Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > An Inkjet-Printed Field-Effect Transistor for Label-Free Biosensing

Abstract:
Researchers from the ICN2's Nanobioelectronics and Biosensors Group, led by the ICREA Prof. Arben Merkoši, published in Advanced Functional Materials an important starting point for the design and fabrication of flexible, organic biosensing devices by inkjet printing.

An Inkjet-Printed Field-Effect Transistor for Label-Free Biosensing

Barcelona, Spain | Posted on August 11th, 2014

Thin-film transistors (TFTs) are powerful devices in semiconductor manufacturing and form the basis of countless electronic devices, such as memory chips, photovoltaic cells, logic gates, and sensors. An interesting alternative to inorganic TFTs (silicon) is organic TFTs (OTFTs), which offer the possibility of mass production by using the conventional printing technology and working with low-cost materials. However, numerous inherent problems still remain, especially concerning the long-term stability and lack of reliability.

Researchers from the Institut CatalÓ de NanociŔncia i Nanotecnologia's (ICN2 - Catalan Institute of Nanoscience and Nanotechnology) Nanobioelectronics and Biosensors Group, led by the ICREA Research Prof Arben Merkoši, work to get OTFTs closer to devices which can be fully applied in field applications. The Group published in the last issue of Advanced Functional Materials an article describing a flexible, biological field-effect transistor (BioFET) for use in biosensing. The fabrication, structure, materials optimization, electrical characteristics, and functionality of the starting OTFT and final BioFET are also discussed. The authors of the article are Dr Mariana Medina-Sßnchez, Dr Carme MartÝnez-Domingo, Dr Eloi Ramon, and ICREA Research Prof Arben Merkoši.

A fully integrated organic BioFET was designed, fabricated and tested for label-free protein detection. It was made by inkjet printing of an organic field-effect transistor (OFET) and subsequent functionalization of the insulator with specific antibodies. ICN2 researchers analysed different insulators, the biofunctionalization of the surface, the selective adhesion of target proteins to the BioFET, the repeatability with different devices and the roughness of functionalized and immobilized protein structures. Finally, as proof of concept, the BioFET platform was successfully tested for detection of the model protein, human immunoglobulin G (HIgG).

The BioFET designed at ICN2 represents an important starting point for the design and fabrication of flexible, organic biosensing devices by inkjet printing. The reproducibility in the fabrication process, the development of functional inks and extension of this technology to a wider array of substrates are still unsolved issues. The authors are confident that once this technology has matured, it will be amenable to miniaturization for integration into a fully functional device for point-of-care diagnosis.

####

For more information, please click here

Contacts:
└lex ArgemÝ
ICN2
Marketing and Communication Manager

Copyright © ICN2

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 Links

Article Reference:

Related News Press

News and information

Strength of hair inspires new materials for body armor January 18th, 2017

Self-assembling particles brighten future of LED lighting January 18th, 2017

Dressing a metal in various colors: DGIST research developed a technology to coat metal with several nanometers of semiconducting materials January 17th, 2017

Nanoparticle exposure can awaken dormant viruses in the lungs January 17th, 2017

Thin films

New material with ferroelectricity and ferromagnetism may lead to better computer memory December 21st, 2016

ANU invention to inspire new night-vision specs December 7th, 2016

Ultra-thin ferroelectric material for next-generation electronics October 12th, 2016

Continuous roll-process technology for transferring and packaging flexible LSI August 29th, 2016

Chip Technology

Dressing a metal in various colors: DGIST research developed a technology to coat metal with several nanometers of semiconducting materials January 17th, 2017

Seeing the quantum future... literally: What if big data could help you see the future and prevent your mobile phone from breaking before it happened? January 16th, 2017

NUS researchers achieve major breakthrough in flexible electronics: New classes of printable electrically conducting polymer materials make better electrodes for plastic electronics and advanced semiconductor devices January 14th, 2017

Nanoscale Modifications can be used to Engineer Electrical Contacts for Nanodevices January 13th, 2017

Memory Technology

Investigations of the skyrmion Hall effect reveal surprising results: One step further towards the application of skyrmions in spintronic devices December 28th, 2016

New material with ferroelectricity and ferromagnetism may lead to better computer memory December 21st, 2016

Characterization of magnetic nanovortices simplified December 21st, 2016

New technology of ultrahigh density optical storage researched at Kazan University: The ever-growing demand for storage devices stimulates scientists to find new ways of improving the performance of existing technologies November 30th, 2016

Sensors

Nanoscale Modifications can be used to Engineer Electrical Contacts for Nanodevices January 13th, 2017

Researchers create practical and versatile microscopic optomechanical device: Trapping light and mechanical waves within a tiny bullseye, design could enable more sensitive motion detection January 11th, 2017

STMicroelectronics Peps Up Booming Social-Fitness Scene with Smart Motion Sensors for Better Accuracy, Longer Battery Life, and Faster Time to Market January 2nd, 2017

Advance in intense pulsed light sintering opens door to improved electronics manufacturing December 23rd, 2016

Discoveries

Strength of hair inspires new materials for body armor January 18th, 2017

Self-assembling particles brighten future of LED lighting January 18th, 2017

Dressing a metal in various colors: DGIST research developed a technology to coat metal with several nanometers of semiconducting materials January 17th, 2017

Nanoparticle exposure can awaken dormant viruses in the lungs January 17th, 2017

Announcements

Strength of hair inspires new materials for body armor January 18th, 2017

Self-assembling particles brighten future of LED lighting January 18th, 2017

Dressing a metal in various colors: DGIST research developed a technology to coat metal with several nanometers of semiconducting materials January 17th, 2017

Nanoparticle exposure can awaken dormant viruses in the lungs January 17th, 2017

Solar/Photovoltaic

Dressing a metal in various colors: DGIST research developed a technology to coat metal with several nanometers of semiconducting materials January 17th, 2017

Stability challenge in perovskite solar cell technology: New research reveals intrinsic instability issues of iodine-containing perovskite solar cells December 26th, 2016

Going green with nanotechnology December 21st, 2016

Research Study: MetaSOLTM Shatters Solar Panel Efficiency Forecasts with Innovative New Coating: Coating Provides 1.2 Percent Absolute Enhancement to Triple Junction Solar Cells December 2nd, 2016

Printing/Lithography/Inkjet/Inks/Bio-printing

NUS researchers achieve major breakthrough in flexible electronics: New classes of printable electrically conducting polymer materials make better electrodes for plastic electronics and advanced semiconductor devices January 14th, 2017

Nanowire 'inks' enable paper-based printable electronics: Highly conductive films make functional circuits without adding high heat January 4th, 2017

Nanocubes simplify printing and imaging in color and infrared: New technology allows multispectral reactions on a single chip December 15th, 2016

Bumpy surfaces, graphene beat the heat in devices: Rice University theory shows way to enhance heat sinks in future microelectronics November 29th, 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