Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Application of Gold Nanosensors to Measure Blood Clotting Agent

Abstract:
Iranian researchers from Shiraz University in association with researchers from Razi Kermanshah University used gold nanoparticles and designed sensors to measure heparin in blood plasmon samples.

Application of Gold Nanosensors to Measure Blood Clotting Agent

Tehran, Iran | Posted on September 24th, 2013

The sensor is not sensitive to the pH of the environment and it can be used at all pH values, including physiologic pH. It has many applications in clinics and hospitals to diagnose the disease.

Heparin plays an important role in the clotting of blood, and its performance depends on its concentration in the blood. Therefore, it is highly important to measure the amount of this material in blood plasmon in patients who suffer from cardiovascular illnesses.

Heparin is a polyanion chemical compound that has negative charges. In the previous methods to measure heparin by using gold nanoparticles, the environment pH had to become acidic so the nanoparticles would have positive charges. According to Coulomb interaction between the positive charges of nanoparticles and negative charges of heparin, the colloidal nanoparticles aggregated and the space between them was very small. As a result, the color of the solution changed due to the changes in gold resonance plasmon spectrum. Ionic liquid based on imidazole were used in this research instead of the common filling agents. By controlling the concentration of ionic liquids, positive charges are formed on the surface of nanoparticles. Interestingly, the positive charge is independent of pH value, and this characteristic was used in this research.

The produced sensor is very sensitive to heparin and it can be used in in-situ analysis. The most important characteristic of the sensor is its functionality at physiologic pH. Results of the research also showed the possibility of the use of a camera to take photos to analyze heparin instead of using spectrophotometer device.

Results of the research have been published in May 2013 in Analyst, vol. 138, pp. 4830-4837.

####

For more information, please click here

Copyright © Fars News Agency

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

Dartmouth team creates new method to control quantum systems May 24th, 2016

Light can 'heal' defects in new solar cell materials: Defects in some new electronic materials can be removed by making ions move under illumination May 24th, 2016

Attosecond physics: A switch for light-wave electronics May 24th, 2016

Supercrystals with new architecture can enhance drug synthesis May 24th, 2016

Nanomedicine

Supercrystals with new architecture can enhance drug synthesis May 24th, 2016

Nanoscale Trojan horses treat inflammation May 24th, 2016

Programmable materials find strength in molecular repetition May 23rd, 2016

Tiny packages may pack powerful treatment for brain tumors: Nanocarrier provides efficient delivery of chemotherapeutic drug May 23rd, 2016

Sensors

Dartmouth team creates new method to control quantum systems May 24th, 2016

Electronic device detects molecules linked to cancer, Alzheimer's and Parkinson's: An inexpensive portable biosensor has been developed by researchers at Brazil's National Nanotechnology Laboratory with FAPESP's support May 20th, 2016

Making organs transparent to improve nanomedicine (video) May 13th, 2016

Scientists take a major leap toward a 'perfect' quantum metamaterial: Berkeley Lab, UC Berkeley researchers lead study that uses trapped atoms in an artificial crystal of light May 13th, 2016

Discoveries

Dartmouth team creates new method to control quantum systems May 24th, 2016

Light can 'heal' defects in new solar cell materials: Defects in some new electronic materials can be removed by making ions move under illumination May 24th, 2016

Attosecond physics: A switch for light-wave electronics May 24th, 2016

Supercrystals with new architecture can enhance drug synthesis May 24th, 2016

Announcements

Dartmouth team creates new method to control quantum systems May 24th, 2016

Light can 'heal' defects in new solar cell materials: Defects in some new electronic materials can be removed by making ions move under illumination May 24th, 2016

Attosecond physics: A switch for light-wave electronics May 24th, 2016

Supercrystals with new architecture can enhance drug synthesis May 24th, 2016

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Dartmouth team creates new method to control quantum systems May 24th, 2016

Light can 'heal' defects in new solar cell materials: Defects in some new electronic materials can be removed by making ions move under illumination May 24th, 2016

Attosecond physics: A switch for light-wave electronics May 24th, 2016

Supercrystals with new architecture can enhance drug synthesis May 24th, 2016

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




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic