Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

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

Raman Whispering Gallery Detects Nanoparticles September 1st, 2014

A new, tunable device for spintronics: An international team of scientists including physicist Jairo Sinova from the University of Mainz realises a tunable spin-charge converter made of GaAs August 29th, 2014

Nanoscale assembly line August 29th, 2014

New Vice President Takes Helm at CNSE CMOST: Catherine Gilbert To Lead CNSE Children’s Museum of Science and Technology Through Expansion And Relocation August 29th, 2014

Nanomedicine

Nanoscale assembly line August 29th, 2014

Copper shines as flexible conductor August 29th, 2014

Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices August 28th, 2014

PetLife Comments on CNN Story on Scorpion Venom Health Benefits August 27th, 2014

Sensors

Copper shines as flexible conductor August 29th, 2014

Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices August 28th, 2014

RMIT delivers $30m boost to micro and nano-tech August 26th, 2014

Symphony of nanoplasmonic and optical resonators leads to magnificent laser-like light emission August 26th, 2014

Discoveries

Raman Whispering Gallery Detects Nanoparticles September 1st, 2014

A new, tunable device for spintronics: An international team of scientists including physicist Jairo Sinova from the University of Mainz realises a tunable spin-charge converter made of GaAs August 29th, 2014

Nanoscale assembly line August 29th, 2014

Copper shines as flexible conductor August 29th, 2014

Announcements

Raman Whispering Gallery Detects Nanoparticles September 1st, 2014

Nanoscale assembly line August 29th, 2014

New analytical technology reveals 'nanomechanical' surface traits August 29th, 2014

New Vice President Takes Helm at CNSE CMOST: Catherine Gilbert To Lead CNSE Children’s Museum of Science and Technology Through Expansion And Relocation August 29th, 2014

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

Raman Whispering Gallery Detects Nanoparticles September 1st, 2014

A new, tunable device for spintronics: An international team of scientists including physicist Jairo Sinova from the University of Mainz realises a tunable spin-charge converter made of GaAs August 29th, 2014

Nanoscale assembly line August 29th, 2014

New analytical technology reveals 'nanomechanical' surface traits August 29th, 2014

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







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE