Article
Chemistry, Multidisciplinary
Xingtai Chen, Tao Liu, Zhaoru Li, Xi-Tao Yin
Summary: Gas sensors, especially metal oxide semiconductors, have been widely used in various fields, and modification methods such as special structures, doping, and precious metal loading can improve their gas-sensitive performance. This review summarizes the progress in the modification of metal oxides, including their response, selectivity, and operating temperature, and focuses on the gas-sensitive mechanisms. The bottlenecks and future development prospects of current metal oxide semiconductor n-Butanol gas sensors are also discussed.
MATERIALS TODAY CHEMISTRY
(2023)
Review
Chemistry, Inorganic & Nuclear
Chengming Lou, Guanglu Lei, Xianghong Liu, Jiayue Xie, Zishuo Li, Wei Zheng, Neeraj Goel, Mahesh Kumar, Jun Zhang
Summary: Formaldehyde sensors are crucial for indoor air quality monitoring and gas leakage detection in industrial areas. The development of high-performance formaldehyde sensors has been greatly facilitated by the research progress in metal oxide semiconductors (MOS) nanomaterials. This review summarizes the recent advances in formaldehyde sensors utilizing MOS nanostructures, emphasizing the structure-property relationships of various MOS types and discussing optimization strategies for sensor performances. The perspectives and challenges in the future development of formaldehyde sensors are also discussed.
COORDINATION CHEMISTRY REVIEWS
(2022)
Review
Chemistry, Inorganic & Nuclear
Chao Zhang, Kaichun Xu, Kewei Liu, Jinyong Xu, Zichen Zheng
Summary: With the development of economy and society, the detection of carbon dioxide (CO2) has attracted more attention. Metal oxide semiconductor materials have been widely used in CO2 detection due to their various crystal structures, micro-nano morphologies, simple preparation process, and low cost. This article reviews the sensing mechanism and sensitization methods of CO2 gas sensing materials based on metal oxides, and introduces the CO2 sensing properties of chemical resistive sensors based on various metal oxide semiconductors, such as SnO2, ZnO, TiO2, and BaTiO3.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Analytical
Zhicheng Cai, Jiho Park, Sunghoon Park
Summary: Pd and Fe2O3 nanoparticles-embedded porous NiO nanofibers with high specific surface area were prepared using electrospinning. Adjusting the amount of Fe2O3 nanoparticles in the precursor solution regulated the morphological evolution and crystallization of oxide heterostructures, leading to enhanced gas sensing performance for hydrogen gas. The sensors exhibited excellent response towards 1000 ppm H-2 gas, with a response time of 11 seconds and good selectivity and stability.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Materials Science, Multidisciplinary
Zhicheng Cai, Jiho Park, Sunghoon Park
Summary: In this study, porous In2O3-ZnO nanofibers were prepared via electrospinning method to fabricate a toluene gas sensor. The sensor could operate at room temperature with the illumination of ultraviolet light (365 nm). The structural properties of the sensor were characterized, and it was found that the nanofibers consisted of subnanograins with numerous pores, resulting in a large surface area for increased gas-sensor contact. The sensor showed excellent toluene-sensing properties with high selectivity.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Review
Chemistry, Multidisciplinary
Xuanyu Yang, Yu Deng, Haitao Yang, Yaozu Liao, Xiaowei Cheng, Yidong Zou, Limin Wu, Yonghui Deng
Summary: With the emergence of the Internet of Things, chemiresistive gas sensors have been extensively applied in various fields such as industrial production, food safety, medical diagnosis, and environment detection. The performance of gas sensors has been improved through the tailoring of sensitive materials' structure, functions, defects, and electrical conductivity. Among these sensitive materials, mesoporous semiconductor metal oxides, with tunable pore size, high specific surface area, abundant metal-oxygen bonds, and rapid mass transfer behavior, have been considered as the most promising. This article provides an overview of the synthesis strategies for mesoporous metal oxides, summarizes the classical functionalization techniques of sensitive materials, discusses the structure-function relationship at the molecular-atomic level, and proposes challenges and future perspectives for the development of intelligent gas sensors.
Article
Engineering, Environmental
Qiong Chen, Yongheng Zhang, Shuyi Ma, Yuhua Wang, Peiyu Wang, Guoheng Zhang, Duojie Gengzang, Haiyan Jiao, Mingxiao Wang, Wanjun Chen
Summary: The study focused on synthesizing multishelled NiO/NiCo2O4 hollow microspheres using bimetal-organic frameworks of Ni-Co-BTC as a template, which exhibited high sensitivity and rapid response/recovery time to acetone gas at low working temperature. The enhanced performance was attributed to the efficient diffusion path, nanoscale p-p heterojunctions, and the combination of chemical and electrical catalytic effects.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Analytical
Hai Liu, Tingting Zhao, Lingwei Kong, Xun Cao, Wenhuan Zhu, Yizhong Huang, Maolin Bo
Summary: This study comparatively examines twinned CuCrO2 nanoparticles in gaseous chemiresistive property, exploring the contribution of twin boundaries to the charge transfer and activity of Cu atoms, paving a new way for insightful acquisition of nanotwins in gas detection applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
Zhicheng Cai, Sunghoon Park
Summary: In this study, Co3O4-decorated porous TiO2 nanofibers were synthesized and characterized. The nanofiber exhibited a porous body structure and large surface area, which facilitated the adsorption of acetone gas. The nanofiber-based gas sensor showed good response and recovery times towards acetone gas, and could be a promising material for the fabrication of high selectivity acetone gas sensors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Zhicheng Cai, Jiho Park, Sunghoon Park
Summary: A series of porous Au nanoparticles (NPs) decorated with In2O3 nanoparticles (NPs) was embedded in ZnO nanofibers (NFs) using electrospinning and calcination methods. The gas-sensing properties of the resulting sensors were evaluated and it was found that the addition of In2O3 improved the response properties. The sensor with 0.03 g In(NO3)3 (S2) showed excellent stability, selectivity, and a high response to NO2 gas under UV irradiation at room temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Nanoscience & Nanotechnology
Lang-Xi Ou, Meng-Yang Liu, Li-Yuan Zhu, David Wei Zhang, Hong-Liang Lu
Summary: This article presents the recent research progress of metal oxide semiconductor-based room-temperature gas sensors and discusses the influence of various modified materials on the performance of gas sensors. The effect of light illumination on gas sensing performance and the applications and future perspectives of room-temperature gas sensors are also discussed.
NANO-MICRO LETTERS
(2022)
Article
Agriculture, Multidisciplinary
Thara Seesaard, Neeraj Goel, Mahesh Kumar, Chatchawal Wongchoosuk
Summary: This review summarizes the utilization of gas sensors and E-nose technologies in agricultural best management practices, including cultivation preparation, crop production, harvesting, and storage. These technologies show great promise but also have limitations.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2022)
Article
Chemistry, Analytical
Yuefeng Gu, Danfeng Chen, Tiancheng Wu, Junyang Hao, Zhigang Zhang, Zhicheng Zhu, Fangfang Xue, Shan He, Qiuhong Li
Summary: Gas sensors are essential in connecting humans and health by monitoring the gas quality in living spaces. PtNi3-WO3 gas sensors demonstrated superior selectivity, sensitivity, and stability to formic acid, making them suitable for indoor air gas monitoring.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Review
Chemistry, Analytical
Ali Mirzaei, Hamid Reza Ansari, Mehrdad Shahbaz, Jin-Young Kim, Hyoun Woo Kim, Sang Sub Kim
Summary: This review focuses on the development and application prospects of resistive gas sensors based on metal oxide semiconductors (MOSs), and introduces the application of different morphologies of metal oxides in sensor fabrication.
Article
Instruments & Instrumentation
Xin Ding, Yunbo Shi, Hui Sun, Xibo Ding
Summary: This study proposes a dual-frequency phase-difference technique to accurately measure multi-period phase difference, aimed at detecting high-concentration hydrogen. Simulation analysis and experiments demonstrate that this technique can achieve a maximum hydrogen concentration of 50% with an uncertainty of less than 5%, meeting commercial requirements.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2021)
Article
Chemistry, Multidisciplinary
Tetsuya Kida, Keisuke Horita, Satoshi Suehiro, Masayosh Yuasa, Armando T. Quitain, Tooru Tanaka, Katsuhiko Fujita, Yoichi Ishiwata, Kengo Shimanoe
Article
Chemistry, Physical
Kota Kumamoto, Kenta Tsuchibashi, Azzah Dyah Pramata, Masayoshi Yuasa, Kengo Shimanoe, Tetsuya Kida
JOURNAL OF PHYSICAL CHEMISTRY C
(2017)
Article
Chemistry, Analytical
Hongyu Gao, Dongdong Wei, Pengfei Lin, Chang Liu, Peng Sun, Kengo Shimanoe, Noboru Yamazoe, Geyu Lu
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Chemistry, Analytical
Bo Zhang, Jie Liu, Xiaobiao Cui, Yinglin Wang, Yuan Gao, Peng Sun, Fengmin Liu, Kengo Shimanoe, Noboru Yamazoe, Geyu Lu
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Chemistry, Analytical
Tianshuang Wang, Xueying Kou, Liupeng Zhao, Peng Sun, Chang Liu, Yue Wang, Kengo Shimanoe, Noboru Yarnazoe, Geyu Lu
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Chemistry, Multidisciplinary
Hongcheng Ruan, Maiko Nishibori, Tomoki Uchiyama, Kakeru Ninomiya, Kazutaka Kamitani, Kazuo Kato, Yuko Konishi, Alexander Haensch, Nicolae Barsan, Udo Weimar, Kengo Shimanoe
Article
Materials Science, Multidisciplinary
Shunsuke Gunji, Masaya Jukei, Yasuhiko Shimotsuma, Kiyotaka Miura, Koichi Suematsu, Ken Watanabe, Kengo Shimanoe
JOURNAL OF MATERIALS CHEMISTRY C
(2017)
Article
Chemistry, Analytical
Koichi Suematsu, Kosuke Watanabe, Akihiro Tou, Yongjiao Sun, Kengo Shimanoe
ANALYTICAL CHEMISTRY
(2018)
Article
Materials Science, Multidisciplinary
Anna Ilnicka, Jerzy P. Lukaszewicz, Kengo Shimanoe, Masayoshi Yuasa
JOURNAL OF MATERIALS RESEARCH
(2018)
Article
Chemistry, Physical
Noriko Saito, Ken Watanabe, Hajime Haneda, Isao Sakaguchi, Kengo Shimanoe
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Article
Materials Science, Multidisciplinary
Theerapong Santhaveesuk, Kengo Shimanoe, Koichi Suematsu, Supab Choopun
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2018)
Article
Chemistry, Analytical
Koichi Suematsu, Wataru Harano, Tokiharu Oyama, Yuka Shin, Ken Watanabe, Kengo Shimanoe
ANALYTICAL CHEMISTRY
(2018)
Article
Materials Science, Ceramics
Kenji Obata, Akane Doi, Maiko Nishibori, Kengo Shimanoe, Takuya Suzuki, Shigenori Matsushima
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN
(2018)
Article
Chemistry, Multidisciplinary
Hongcheng Ruan, Maiko Nishibori, Tomoki Uchiyama, Kakeru Ninomiya, Kazutaka Kamitani, Yuko Konishi, Kengo Shimanoe
Article
Nanoscience & Nanotechnology
Mingjun Dai, Liupeng Zhao, Hongyu Gao, Peng Sun, Fengmin Liu, Sean Zhang, Kengo Shimanoe, Noboru Yamazoe, Geyu Lu
ACS APPLIED MATERIALS & INTERFACES
(2017)
Article
Chemistry, Analytical
Mengmeng Guo, Na Luo, Yueling Bai, Zhenggang Xue, Qingmin Hu, Jiaqiang Xu
Summary: A porous heterostructure WO3-C/In2O3 was designed and prepared for a miniature H2 sensor, which showed higher response value, lower operating temperature, fast response-recovery speed, and low limit of detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Feng Hu, Hui Hu, Yuting Li, Xiaohui Wang, Xiaowen Shi
Summary: Arsenic contamination in water bodies is a significant health risk. This study developed a chitosan-catechol modified electrode for rapid and accurate detection of trace amounts of arsenic. The modified electrode demonstrated good detection capability and resistance to ionic interference, making it suitable for in situ detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yantao Zhang, Qian Liu, Tao Tian, Chunhua Xu, Pengli Yang, Lianju Ma, Yi Hou, Hui Zhou, Yongjun Gan
Summary: In this study, a lysosome-targeting buffering fluorogenic probe (Lyso-BFP) was designed and synthesized, demonstrating excellent photostability, pH specificity, and responsiveness to lysosomal acidification in living cells. The performance of Lyso-BFP in pH sensing was attributed to the inhibition of the photo-induced electron transfer process. Lyso-BFP allowed for wash-free imaging and long-term real-time monitoring of lysosome pH changes based on its off-on fluorescence behavior and buffer strategy.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Wei Cai, Wenbo Sun, Jiayue Wang, Xiaokui Huo, Xudong Cao, Xiangge Tian, Xiaochi Ma, Lei Feng
Summary: In this study, a near-infrared fluorescent probe HCBG was developed for imaging of alpha-GLC. HCBG exhibited excellent selectivity and sensitivity towards alpha-GLC in complex bio-samples, and showed good cell permeability for in situ real-time imaging. Through the high-throughput screening system established by HCBG, a natural alpha-GLC inhibitor was successfully isolated and identified. This study provides a novel fluorescence visualization tool for discovering and exploring the biological functions of diabetes-related gut microbiota, and a high-throughput screening approach for alpha-GLC inhibitor.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Trey W. Pittman, Xi Zhang, Chamindie Punyadeera, Charles S. Henry
Summary: Heart failure is a growing epidemic and a significant clinical and public health problem. Researchers have developed a portable and affordable diagnostic device for heart failure that can be used at the point-of-care, providing a valid alternative to current diagnostics approaches.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Anders O. Tjell, Barbara Jud, Roland Schaller-Ammann, Torsten Mayr
Summary: An optical hydrogen peroxide sensor based on catalytic degradation and the detection of produced oxygen is presented. The sensor offers higher resolution and better sensitivity at lower H2O2 concentrations. By removing O2 from the sample solution, a more sensitive O2 sensor can be used for measurement. The sensor has been successfully applied in a flow-through cell to measure H2O2 concentration in different flow rates.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Seong Jae Kim, Ji-hun Jeong, Gaabhin Ryu, Yoon Sick Eom, Sanha Kim
Summary: Surface-enhanced Raman spectroscopy (SERS) is a high-sensitivity, label-free detection method with various analytical applications. Researchers have developed a hydrophobic SERS substrate based on engineered carbon nanotube arrays (CNT-SERS) and studied the role of structural design at both micro and nanoscales. The substrate demonstrated controlled self-enrichment capability and enhanced sensitivity, with a significant increase in the SERS signal. The study also proposed a theoretical model and a concentration strategy inspired by plants for analyte deposition on microarrays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Dan Zhao, Renjun Jiang, Xiaoqiang Liu, Subbiah Alwarappan
Summary: In this study, a novel ternary composite material was constructed by assembling cerium vanadate nanorods on reduced graphene oxide-microcrystalline cellulose nanosheets, and it was used for real-time monitoring of the concentration of superoxide anions in vivo. The ternary composite showed excellent conductivity, large surface area, and abundant active sites, leading to a wider linear range, high sensitivity, low detection limit, and fast response time for superoxide anion detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Tengfei Wang, Liwen Wang, Guang Wu, Dating Tian
Summary: In this study, a covalent organic framework material TaTp-COF with porous and uniform spheres was successfully prepared via hydrothermal reaction, and it was found to significantly enhance the aggregation-induced emission (AIE) of berberine. The unique emission properties of berberine on TaTp-COF were studied and utilized for the sensitive detection of berberine.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Lin Li, Yilei Ding, Lei Xu, Shuoran Chen, Guoliang Dai, Pengju Han, Lixin Lu, Changqing Ye, Yanlin Song
Summary: In this study, a novel TTI based on a ratiometric fluorescent nanosensor is designed, which has the advantages of high accuracy and low cost. Experimental and theoretical investigations confirm its pH responsiveness and demonstrate its good sensitivity and reliability. By monitoring the total volatile basic nitrogen, this TTI can accurately predict food spoilage and can be adaptively modified for different types of food. The TTI based on this nanosensor enables visual monitoring of food quality.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Fangju Chen, Xueting Wang, Wei Chen, Chenwen Shao, Yong Qian
Summary: Lung cancer is the second most common malignant tumor worldwide. Drug resistance in lung cancer leads to treatment failure and recurrence in majority of patients. This study developed a fluorescent prodrug that can be activated in cancer cells to release drugs, and its signal can be tracked by imaging. It shows a unique autophagy-driven ferroptosis effect, indicating its potential for targeting drug-resistant cancer cells.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Weichao Li, Qiming Yuan, Zhangcheng Xia, Xiaoxue Ma, Lifang He, Ling Jin, Xiangfeng Chu, Kui Zhang
Summary: This study developed a high-performance gas sensor for formaldehyde detection by modifying ZnSnO3 with ZnO QDs and SnO2 QDs. The modified sensor showed improved sensing response and lower working temperature. The presence of ZnO QDs formed rich heterojunctions, increased surface area, and provided oxygen deficiency for formaldehyde sensing reaction, thus enhancing the sensor performance. This research provides an alternative method to enhance the sensing properties of MOS by QDs modification.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Joung-Il Moon, Eun Jung Choi, Younju Joung, Jin-Woo Oh, Sang-Woo Joo, Jaebum Choo
Summary: A novel nanoplasmonic substrate was developed for biomedical applications, which showed strong hot spots for detecting biomarkers at low concentrations. The substrate, called AuNPs@M13, was made by immobilizing 60 nm gold nanoparticles onto the surface of an M13 bacteriophage scaffold. It demonstrated higher sensitivity and lower limit of detection compared to commercially available assays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Ning Li, Ya Zhang, Ying Xu, Xiaofang Liu, Jian Chen, Mei Yang, Changjun Hou, Danqun Huo
Summary: The molecular subtype of breast cancer guides treatment and drug selection. Invasive tests can promote cancer cell metastasis, so the development of high-performance, low-cost diagnostic tools for cancer prognosis is crucial. Liquid biopsy techniques enable noninvasive, real-time, dynamic, multicomponent, quantitative, and long-term observations at the cellular, genetic, and molecular levels. A Cu-Zr metal-organic framework (MOF) nanoenzyme with monatomic Cu attachment has been synthesized and proven to have high catalytic performance. The sensor constructed using this nanoenzyme shows potential for accurate classification of breast cancer serum samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Jeongmin Kim, Hyemin Kim, Seunghyun Park, Hyeonaug Hong, Yong Jae Kim, Jiyong Lee, Jaeho Kim, Seung-Woo Cho, Wonhyoung Ryu
Summary: This study presents a method to fabricate independently functioning microneedle (MN) electrodes with narrow intervals for high precision electrochemical sensing. The optimized mixture of photocurable polymer and single-wall carbon nanotubes was used to mold single composite MNs, which were then attached to pre-patterned electrodes. Plasma etching and electropolymerization were performed to enhance the electrochemical activity, and Prussian blue and glucose oxidase were electrodeposited on the MNs for glucose detection. The MN electrodes showed good sensitivity and linearity, and the feasibility of glucose detection was demonstrated in an in vivo mouse study.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
