Article
Physics, Condensed Matter
Lingling Guo, Qingtian Zhang, Kwok Sum Chan
Summary: The research team introduced a dual-gate field-effect transistor in graphene under off-resonant circularly polarized light, creating a graphene heterojunction by tuning carrier densities through top and back gates, with oscillating conductance due to Fabry-Perot resonances. The device acts as a promising field-effect transistor, controlled by gate voltages and off-resonant circularly polarized light, offering new possibilities for photon-controllable field-effect transistors and functioning as an optical sensor.
SUPERLATTICES AND MICROSTRUCTURES
(2021)
Article
Nanoscience & Nanotechnology
Jingwei Li, Abhishek Tyagi, Ting Huang, Hongwei Liu, Honglin Sun, Jiawen You, Md Masruck Alam, Xiangrong Li, Zhaoli Gao
Summary: All-electronic chemical sensors based on field-effect transistors have the potential for sensitive detection of arsenic in groundwater. However, their sensitivity is limited by a chemical gating mechanism. We have developed a highly sensitive aptasensor based on scalable graphene FETs, which detects arsenite through the conformational change of the aptamer, providing a wide analytical range and low detection limit. This work offers an accurate chemical sensing platform for rapid detection of arsenic in drinking water.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Hua Kang, Xuejun Wang, Mingquan Guo, Changhao Dai, Renzhong Chen, Lei Yang, Yanling Wu, Tianlei Ying, Zhaoqin Zhu, Dapeng Wei, Yunqi Liu, Dacheng Wei
Summary: The development of a graphene field-effect transistor (g-FET) biosensor has enabled ultrasensitive detection of SARS-CoV-2 antibodies with rapid and precise diagnosis capabilities. This technology holds great promise in future prevention and control of other epidemic outbreaks.
Article
Chemistry, Analytical
Manoharan Arun Kumar, Ramasamy Jayavel, Shanmugam Mahalingam, Junghwan Kim, Raji Atchudan
Summary: Universal platforms utilizing sensor devices to analyze biomolecules can effectively address diagnostic challenges. Graphene-based field-effect transistors, such as the Graphene Field-Effect Transistor (GFET) devices, are capable of sensing DNA hybridization, pH levels, and protein molecules, making them ideal for biomarker detection.
Article
Biophysics
Chishu Homma, Mirano Tsukiiwa, Hironaga Noguchi, Masayoshi Tanaka, Mina Okochi, Hideyuki Tomizawa, Yoshiaki Sugizaki, Atsunobu Isobayashi, Yuhei Hayamizu
Summary: Gas sensing using graphene field-effect transistors (GFETs) has attracted much attention for its high sensitivity. To further advance gas sensing with GFETs, the detection of various odor molecules is necessary for applications in environmental monitoring, healthcare, food, and cosmetic industries. In this study, three new peptides were designed and self-assembled into a molecular thin film on GFETs based on a motif sequence in olfactory receptors. The conductivity change of GFETs and the dynamic response demonstrated the ability of the designed peptides to sense different odor molecules with distinct signatures.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Analytical
Xiaohui Tang, Jean-Pierre Raskin, Nicolas Reckinger, Yiyi Yan, Nicolas Andre, Driss Lahem, Marc Debliquy
Summary: This work introduces a new measurement methodology for enhancing gas detection by tuning the magnitude and polarity of back-gate voltage of a field-effect transistor (FET)-based sensor. The aim is to simultaneously strengthen the sensor response and accelerate the sensor recovery. In addition, this methodology can consume less energy compared with conventional measurements by direct current bias.
Article
Materials Science, Multidisciplinary
Fuxue Wang, Xiaohu Dong, Zhong Wang, Hongfei Cui
Summary: An enhancement-mode GaN-based heterojunction field-effect transistor functionalized by glutathione was used to detect low concentrations of lead ions, exhibiting adjustable sensitivity with the change of drain voltage.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Sami Ramadan, Richard Lobo, Yuanzhou Zhang, Lizhou Xu, Olena Shaforost, Deana Kwong Hong Tsang, Jingyu Feng, Tianyi Yin, Mo Qiao, Anvesh Rajeshirke, Long R. Jiao, Peter K. Petrov, Iain E. Dunlop, Maria-Magdalena Titirici, Norbert Klein
Summary: Graphene field-effect transistors (GFETs) are ideal building blocks for high-performance electrical biosensors due to the strong response to charged biomolecules. By decorating the graphene sensor area with carbon dots (CDs), the detection limit of GFET biosensors can be significantly improved, resulting in higher sensitivity, faster response, and three orders of magnitude improvements in LoD.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Yang Sun, Shicai Xu, Tiying Zhu, Jiajun Lu, Shuo Chen, Maomao Liu, Guangcan Wang, Baoyuan Man, Huamin Li, Cheng Yang
Summary: In this study, a photocurrent-modulated FET sensor for DNA hybridization detection was proposed, achieving a detection limit down to attomolar concentrations. The sensor significantly enhances the response signal compared to traditional FET sensors, opening new avenues for further development in biosensing applications.
