Article
Materials Science, Ceramics
Baoqing Han, Hairong Wang, Wanying Yang, Jiuhong Wang, Xueyong Wei
Summary: The research indicates that 1 mol% Pt-decorated In2O3 shows significantly enhanced response to isoprene gas, with good selectivity, repeatability, and long-term stability, making it suitable for large-scale rapid breath detection of chronic liver disease.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Veronica Montes-Garcia, Paolo Samori
Summary: Precise monitoring of humidity is crucial for living comfort and various industrial applications. Supramolecular nanostructures have emerged as ideal materials for highly efficient humidity sensors, due to their fast response, high reversibility, and quick recovery time. This article showcases recent strategies and discusses key performance indicators, as well as presents remarkable examples and future directions for the development of advanced humidity sensors.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Yuan Lin, Bingchang Zhang, Yihao Shi, Yongchao Zheng, Jia Yu, Jiansheng Jie, Xiaohong Zhang
Summary: Silicon-based field effect transistor (FET) sensors with high sensitivity have great potential for detecting chemical/biological species. This study investigates the impact of strain on the field-effect sensing property of silicon wires using humidity sensing as an example. The results show that the humidity sensitivity of FET sensors based on silicon wires increases with tensile strain but decreases with compressive strain. The findings highlight the potential of strain engineering in modulating the field-effect sensing property of Si wires for highly sensitive FET sensors.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Zicheng Zheng, Nan Jiang, Rong Liang, Hanwen Chi, Jingmin Wu, Jie Jiang, Zhizhen Ye, Liping Zhu
Summary: Pt-decorated In2O3 hollow microspheres were prepared using a template and reflux method, with the Pt decoration significantly enhancing the response of the In2O3-based sensor towards acetone. The addition of Pt led to an increase in specific surface area and the availability of active sites for the target gas, resulting in alterations to the energy band structure. The proposed sensor has high sensitivity and can detect low concentrations of acetone, making it suitable for applications such as monitoring dietary intake, managing diabetes, and inspecting industrial processes.
Article
Chemistry, Multidisciplinary
Mallaurie Foucaud, Sanja Renka, Teodoro Klaser, Jasminka Popovic, Zeljko Skoko, Petr Mosner, Ladislav Koudelka, Ana Santic
Summary: Glass-ceramics containing crystalline NaMoO2PO4 were prepared through heat-treatments at different temperatures and times. These materials exhibit high proton conductivity and remarkable humidity-sensing properties in a humid environment, making them potential candidates for applications.
Article
Chemistry, Multidisciplinary
Xiaoqi Xuan, Li Li, Tiantian Li, Jingsong Wang, Yi Yu, Chunchang Wang
Summary: The strategy of tuning the Bi content in the material was proposed to improve the sensing performance of humidity sensors. Experimental results showed that a proper reduction in Bi content can greatly enhance the sensing performance, improving the linear humidity response, hysteresis value, and response/recovery time of the sensor significantly.
Article
Chemistry, Physical
Xiaohui Xu, Shuyi Ma, Xiaoli Xu, Shitu Pei, Ting Han, Wangwang Liu
Summary: Gas sensors have promising prospects in gas monitoring, and heterostructures like SnS2/ZnS can significantly enhance gas sensitivity. The hierarchical structure of SnS2/ZnS flowerlike microspheres demonstrates improved gas-sensing properties, attributed to the heterojunction and high specific surface area.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Yongguang Wang, Longchao Yao, Linjie Xu, Weihong Wu, Wenhao Lin, Chenghang Zheng, Yuanqun Feng, Xiang Gao
Summary: Hierarchical WO3 hollow microspheres were successfully synthesized and applied in gas sensors, showing high sensitivity, selectivity, repeatability, and response/recovery characteristics towards NO gas, mainly due to their unique structure with high specific surface area and effective gas diffusion ability.
Article
Multidisciplinary Sciences
Muhammad Asif Ali Rehmani, Kartikay Lal, Ayesha Shaukat, Khalid Mahmood Arif
Summary: This work presents a simple method for fabricating capacitive transduction electrodes for sensing applications. The electrodes were produced on a PMMA substrate using a laser engraving machine and characterized by optical microscopy. A functional polymer porous cellulose decorated sensing layer was applied to the geometries for humidity sensing. The resulting sensors exhibited good sensing response with sensitivities ranging from 0.13 to 2.37 pF/%RH. Moreover, by changing the electrode geometry, the sensitivity of the sensors can be increased up to 5 times. The simplicity of the fabrication process and the higher sensitivity offered by the electrode designs make them suitable for various applications, such as air quality sensors and touch or tactile sensors.
SCIENTIFIC REPORTS
(2022)
Review
Chemistry, Multidisciplinary
Yangyang Pei, Xiaoli Zhang, Zengyu Hui, Jinyuan Zhou, Xiao Huang, Gengzhi Sun, Wei Huang
Summary: With the rapid development of electronic and information technologies, sensors are becoming increasingly important in daily life, with MXene emerging as a promising 2D material with great potential in the field of sensors.
Article
Nanoscience & Nanotechnology
Nutpaphat Jarulertwathana, Syazwani Mohd-Noor, Jerome K. Hyun
Summary: The study demonstrated the use of titania microspheres as optical humidity sensors, achieving high-performance, ultrafast, and stable touchless control, with sensor performance influenced by the microstructural characteristics of the microspheres. By optimizing the microstructural properties of the microspheres, high-sensitivity response to humidity was achieved, including wavelength shifts above 100 nm, near full-scale relative humidity (RH) responsivity, ultra-short response times below 30 ms, and prolonged lifetimes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Mohamed Morsy, Amir Elzwawy, Ahmed I. Abdel-Salam, M. M. Mokhtar, A. B. El Basaty
Summary: By synthesizing PANI-TNT-rGO nanocomposite and applying it as a humidity sensor, there is potential for significant applications in the field of humidity sensing. Experimental results show that the sensor has fast response time and high sensitivity.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Ashish Pandharipande, Martijn Lankhorst, Emmanuel Frimout
Summary: This article presents a multi-modal sensor system for delivering temperature and relative humidity data around the user workspace. Fusion methods are proposed to process sensor measurements and estimate the temperature and relative humidity reliably.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Manish Kumar Tiwari, Subhash Chand Yadav, Abhishek Srivastava, Archana Kanwade, Jena Akash Kumar Satrughna, Sawanta S. Mali, Jyoti V. Patil, Chang Kook Hong, Parasharam M. Shirage
Summary: This work reports the synthesis of Mn-doped ZnSnO3 microspheres and their improved CO gas sensing properties.
Article
Materials Science, Multidisciplinary
Yongjie Zhang, Jianliang Cao, Yan Wang
Summary: This research reported the synthesis of Ni-doped In2O3 microspheres through solvothermal strategy and investigated their composition, structure, and CH4 sensing properties. The results showed that Ni-doped In2O3 microspheres had enhanced response to CH4 at low temperature, good selectivity, and stability.
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)