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


More Articles
The story of animal domestication retoldThe story of animal domestication retold

Diffeomorphometry and geodesic positioning systems for human anatomyDiffeomorphometry and geodesic positioning systems for human anatomy

Thermoelectric generator on glass fabric for wearable electronic devicesThermoelectric generator on glass fabric for wearable electronic devices

Scientists grow cartilage to reconstruct noseScientists grow cartilage to reconstruct nose

Researchers develop ErSb nanostructures with applications in infrared and terahertz rangesResearchers develop ErSb nanostructures with applications in infrared and terahertz ranges

Appearance of night-shining clouds has increasedAppearance of night-shining clouds has increased

Ancient shark fossil reveals new insights into jaw evolutionAncient shark fossil reveals new insights into jaw evolution

Gecko-like adhesives now useful for real world surfacesGecko-like adhesives now useful for real world surfaces

Deadly human pathogen Cryptococcus fully sequencedDeadly human pathogen Cryptococcus fully sequenced

Vitamin B3 might have been made in space, delivered to Earth by meteoritesVitamin B3 might have been made in space, delivered to Earth by meteorites

Chemists' work with small peptide chains may revolutionize study of enzymes and diseasesChemists' work with small peptide chains may revolutionize study of enzymes and diseases

Satellite shows high productivity from US corn beltSatellite shows high productivity from US corn belt

Sperm meets egg: Protein essential for fertilization discoveredSperm meets egg: Protein essential for fertilization discovered

The surprising consequences of banning chocolate milkThe surprising consequences of banning chocolate milk

Researchers determine how mechanical forces affect T-cell recognition and signalingResearchers determine how mechanical forces affect T-cell recognition and signaling

Running geese give insight into low oxygen toleranceRunning geese give insight into low oxygen tolerance

Galactic serial killerGalactic serial killer

Positive, negative thinkers' brains revealedPositive, negative thinkers' brains revealed

Babies prefer fairness -- but only if it benefits them -- in choosing a playmateBabies prefer fairness -- but only if it benefits them -- in choosing a playmate

A new twist makes for better steel, researchers findA new twist makes for better steel, researchers find

Renewable energy market share climbs despite 2013 dip in investmentsRenewable energy market share climbs despite 2013 dip in investments

Study finds gaming augments players' social livesStudy finds gaming augments players' social lives

A breakthrough in creating invisibility cloaks, stealth technologyA breakthrough in creating invisibility cloaks, stealth technology

Overcoming structural uncertainty in computer modelsOvercoming structural uncertainty in computer models

Monkey caloric restriction study shows big benefit; contradicts earlier studyMonkey caloric restriction study shows big benefit; contradicts earlier study

Researchers developed world's first fluorescent sensor to detect date rape drugResearchers developed world's first fluorescent sensor to detect date rape drug

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

Turning back the clock on aging muscles?Turning back the clock on aging muscles?

New study finds differences in concussion risk between football helmetsNew study finds differences in concussion risk between football helmets

Microneedle sensors may allow real-time monitoring of body chemistry (12/14/2011)

Tags:
microneedles, sensors, medical implants
This is a scanning electron micrograph of a hollow microneedle, which was prepared out of an acrylate-based polymer. In this study, hollow microneedles were integrated with sensors for detection of glucose, lactate, and pH levels in a selective and simultaneous manner. -  Roger Narayan, North Carolina State University
This is a scanning electron micrograph of a hollow microneedle, which was prepared out of an acrylate-based polymer. In this study, hollow microneedles were integrated with sensors for detection of glucose, lactate, and pH levels in a selective and simultaneous manner. - Roger Narayan, North Carolina State University

Researchers from North Carolina State University, Sandia National Laboratories, and the University of California, San Diego have developed new technology that uses microneedles to allow doctors to detect real-time chemical changes in the body - and to continuously do so for an extended period of time.

"We've loaded the hollow channels within microneedles with electrochemical sensors that can be used to detect specific molecules or pH levels," says Dr. Roger Narayan, co-author of a paper describing the research, and a professor in the joint biomedical engineering department of NC State's College of Engineering and the University of North Carolina at Chapel Hill.

Existing technology relies on taking samples and testing them, whereas this approach allows continuous monitoring, Narayan explains. "For example, it could monitor glucose levels in a diabetic patient," Narayan says. Microneedles are very small needles in which at least one dimension - such as length - is less than one millimeter.

"The idea is that customized microneedle sensor arrays could be developed and incorporated into wearable devices, such as something like a wristwatch, to help answer specific medical or research questions," Narayan says. "It's also worth pointing out that microneedles are not painful."

In addition to its clinical applications, the new technology may also create opportunities for new research endeavors. For example, the microneedle sensor arrays could be used to track changes in lactate levels while people are exercising - rather than measuring those levels only before and after exercise.

The researchers developed a proof-of-concept sensor array incorporating three types of sensors, which could measure pH, glucose and lactate. However, Narayan says the array could be modified to monitor a wide variety of chemicals.

The paper, "Multiplexed Microneedle-based Biosensor Array for Characterization of Metabolic Acidosis," is published online in the journal Talanta. The paper was co-authored by Narayan and NC State Ph.D. students Philip Miller and Shelby Skoog as well as researchers from Sandia National Laboratories and the University of California, San Diego. The research was funded by the National Science Foundation, the National Institutes of Health, and the Department of Energy.

Note: This story has been adapted from a news release issued by the North Carolina State University

Post Comments:

Search
New Articles
Simplicity is key to co-operative robotsSimplicity is key to co-operative robots

Chiral breathing: Electrically controlled polymer changes its optical propertiesChiral breathing: Electrically controlled polymer changes its optical properties

Intelligent prosthetic liners could ease pain for lower limb amputees

Eye of the beholder -- improving the human-robot connection

Off the shelf, on the skin: Stick-on electronic patches for health monitoringOff the shelf, on the skin: Stick-on electronic patches for health monitoring

A robot walks into a bar...

New gel to promote bone growth on implants used in surgical proceduresNew gel to promote bone growth on implants used in surgical procedures

Artificial hearts may help patients survive until transplant

Researcher invents 'mini heart' to help return venous blood

In search of a few good apps

New implant shows promise for painful osteoporotic spine fractures

'RoboClam' replicates a clam's ability to burrow while using little energy

Most Charnley total hip replacements viable after 35 years

2.5 million Americans living with an artificial hip, 4.7 million with an artificial knee

Robotic fish designed to perform escape maneuvers described in Soft Robotics journalRobotic fish designed to perform escape maneuvers described in Soft Robotics journal



Archives
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.