Cybernetics News
Recent News |  Archives |  Tags |  About |  Newsletter |  Submit News |  Links |  Subscribe to CyberneticsNews.com RSS Feed Subscribe


More Articles
'Nanocamera' takes pictures at distances smaller than light's own wavelength'Nanocamera' takes pictures at distances smaller than light's own wavelength

The economic territory of Upper Palaeolithic groups is specified by flintThe economic territory of Upper Palaeolithic groups is specified by flint

Potent spider toxin 'electrocutes' German, not American, cockroachesPotent spider toxin 'electrocutes' German, not American, cockroaches

Flower development in 3D: Timing is the keyFlower development in 3D: Timing is the key

Wisconsin scientists find genetic recipe to turn stem cells to bloodWisconsin scientists find genetic recipe to turn stem cells to blood

PIWI proteins and piRNAs regulate genes in the germline and beyondPIWI proteins and piRNAs regulate genes in the germline and beyond

Large twin study suggests that language delay due more to nature than nurtureLarge twin study suggests that language delay due more to nature than nurture

NRL reveals new meteorological insight into mid-level cloudsNRL reveals new meteorological insight into mid-level clouds

Ancient genetic material from caries bacterium obtained for the first timeAncient genetic material from caries bacterium obtained for the first time

Law of physics governs airplane evolutionLaw of physics governs airplane evolution

Speedy computation enables scientists to reconstruct an animal's development cell by cellSpeedy computation enables scientists to reconstruct an animal's development cell by cell

Brain waves show learning to read does not end in 4th grade, contrary to popular theory

Running for life: How speed restricts evolutionary change of the vertebral columnRunning for life: How speed restricts evolutionary change of the vertebral column

Asteroid Vesta to reshape theories of planet formationAsteroid Vesta to reshape theories of planet formation

Is the universe a bubble? Let's checkIs the universe a bubble? Let's check

Postcards from the photosynthetic edgePostcards from the photosynthetic edge

The bend in the Appalachian mountain chain is finally explainedThe bend in the Appalachian mountain chain is finally explained

Sophisticated radiation detector designed for broad public useSophisticated radiation detector designed for broad public use

Cooperation among humans, a question of ageCooperation among humans, a question of age

Protein's 'hands' enable bacteria to establish infection, research findsProtein's 'hands' enable bacteria to establish infection, research finds

Less exercise, not more calories, responsible for expanding waistlinesLess exercise, not more calories, responsible for expanding waistlines

High earners in a stock market game have brain patterns that can predict market bubblesHigh earners in a stock market game have brain patterns that can predict market bubbles

A healthy lifestyle adds years to lifeA healthy lifestyle adds years to life

Platonic solids generate their 4-dimensional analoguesPlatonic solids generate their 4-dimensional analogues

Study of animal urination could lead to better-engineered productsStudy of animal urination could lead to better-engineered products

Do probiotics help kids with stomach bugs?Do probiotics help kids with stomach bugs?

Strict diet suspends development, doubles lifespan of wormsStrict diet suspends development, doubles lifespan of worms

Identified for the first time what kind of explosive has been used after the detonationIdentified for the first time what kind of explosive has been used after the detonation

Copied from nature: Detecting software errors via genetic algorithmsCopied from nature: Detecting software errors via genetic algorithms

Will bubble-powered microrockets zoom through the human stomach? (2/10/2012)

Tags:
propulsion, medical implants

Scientists have developed a new kind of tiny motor - which they term a "microrocket" - that can propel itself through acidic environments, such as the human stomach, without any external energy source, opening the way to a variety of medical and industrial applications. Their report in the Journal of the American Chemical Society describes the microrockets traveling at virtual warp speed for such devices. A human moving at the same speed would have to run at a clip of 400 miles per hour.

Joseph Wang and colleagues explain that self-propelled nano- or microscale motors could have applications in targeted drug delivery or imaging in humans or as a way to monitor industrial applications, such as semiconductor processing. However, some versions of these small-scale motors are not self-propelled and require the addition of a fuel (commonly hydrogen peroxide). Other versions cannot withstand extreme environments such as the stomach, which is very acidic. That's why the researchers developed a new, tubular microrocket that can move itself without added fuels in very acidic conditions.

They tested the new microrocket in various acids and in acidified human blood serum. In such environments, a microrocket spontaneously produces bubbles of hydrogen gas, which propels it like the gases spewing out of a rocket's motor nozzle. The microrocket is ultrafast - it can move farther than 100 times its 0.0004-inch length in just one second. In contrast to current devices of this kind, the microrocket's interior is lined with zinc, which is more biocompatible and "greener" than other materials and leads to the generation of the hydrogen bubbles. Wang's team also developed a version with a magnetic layer, which enabled them to guide the microrockets toward cargo for pick-up, transport and release.

Note: This story has been adapted from a news release issued by the American Chemical Society

Post Comments:

Search
New Articles
Artificial intelligence identifies the musical progression of the Beatles

Using a deacetyl chitin conduit and short-term electrical stimulation for PNI

Getting a grip on robotic graspGetting a grip on robotic grasp

Squishy robots

Virtual finger enables scientists to navigate and analyze complex 3D images

Potential new therapy with brain-on-a-chip axonal strain injury modelPotential new therapy with brain-on-a-chip axonal strain injury model

DARPA selects Lawrence Livermore to develop world's first neural device to restore memoryDARPA selects Lawrence Livermore to develop world's first neural device to restore memory

Collisions with robots -- without risk of injuryCollisions with robots -- without risk of injury

Muscle-powered bio-bots walk on commandMuscle-powered bio-bots walk on command

Ask the crowd: Robots learn faster, better with online helpersAsk the crowd: Robots learn faster, better with online helpers

Collaborative learning -- for robots

Bioelectronics could lead to a new class of medicine

World's first magnetic hose createdWorld's first magnetic hose created

3-D computer model may help refine target for deep brain stimulation therapy for dystonia

Wearable computing gloves can teach Braille, even if you're not paying attentionWearable computing gloves can teach Braille, even if you're not paying attention



Archives
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007


Science Friends
Agricultural Science
Astronomy News
Sports Medicine
Biology News
Biomimicry Science
Cognitive Research
Chemistry News
Tissue Engineering
Cancer Research
Electonics Research
Forensics Report
Fossil News
Genetic Archaeology
Genetics News
Geology News
Microbiology Research
Nanotech News
Parenting News
Physics News


  Archives |  Submit News |  Advertise With Us |  Contact Us |  Links
Use of this site constitutes acceptance of our Terms of Service and Privacy Policy. All contents © 2000 - 2015 Web Doodle, LLC. All rights reserved.