Article
Chemistry, Analytical
Jiang Zhao, Caidong Zheng, Jing Gao, Jiahao Gui, Licheng Deng, Yanyan Wang, Rongqing Xu
Summary: In this study, a flexible Co3O4 NPs-LIG electrode was successfully fabricated using a one-step laser direct writing carbonization technique, showing enhanced glucose sensing performance through the synergistic effect of highly conductive LIG and multiple activation sites of Co3O4 NPs. The proposed flexible non-enzymatic glucose biosensor exhibited outstanding sensitivity, ultra-low detection limit, wide linear detection range, and fast response time, as well as impressive repeatability, stability, and selectivity. This research provides a novel strategy for constructing hetero-structure bio sensors, paving the way for the development of flexible and wearable biosensors for detecting glucose in the future.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Spectroscopy
Xinhui Hou, Yifan Song, Hengquan Zhou, Lei Guo, Guiying Li, Qian Tao
Summary: A novel turn-on fluorescent sensor based on chitosan coating mesoporous silica nanoparticles loaded with 1-(4-Aminophenyl)-1,2,2-triphenylethene and silver nanoparticles was developed for hydrogen peroxide detection. The sensor exhibited high sensitivity and selectivity, even in the presence of interfering ions and agents. The performance of the sensor was thoroughly characterized using various analytical techniques.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Physical
Pinak Chakraborty, Nitumoni Deka, Dulal Chandra Patra, Kamalesh Debnath, Suvra Prakash Mondal
Summary: The study focuses on the development of porous NiO nanostructures based electrodes for non-invasive glucose sensing from saliva samples. The optimized electrode showed excellent glucose sensitivity and fast response time, making it a potential low-cost, portable, and efficient biosensor for disease monitoring.
SURFACES AND INTERFACES
(2021)
Article
Electrochemistry
Wen Zhang, Xinyue Zheng, Gan Jia, Hongzhong Chi, Bao Lin, Haiying Qin, Haijiao Xie, Yongjun Yuan, Degang Fu
Summary: In this study, octahedral-coordinated squarate-based MOFs were used as electrode materials for investigating dopamine oxidation, achieving detection of dopamine through interactions with dopamine molecules and demonstrating good selectivity and stability.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Inyalot Jude Tadeo, Rajasekar Parasuraman, Arun M. Umarji
Summary: The article introduces the synthesis, characterization, and gas sensing properties of V2O5 thin films prepared at different temperatures using ultrasonic nebulization. The V2O5-Qu-350 thin films exhibited the highest response towards ethanol and NO2, showing potential for detecting these gases in various environments.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Ceramics
Miao Miao Liu, Shu Yi Ma, Li Wang, Ya Hui Cai, Ni Na Ma
Summary: In this study, powdered SmFeO3 samples were prepared using a hydrothermal method combined with high temperature calcination. XRD was used to determine the crystal structure, SEM and TEM were used to evaluate the morphology and microstructure, and XPS was used to investigate the chemical makeup and valence state. The results confirmed that the prepared samples were SmFeO3 microspheres with a perovskite structure. A resistive gas sensor was prepared using the SmFeO3 microspheres as a sensing material and its gas sensing performance was tested. The results showed that the SmFeO3 sensor had a higher response (117) to 100 ppm ethylene glycol gas at lower operating temperatures (180 degrees C), and exhibited excellent repeatability, stability, and selectivity, making it a promising ethylene glycol sensor.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Analytical
Chong Liu, Yuchen Xie, Yingjiao Hou, Ziyi Wang, Xiaoyu Pan, Hong Zhu, Hongna Li
Summary: A selective and sensitive electrochemical enzyme-free sensor for dopamine detection was prepared using carbon nanomaterials, gold nanoparticles, and room-temperature ionic liquid. The study showed that carbon nanotube materials play a key role in catalytic performance for dopamine detection, with single-walled carbon nanotubes exhibiting the highest catalytic effect. pH conditions also influenced the detection of dopamine, uric acid, and ascorbic acid.
