scholarly journals Graphene field effect transistors for highly sensitive and selective detection of K+ ions

2017 ◽  
Vol 253 ◽  
pp. 759-765 ◽  
Author(s):  
Hongmei Li ◽  
Yihao Zhu ◽  
Md. Sayful Islam ◽  
Md Anisur Rahman ◽  
Kenneth B. Walsh ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistors ◽  
Selective Detection ◽  
Highly Sensitive

scholarly journals Aptamer–field-effect transistors overcome Debye length limitations for small-molecule sensing

Science ◽  
2018 ◽  
Vol 362 (6412) ◽  
pp. 319-324 ◽  
Author(s):  
Nako Nakatsuka ◽  
Kyung-Ae Yang ◽  
John M. Abendroth ◽  
Kevin M. Cheung ◽  
Xiaobin Xu ◽  
...  
Keyword(s):  
Conformational Changes ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Debye Length ◽  
Stem Loop ◽  
Highly Sensitive ◽  
Close Proximity ◽  
Sphingosine 1 Phosphate ◽  
Specific Receptors ◽  
Highly Sensitive Detection

Detection of analytes by means of field-effect transistors bearing ligand-specific receptors is fundamentally limited by the shielding created by the electrical double layer (the “Debye length” limitation). We detected small molecules under physiological high–ionic strength conditions by modifying printed ultrathin metal-oxide field-effect transistor arrays with deoxyribonucleotide aptamers selected to bind their targets adaptively. Target-induced conformational changes of negatively charged aptamer phosphodiester backbones in close proximity to semiconductor channels gated conductance in physiological buffers, resulting in highly sensitive detection. Sensing of charged and electroneutral targets (serotonin, dopamine, glucose, and sphingosine-1-phosphate) was enabled by specifically isolated aptameric stem-loop receptors.

scholarly journals Selective Detection of Cu2+ Ions by Immobilizing Thiacalix[4]arene on Graphene Field-Effect Transistors

ACS Omega ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 877-881 ◽  
Author(s):  
Yuki Takagiri ◽  
Takashi Ikuta ◽  
Kenzo Maehashi
Keyword(s):  
Field Effect ◽  
Field Effect Transistors ◽  
Selective Detection

Flexible Monolayer Molecular Crystal‐Field Effect Transistors for Ultrasensitive and Selective Detection of Dimethoate

2020 ◽  
Vol 6 (11) ◽  
pp. 2000579
Author(s):  
Fei Qiu ◽  
Jie Liu ◽  
Hantang Zhang ◽  
Haiyang Li ◽  
Jianghong Liu ◽  
...  
Keyword(s):  
Crystal Field ◽  
Molecular Crystal ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Selective Detection ◽  
Crystal Field Effect

scholarly journals Gas adsorption and light interaction mechanism in phosphorene-based field-effect transistors

2020 ◽  
Vol 22 (10) ◽  
pp. 5949-5958 ◽  
Author(s):  
Manthila Rajapakse ◽  
George Anderson ◽  
Congyan Zhang ◽  
Rajib Musa ◽  
Jackson Walter ◽  
...  
Keyword(s):  
Schottky Barrier ◽  
Field Effect ◽  
Gas Adsorption ◽  
Field Effect Transistors ◽  
Interaction Mechanism ◽  
Metal Contact ◽  
Contact Interface ◽  
Sensing Mechanism ◽  
Highly Sensitive ◽  
Barrier Model

Phosphorene-based field effect transistors are fabricated and are shown to be highly sensitive gas and photodetectors. The sensing mechanism is explained using a Schottky barrier model at the phosphorene/metal contact interface.

Selective detection of heavy metal ions by self assembled chemical field effect transistors

2015 ◽  
Vol 106 (16) ◽  
pp. 163102 ◽  
Author(s):  
Hang Ruan ◽  
Yuhong Kang ◽  
Elizabeth Gladwin ◽  
Richard O. Claus
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Selective Detection ◽  
Self Assembled

scholarly journals Highly Sensitive NH3 Detection Based on Organic Field-Effect Transistors with Tris(pentafluorophenyl)borane as Receptor

2012 ◽  
Vol 134 (36) ◽  
pp. 14650-14653 ◽  
Author(s):  
Weiguo Huang ◽  
Kalpana Besar ◽  
Rachel LeCover ◽  
Ana María Rule ◽  
Patrick N. Breysse ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Highly Sensitive
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