Rapid and label-free bacteria detection using a hybrid tri-layer dielectric integrated n-type organic field effect transistor

2019 ◽  
Vol 7 (31) ◽  
pp. 18330-18337 ◽  
Author(s):  
Anamika Dey ◽  
Ashish Singh ◽  
Deepanjalee Dutta ◽  
Siddhartha Sankar Ghosh ◽  
Parameswar Krishnan Iyer
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Low Voltage ◽  
Bacteria Detection ◽  
Label Free ◽  
Organic Field Effect Transistor ◽  
Live Bacteria ◽  
Effect Transistor

An ultra-low voltage operated n-type OFET device that could detect and distinguish live bacteria with an LOD of 103 cfu mL−1 is developed.

Device engineering for high-performance, low-voltage operating organic field effect transistor on plastic substrate

2017 ◽  
Vol 2 (4) ◽  
pp. 045004 ◽  
Author(s):  
Geoffroy Houin ◽  
Frédéric Duez ◽  
Luc Garcia ◽  
Eugenio Cantatore ◽  
Lionel Hirsch ◽  
...  
Keyword(s):  
Field Effect ◽  
High Performance ◽  
Field Effect Transistor ◽  
Low Voltage ◽  
Plastic Substrate ◽  
Organic Field Effect Transistor ◽  
Effect Transistor ◽  
Device Engineering

Flexible-Blade Coating of Small Molecule Organic Semiconductor for Low Voltage Organic Field Effect Transistor

2017 ◽  
Vol 38 (3) ◽  
pp. 338-340 ◽  
Author(s):  
Li Ding ◽  
Jiaqing Zhao ◽  
Yukun Huang ◽  
Wei Tang ◽  
Sujie Chen ◽  
...  
Keyword(s):  
Small Molecule ◽  
Organic Semiconductor ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Low Voltage ◽  
Organic Field Effect Transistor ◽  
Effect Transistor ◽  
Blade Coating

scholarly journals Detection of 1,5-anhydroglucitol as a Biomarker for Diabetes Using an Organic Field-Effect Transistor-Based Biosensor

Technologies ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 77 ◽  
Author(s):  
Hiroyuki Furusawa ◽  
Yusuke Ichimura ◽  
Kuniaki Nagamine ◽  
Rei Shiwaku ◽  
Hiroyuki Matsui ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Low Voltage ◽  
Point Of Care ◽  
Low Cost ◽  
Transfer Characteristic ◽  
Organic Field Effect Transistor ◽  
Pyranose Oxidase ◽  
Effect Transistor ◽  
Inkjet Printing Technology

Sensor devices that can be fabricated on a flexible plastic film produced at a low cost using inkjet-printing technology are suitable for point-of-care applications. An organic field-effect transistor (OFET)-based biosensor can function as a potentiometric electrochemical sensor. To investigate the usefulness of an OFET-based biosensor, we demonstrated the detection of 1,5-anhydroglucitol (1,5-AG) and glucose, which are monosaccharides used as biomarkers of diabetes. An OFET-based biosensor combined with a Prussian blue (PB) electrode, modified with glucose oxidase (GOx) or pyranose oxidase (POx), was utilized for the detection of the monosaccharides. When the GOx- or POx-PB electrode was immersed in glucose solution at the determined concentration, shifts in the low-voltage direction of transfer characteristic curves of the OFET were observed to be dependent on the glucose concentrations in the range of 0–10 mM. For 1,5-AG, the curve shifts were observed only with the POx-PB electrode. Detection of glucose and 1,5-AG was achieved in a substrate-specific manner of the enzymes on the printed OFET-biosensor. Although further improvements are required in the detection concentration range, the plastic-filmOFET-biosensors will enable the measurement of not only diabetes biomarkers but also various other biomarkers.

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