Park, Nahee Suh, Dongseok Kang, Haeyong
Published in
Journal of the Korean Physical Society
Graphene transistors with a dual-gate structure have been fabricated to study the effects of a functional dielectric substrate. From graphene’s conductance modulation by using dual-gate voltage control in which a polymethyl methacrylate (PMMA) layer is employed as a top-gate dielectric, we propose that the interaction between the graphene and the f...
Dalila, N. R. Arshad, M. K. Md Gopinath, Subash C. B. Nuzaihan, M. N. M Fathil, M. F. M.
Published in
Microchimica Acta
Nanofabricated gold nanoparticles (Au-NPs) on MoS2 nanosheets (Au-NPs/MoS2) in back-gated field-effect transistor (BG-FET) are presented, which acts as an efficient semiconductor device for detecting a low concentration of C-reactive protein (C-RP). The decorated nanomaterials lead to an enhanced electron conduction layer on a 100-μm-sized transduc...
Zhang, Siqing Liu, Yan Zhou, Jiuren Ma, Meng Gao, Anyuan Zheng, Binjie Li, Lingfei Su, Xin Han, Genquan Zhang, Jincheng
...
Published in
Nanoscale Research Letters
Ferroelectric field effect transistor (FeFET) emerges as an intriguing non-volatile memory technology due to its promising operating speed and endurance. However, flipping the polarization requires a high voltage compared with that of reading, impinging the power consumption of writing a cell. Here, we report a CMOS compatible FeFET cell with low o...
Wang, Shiyu Hossain, Md Zakir Shinozuka, Kazuo Shimizu, Natsuhiko Kitada, Shunya Suzuki, Takaaki Ichige, Ryo Kuwana, Anna Kobayashi, Haruo
Published in
Biosensors & Bioelectronics
• Combining the outstanding electrical conductivity of graphene with the unique interaction between avidin and biotin, a novel graphene field-effect transistor (GFET) biosensor for quantitative detection of bio-macromolecules is demonstrated. • The present biosensor is capable of detecting the biotin with the sensitivity of 90 fg/ml (~0.37 pM) and ...
Chen, Xiaoyan Liu, Chengbin Mao, Shun
Published in
Nano-Micro Letters
Field-effect transistors (FETs) present highly sensitive, rapid, and in situ detection capability in chemical and biological analysis. Recently, two-dimensional (2D) transition-metal dichalcogenides (TMDCs) attract significant attention as FET channel due to their unique structures and outstanding properties. With the booming of studies on TMDC FET...
Wang, Hui Liu, Yang Wang, Jun Xiong, Benhai Hou, Xiaopeng
Published in
Microchimica Acta
RNA-cleaving DNAzyme is a very useful biomaterial for metal ions determination. However, parts of DNAzymes can be cleaved by several metal ions, which makes it difficult to distinguish the concentrations of different metal ions. A method was applied to determine the Cu(II) concentration by using electrochemical biosensors combined with a mathematic...
Fenoy, Gonzalo E Marmisollé, Waldemar A Azzaroni, Omar Knoll, Wolfgang
Published in
Biosensors & bioelectronics
We present a new strategy of Acetylcholinesterease (AchE) immobilization on graphene field-effect transistors (gFETs) for building up Acetylcholine sensors. This method is based on the electrosynthesis of an amino moiety-bearing polymer layer on the graphene channel. The film of the copolymer poly(3-amino-benzylamine-co-aniline) (PABA) does not onl...
Zhou, Xinyuan Yang, Liping Bian, Yuzhi Wang, Ying Han, Ning Chen, Yunfa
Detecting high-concentration gases is challenging by metal oxide semiconductor (MOX) gas sensors, because the voltage signal would become saturated. In order to solve this problem, the zooming p + n field-effect transistors (FETs) circuit has been designed, combining an n-type enhancement-mode FET (EMFET) and a p-type depletion-mode FET (DMFET). Th...
Zhou, Xinyuan Yang, Liping Bian, Yuzhi Wang, Ying Han, Ning Chen, Yunfa
Detecting high-concentration gases is challenging by metal oxide semiconductor (MOX) gas sensors, because the voltage signal would become saturated. In order to solve this problem, the zooming p + n field-effect transistors (FETs) circuit has been designed, combining an n-type enhancement-mode FET (EMFET) and a p-type depletion-mode FET (DMFET). Th...
Son, B. H. Ahn, Y. H.
Published in
Journal of the Korean Physical Society
In this study, we proposed a fast and effective technique to remove residual poly(methyl methacrylate) (PMMA) after its use as a supporting layer for transferring graphene films on a large scale with high productivity. We utilized a methyl isobutyl ketone (MIBK) solution, which is commonly used to develop PMMA layers, for an e-beam lithography proc...