Article
Chemistry, Physical
Gajanan M. Hingangavkar, Sujit A. Kadam, Yuan-Ron Ma, Ramesh N. Mulik, Vikas B. Patil
Summary: Facile hydrothermal route was employed to prepare MoS2 nanoparticles (NPs) with superior specific surface area and hexagonal lattice structure. The MoS2 NPs demonstrated excellent gas sensing performance towards H2S gas, with a fast response and recovery time. It could detect as low as 1 ppm concentration of H2S gas.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Chemistry, Multidisciplinary
Zehui Li, Enze Tian, Shunli Wang, Meiyin Ye, Shujing Li, Ziyi Wang, Zizhen Ma, Guangya Jiang, Cheng Tang, Kaihui Liu, Jingkun Jiang
Summary: Sensors, as the foundation of the Internet of Things, are continuously improving the efficiency of human production and life through multi-disciplinary integration development. The emerging fields of medical diagnosis, environmental monitoring, and industrial safety have higher requirements for sensing capabilities. Single-atom catalysts (SACs) have attracted significant attention in various areas due to their high atom utilization efficiencies, controllable active sites, and structural/chemical stability, which extend the sensitivity and selectivity of sensors.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Analytical
Na Wang, Wei Tao, Xueqin Gong, Liupeng Zhao, Tianshuang Wang, Lianjing Zhao, Fangmeng Liu, Xiaomin Liu, Peng Sun, Geyu Lu
Summary: Three-dimensional hierarchical Cu2O-CuO microflowers assembled by nanorods were synthesized through an environmentally friendly hydrothermal route. The Cu2O-CuO microflowers-2 sensor exhibits excellent selectivity, repeatability, and long-term stability to NO2, with fast response and recovery time, even under high humidity conditions. Such superior sensing properties can be attributed to its unique structural advantages, more surface adsorbed oxygen, and the synergistic influence between the two-phase coexistence.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Biochemical Research Methods
Changtong Wu, Daria Barkova, Natalia Komarova, Andreas Offenhaeusser, Mariia Andrianova, Ziheng Hu, Alexander Kuznetsov, Dirk Mayer
Summary: An electrochemical aptamer-based sensor has been developed for glutamate, the major excitatory neurotransmitter in the central nervous system, with high selectivity and sensitivity, showing great potential for applications in microelectrodes and in vitro as well as in vivo monitoring of neurotransmitter release.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Yea Eun Hahm, Sungjoon Kweon, Min Bum Park, Yeong Don Park
Summary: Conductive polymers show potential for improving gas sensor performance compared to conventional inorganic metal oxide sensors, but their signal is hindered by poor charge carrier transport. This study demonstrates the combination of an organic transistor-type gas sensor and a zeolite with strong gas-adsorbing properties. The use of ZSM-5 zeolite with 5.5 A pore openings enhances adsorption for small gas molecules, facilitating penetration into the zeolite channels. Nitrided ZSM-5 further improves sensing performance for NO2 molecules due to strong interaction with N in the framework. This opens possibilities for selective adsorption of target gas molecules in zeolite-modified organic gas sensors.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Composites
Yanhong Xu, Yaping Ding, Lihong Zhang, Xinxin Zhang
Summary: CuO-NiO nanocomposites were prepared by calcining fiber mats at 450 degrees C through electrospinning technique. The composites showed great performance as a glucose sensor on a glassy carbon electrode, with fast response, low detection limit, wide linear range, high sensitivity, and good stability.
COMPOSITES COMMUNICATIONS
(2021)
Article
Chemistry, Analytical
Wei Yang, Chenyuan Weng, Xiaoyun Li, Hongliang He, Jianwen Fei, Wei Xu, Xiaoqiang Yan, Wanying Zhu, Hongsong Zhang, Xuemin Zhou
Summary: Artificial mimic enzyme has become a powerful substitute for natural enzyme, with nano-enzymes biosensors being the focus of current research. A novel magnetic ternary nanocomposite, hemin-Fe3O4@polypyrrole, exhibited stronger peroxidase activity than Fe3O4 and h-ppy nanoparticles, making it a promising candidate for biosensor construction.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Biophysics
Xuyang Zhao, Zhihe Guo, Yi Zhou, Junhong Guo, Zhiran Liu, Man Luo, Yuxiang Li, Qi Wang, Meng Zhang, Xi Yang, You Wang, Yun-Lu Sun, Xiang Wu
Summary: In this study, an optical sensor prototype was developed with a microbubble optofluidic channel integrated inside a Fabry-Perot cavity to achieve modification-free biosensing with high sensitivity and specificity. The sensor demonstrated high quality factor, small mode volume, and high light energy density, while maintaining ultrahigh refractive index sensitivity and resolution. It also allowed specific detection of low concentrations of biomolecules without probe pre-modification, making it suitable for online, integrated, and dynamic biomolecular analysis.
BIOSENSORS & BIOELECTRONICS
(2023)
