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 Merkoçi, 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 Catalŕ de Nanocičncia i Nanotecnologia's (ICN2 - Catalan Institute of Nanoscience and Nanotechnology) Nanobioelectronics and Biosensors Group, led by the ICREA Research Prof Arben Merkoçi, 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-Sánchez, Dr Carme Martínez-Domingo, Dr Eloi Ramon, and ICREA Research Prof Arben Merkoçi.

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:
Ŕlex Argemí
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

Chains of nanogold – forged with atomic precision September 23rd, 2016

Tattoo therapy could ease chronic disease: Rice-made nanoparticles tested at Baylor College of Medicine may help control autoimmune diseases September 23rd, 2016

Nanotech Grants Options September 22nd, 2016

Coffee-infused foam removes lead from contaminated water September 21st, 2016

Thin films

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

Self-cleaning, anti-reflective, microorganism-resistant coatings: Researchers at the UPV/EHU-University of the Basque Country are modifying surface properties of materials to obtain specific properties at a lower cost August 9th, 2016

Scientists find a way of acquiring graphene-like films from salts to boost nanoelectronics: Physicists use supercomputers to find a way of making 'imitation graphene' from salt July 30th, 2016

Cambridge Advanced Imaging Centre praises support film consistency and quality from EM Resolutions July 5th, 2016

Chip Technology

Mexican scientist in the Netherlands seeks to achieve data transmission ... speed of light September 20th, 2016

Towards Stable Propagation of Light in Nano-Photonic Fibers September 20th, 2016

PHENOMEN is a FET-Open Research Project aiming to lay the foundations a new information technology September 19th, 2016

NIST Patents Single-Photon Detector for Potential Encryption and Sensing Apps September 16th, 2016

Memory Technology

Making the switch, this time with an insulator: Colorado State University physicists, joining the fundamental pursuit of using electron spins to store and manipulate information, have demonstrated a new approach to doing so, which could prove useful in the application of low-powe September 2nd, 2016

Diamonds and quantum information processing on the nano scale August 31st, 2016

Magnetic atoms arranged in neat rows: FAU physicists enable one-dimensional atom chains to grow August 5th, 2016

New metamaterials can change properties with a flick of a light-switch: Material can lead to new optical devices August 3rd, 2016

Sensors

Chains of nanogold – forged with atomic precision September 23rd, 2016

Speedy bacteria detector could help prevent foodborne illnesses September 21st, 2016

NIST Patents Single-Photon Detector for Potential Encryption and Sensing Apps September 16th, 2016

Notre Dame researchers find transition point in semiconductor nanomaterials September 6th, 2016

Discoveries

Chains of nanogold – forged with atomic precision September 23rd, 2016

Tattoo therapy could ease chronic disease: Rice-made nanoparticles tested at Baylor College of Medicine may help control autoimmune diseases September 23rd, 2016

Speedy bacteria detector could help prevent foodborne illnesses September 21st, 2016

Coffee-infused foam removes lead from contaminated water September 21st, 2016

Announcements

Chains of nanogold – forged with atomic precision September 23rd, 2016

Tattoo therapy could ease chronic disease: Rice-made nanoparticles tested at Baylor College of Medicine may help control autoimmune diseases September 23rd, 2016

Nanotech Grants Options September 22nd, 2016

Coffee-infused foam removes lead from contaminated water September 21st, 2016

Solar/Photovoltaic

Semiconducting inorganic double helix: New flexible semiconductor for electronics, solar technology and photo catalysis September 15th, 2016

New perovskite research discoveries may lead to solar cell, LED advances September 12th, 2016

NREL discovery creates future opportunity in quantum computing: Research into perovskites looks beyond material's usage for efficient solar cells September 9th, 2016

NREL Discovery Creates Future Opportunity in Quantum Computing: Research into perovskites looks beyond material’s usage for efficient solar cells September 1st, 2016

Printing/Lithography/Inkjet/Inks/Bio-printing

Iran to hold intl. school on application of nanomaterials in medicine September 20th, 2016

Tailored probes for atomic force microscopes: 3-D laser lithography enhances microscope for studying nanostructures in biology and engineering/ publication in Applied Physics Letters August 11th, 2016

Smarter self-assembly opens new pathways for nanotechnology: Brookhaven Lab scientists discover a way to create billionth-of-a-meter structures that snap together in complex patterns with unprecedented efficiency August 9th, 2016

Nanoscientists develop the 'ultimate discovery tool': Rapid discovery power is similar to what gene chips offer biology June 25th, 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