Article
Nanoscience & Nanotechnology
Bingjie Cai, Zunen Xia, Jiaying Wang, Sihong Wu, Xin Jin
Summary: Breast cancer is the most common malignant tumor in women, and early screening can reduce mortality. MiRNAs play a significant role in the early diagnosis and prognosis monitoring of breast cancer. In this study, a biosensor combining RGO and FETs was proposed for highly sensitive detection of miRNA21 in plasma without complex processing steps.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Wenbo Peng, Chenhong Wang, Fangpei Li, Yongning He
Summary: This paper investigates the basic characteristics of a photo-voltage field-effect transistor (FET) and demonstrates the modulation of the FET characteristics using both piezo-voltage and photo-voltage. The results show that strain induced piezo-voltage and illumination induced photo-voltage can effectively control the conduction channel thickness and current of the FET.
Article
Chemistry, Multidisciplinary
Henry Yu, Alex Kutana, Boris Yakobson
Summary: In this paper, we demonstrate the use of substrate topography to induce static pseudo-electromagnetic (EM) fields in graphene and study their effects on electron motion. Through trajectory analysis, we design various optical devices and propose a setup to achieve the valley Hall effect solely through substrate patterning. We also discuss the experimental verification of strain/pseudo-EM field patterns and their generalization to other 2D materials.
Review
Chemistry, Analytical
Pan Zhang, Yin Xiao, Jingjing Zhang, Bingjie Liu, Xiaofei Ma, Yong Wang
Summary: This comprehensive review discusses recent advances in FET gas sensors based on various materials, including sensor structures, gas-sensing mechanisms, optimization strategies, and key advances in gas sensing performance of the materials. Shortcomings of these materials are also addressed, along with proposed future directions in the field.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Zihong Lin, Guangfu Wu, Ling Zhao, King Wai Chiu Lai
Summary: The study utilized a graphene field-effect transistor (G-FET) to detect the volatile molecule indole released by Escherichia coli, based on a pi-pi stacking interaction between indole and graphene. The adsorption of indole caused a charge rearrangement in the graphene-indole complex, leading to changes in the electrical signal of G-FET biosensors. The indole biosensor demonstrated the ability to detect indole from 10 ppb to 250 ppb with a detection limit of 10 ppb.
Article
Nanoscience & Nanotechnology
Juan A. Delgado-Notario, Wojciech Knap, Vito Clerico, Juan Salvador-Sanchez, Jaime Calvo-Gallego, Takashi Taniguchi, Kenji Watanabe, Taiichi Otsuji, Vyacheslav V. Popov, Denis V. Fateev, Enrique Diez, Jesus E. Velazquez-Perez, Yahya M. Meziani
Summary: This study fabricated a graphene terahertz field-effect transistor with an asymmetric-dual-grating-gate and a continuous graphite back-gate, which enhanced the THz rectified signal by forming abrupt junctions with different potential barriers. This paves the way for new record performances of graphene THz nano-photodetectors.
Article
Nanoscience & Nanotechnology
Xiaoxiang Zhang, Songtao Hu, Meng Wang, Jia Yu, Qasim Khan, Jintang Shang, Long Ba
Article
Multidisciplinary Sciences
Lin Zhang, Bin Hu, Hang Song, Linjun Yang, Long Ba
SCIENTIFIC REPORTS
(2017)
Article
Chemistry, Multidisciplinary
Guangyao Lin, Yong Wang, Qianjun Zhang, Xiaoxiang Zhang, Gang Ji, Long Ba
Article
Nanoscience & Nanotechnology
Jiye Fu, Yi Qiao, Hang Song, Zheyun Xu, Jing Tu, Long Ba, Zuhong Lu
Article
Nanoscience & Nanotechnology
Haiou Wang, Long Ba, Feng Zhou, Chun Hua, Shifeng Cao, Sara Shamim
NANOSCIENCE AND NANOTECHNOLOGY LETTERS
(2019)
Article
Nanoscience & Nanotechnology
Zhihao Yang, Chaoyi Yin, Haiyang Lu, Hao Wu, Sara Shamin, Long Ba
Summary: This study proposed a technique for fabricating continuous polymer fibers coated with 1D materials, which resulted in conductive fibers with high strain durability and maintained good conductivity during use. By alternately coating conducting carbon black/polyurethane composites, single-walled carbon nanotubes, and/or silver nanowires on Nylon-6 continuous fiber, a compact conducting shell was formed on the core fiber. The conductive fiber exhibited high conductivity and remained functional even after repeated folding or knotting.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Physics, Multidisciplinary
Chaoyi Yin, Ruifang Liu, Zhangyou Zheng, Long Ba
Summary: In this study, electronic ink microcapsules were combined with fabrics to create a flexible and reversible electrochromic electronic fabric. By applying voltage, the microcapsules underwent electrophoretic discoloration, allowing for the formation of large-area flexible electrochromic fabrics.
Article
Engineering, Chemical
Chaoyi Yin, Jingyuan Ma, Jian Qiu, Ruifang Liu, Long Ba
Summary: Electrocoagulation is an ecologically friendly water treatment method with high treatment effectiveness and simple equipment. A study proposes a method for using a revolutionary flexible electronic fabric to treat wastewater containing azo dyes. The fabric is embroidered with stainless steel fibers to create a flexible electronic device with cathode and anode. Experimental results show a high decolorization rate under specific conditions. The method has practical application value.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Physics, Applied
L Ba, WS Li
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2000)