Home > Press > Polypyrrole Films Open New Window for Production of Ammonia Biosensors
Abstract:
Researchers from Tarbiat Modarres University used a doped polypyrrole nanostructured film as an optical nanosensor sensitive to ammonia gas.
Polypyrrole Films Open New Window for Production of Ammonia Biosensors
Tehran, Iran | Posted on January 19th, 2013High selectivity of ammonia through a simple and cost-effective method with appropriate response time is among the advantages of this nanosensor, which enables its application in commercial and medical kits in order to measure the amount of ammonia in various samples.
In this research, the polypyrrole film doped with a dye is coated on polystyrene through chemical polymerization. Various parameters that affect the homogeneity, stability, and the change in the optical behavior of the film coated on the bed were optimized, and the changes in optical properties of the synthesized film were studied in the presence of ammonia in order to design the optical sensor.
The dye used in the nanosensor is a dopant and it contains acidic groups that can react with ammonia, which has alkaline properties, and it can change the color of the thin film in the dye adsorption wavelength.
Results of the research show that the produced sensor has acceptable selectivity and sensitivity to ammonia in comparison to the vapor of other amines such as methylamine and also to methanol, ethanol, acetonitrile, acetone, hexane, pyridine, and water.
Taking into consideration its low determination range and high response rate, this sensor can be used in medical industries in order to diagnose diseases. It can also be used in portable measurements due to its volume and its simple design.
Results of the research have been published in detail in Sensors and Actuators B: Chemical, vol. 176, pp. 761-767.
####
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:
| Related News Press |
News and information
Closing the gaps — MXene-coating filters can enhance performance and reusability February 28th, 2025
Rice researchers harness gravity to create low-cost device for rapid cell analysis February 28th, 2025
Nanomedicine
Multiphoton polymerization: A promising technology for precision medicine February 28th, 2025
Rice researchers harness gravity to create low-cost device for rapid cell analysis February 28th, 2025
SMART researchers pioneer first-of-its-kind nanosensor for real-time iron detection in plants February 28th, 2025
Sensors
Quantum engineers ‘squeeze’ laser frequency combs to make more sensitive gas sensors January 17th, 2025
Beyond wires: Bubble technology powers next-generation electronics:New laser-based bubble printing technique creates ultra-flexible liquid metal circuits November 8th, 2024
Nanotechnology: Flexible biosensors with modular design November 8th, 2024
Discoveries
Closing the gaps — MXene-coating filters can enhance performance and reusability February 28th, 2025
Rice researchers harness gravity to create low-cost device for rapid cell analysis February 28th, 2025
Announcements
Closing the gaps — MXene-coating filters can enhance performance and reusability February 28th, 2025
Rice researchers harness gravity to create low-cost device for rapid cell analysis February 28th, 2025
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||