that makes chips for computers and other high-tech devices. But these methods can harm cells, so the team also invented some cell-friendly techniques to help do the job. In the end, the musclebot looks like a golden arch, coated on its inner surface with muscle. Kept alive in a special solution containing glucose, the heart muscle cells beat, causing the bot to scoot along. When the muscle contracts, the arch squeezes together, and the back leg moves forward. When the muscle relaxes, the arch widens, and the front leg moves forward. Researchers envision a number of applications for the new technology, including musclebots that deliver drugs directly to the cells that need them. They might also be useful for building other tiny machines, converting muscle motion into electric power for microcircuits, or studying muscle tissue. So far, musclebots can move only in one direction, and they can't be easily turned on and off. Future versions are sure to be more versatile.E. Sohn

Musclebots Take Some Steps
Musclebots Take Some Steps








Designed and Powered by HBJamaica.com™