Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > Press > Lactate test made easy

Fitness levels are indicated by the lactate value. At present, athletes have to pedal on a cycle ergometer while a doctor takes blood samples. Things will be easier in future.

Credit:  Fraunhofer IMS
Fitness levels are indicated by the lactate value. At present, athletes have to pedal on a cycle ergometer while a doctor takes blood samples. Things will be easier in future.

Credit: Fraunhofer IMS

Abstract:
Performance athletes need to know their blood lactate level. It indicates how much lactic acid has collected in their blood as a result of physical exertion and enables conclusions to be drawn about their fitness. Professional athletes therefore regularly have to attend performance diagnosis sessions. As they pedal a cycle ergometer at various levels of exertion, a doctor takes blood samples from an earlobe. A special device then measures the concentration of lactate in the blood.

Lactate test made easy

Germany | Posted on May 6th, 2009

Such scenarios will soon be a thing of the past. Using a miniaturized measuring system, performance and leisure athletes will in future be able to monitor their lactate readings themselves - including during training. Normally the analytical devices are quite big and cost several thousand euros. "We have found a way of miniaturizing the measurement system so that it can be accommodated in an ear clip. The results could be radioed by the ear clip to a training wristwatch or a cellphone," says Thomas van den Boom, group manager at the Fraunhofer Institute for Microelectronic Circuits and Systems IMS in Duisburg. An electrochemical method is used to measure the lactate value. In a chemical reaction, an enzyme triggers a redox flow from the lactate which can be measured using electrodes. The measurement system, which could be installed for example in an ear clip, consists of two microchips: the innovative nanopotentiostat fits on a chip measuring just two by three millimeters and costs less than one euro. "The second chip incorporates microelectrodes which we have developed for this purpose and which we can couple with the nanopotentiostat," explains van den Boom. One of the microelectrodes is coated with a thin layer of gel containing the enzyme. There are altogether three microelectrodes on the chip, which are activated by the nanopotentiostat. Two serve the purpose of electrochemical measurement while the third keeps the electrochemical potential constant end thus ensures a stable voltage.

The engineers can coat the electrode with different enzymes so that, apart from lactate measurement, various other analyses can be performed in the blood or other electrolytes. The advantage is that the electrodes are very small and cheap - and the analyses can be carried out in a mobile environment. A first demonstrator of the nanopotentiostat for lactate measurement (without earclip) has already been produced.

####

For more information, please click here

Contacts:
Thomas van den Boom

49-203-378-3207

Copyright © Fraunhofer-Gesellschaft

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Virginia Tech physicists propose path to faster, more flexible robots: Virginia Tech physicists revealed a microscopic phenomenon that could greatly improve the performance of soft devices, such as agile flexible robots or microscopic capsules for drug delivery May 17th, 2024

Gene therapy relieves back pain, repairs damaged disc in mice: Study suggests nanocarriers loaded with DNA could replace opioids May 17th, 2024

Shedding light on perovskite hydrides using a new deposition technique: Researchers develop a methodology to grow single-crystal perovskite hydrides, enabling accurate hydride conductivity measurements May 17th, 2024

Oscillating paramagnetic Meissner effect and Berezinskii-Kosterlitz-Thouless transition in cuprate superconductor May 17th, 2024

Discoveries

Virginia Tech physicists propose path to faster, more flexible robots: Virginia Tech physicists revealed a microscopic phenomenon that could greatly improve the performance of soft devices, such as agile flexible robots or microscopic capsules for drug delivery May 17th, 2024

Diamond glitter: A play of colors with artificial DNA crystals May 17th, 2024

Finding quantum order in chaos May 17th, 2024

Advances in priming B cell immunity against HIV pave the way to future HIV vaccines, shows quartet of new studies May 17th, 2024

Announcements

Virginia Tech physicists propose path to faster, more flexible robots: Virginia Tech physicists revealed a microscopic phenomenon that could greatly improve the performance of soft devices, such as agile flexible robots or microscopic capsules for drug delivery May 17th, 2024

Diamond glitter: A play of colors with artificial DNA crystals May 17th, 2024

Finding quantum order in chaos May 17th, 2024

Oscillating paramagnetic Meissner effect and Berezinskii-Kosterlitz-Thouless transition in cuprate superconductor May 17th, 2024

Sports

Threads that sense how and when you move? New technology makes it possible: Engineers created thread sensors that can be attached to skin to measure movement in real time, with potential implications for tracking health and performance January 29th, 2021

Surrey reveals its implantable biosensor that operates without batteries May 22nd, 2020

Collagen nanofibrils in mammalian tissues get stronger with exercise December 14th, 2018

Epoxy compound gets a graphene bump: Rice scientists combine graphene foam, epoxy into tough, conductive composite November 14th, 2018

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project