Article
Chemistry, Inorganic & Nuclear
Yunan Wang, Shendan Zhang, Chaozhu Huang, Fengdong Qu, Dong Yao, Haichuan Guo, Haohao Xu, Chunjie Jiang, Minghui Yang
Summary: In this study, ordered mesoporous materials WO3 and Au-loaded WO3 (Au-WO3) sensors were prepared using KIT-6 as a template. The Au-WO3 sensor showed better selectivity and higher response to TMA gas compared to the pristine WO3 sensor. With a working temperature of 268 degrees C, the Au-WO3 sensor exhibited a response (Ra/Rg) of 41.56 to 100 ppm TMA with a response time of 1 second, as well as excellent response/recovery capabilities and stability. The high sensing performances are mainly attributed to the electronic and chemical sensitization of the noble metal Au and the presence of a high specific surface area supported by the mesoporous structure, making Au-doped mesoporous WO3 a promising material for high performance TMA gas sensors.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Wenjian Zhang, Xukun Wang, Junnian Wu, Xinge Wang, Xueliang Lv, Guo Liu, Bingsheng Li, Jinyuan Zhou, Erqing Xie, Zhenxing Zhang
Summary: In this study, Nb-doped CeO2 nanofibers were prepared to create humidity-independent acetone gas sensors. The doped sensor exhibited excellent response, selectivity, repeatability, and long-term stability due to the presence of rich oxygen vacancies and enhanced acetone sensing performance. The appropriate Nb dopant was able to modulate the replacement ratio of H+ to the hydroxyl group, making it a promising sensing material for acetone in humid conditions.
APPLIED SURFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
S. Blessi, A. Manikandan, S. Anand, M. Maria Lumina Sonia, V. Maria Vinosel, Abeer Mohamed Alosaimi, Anish Khan, Mahmoud Ali Hussein, Abdullah M. Asiri
Summary: This study demonstrates the capability of Al3+ ions as a dopant in mesoporous SnO2 nanopowders for humidity sensor and electrochemical applications. By controlling the concentration of Al3+ ions, the material shows excellent structural, morphological, optical, and electrochemical properties, with quick response and recovery time in humidity sensing applications.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Zeyuan Gao, Ruonan Tian, Chaowei Jia, Ruifeng Lang, Gang Chen, Hongtao Guan, Chengjun Dong
Summary: In this study, 1D mesoporous NiFe2O4 nanorods were successfully synthesized via hydrothermal method, and Pt nanoparticles were functionalized to enhance the sensitivity and reliability of acetone detection.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Chemistry, Physical
Jingxuan Wu, Song Zou, Bo Wang, Changhao Feng, Tatsuo Yoshinobu
Summary: In this study, acetone sensitive W-doped ZnFe2O4 composite nanofibers were successfully prepared through a simple single-spinneret electrospinning method and calcination treatment. The properties and performance of the nanofibers were thoroughly analyzed, demonstrating enhanced sensitivity and selectivity to acetone vapor. The sensors based on 6 mol% W-doped ZnFe2O4 composite nanofibers showed a high response to low concentrations of acetone vapor.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Zilong Guo, Yulin Sha, Min Wang, Minjie Li, Yan Wan, Xiaonan Ma, Wensheng Yang
Summary: In this study, a robust humidity sensing strategy was demonstrated by loading photoacid HPTS into nanopores of hollow mesoporous organosilica capsules. The humidity sensors fabricated using this method exhibited rapid response and recovery, qualified reversibility, and selectivity, enabling continuous monitoring of human respiration. The sensitivity and response range of the sensor can be effectively tuned by fabricating capsules with properly sized nanopores, providing an opportunity for designing unique nanostructures for specific applications.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Zhi-Da Hu, Xi-Yu Sun, Hang-Fei Li, Ya-Ru Kang, Xian-Qiang Song, Peng Wang, Qiao-Tong Luan, Xue-Dong Wang, Zong-Tao Chi, Wan-Feng Xie
Summary: Metal sulfide nanomaterials, especially cobalt monosulfide nanofibers, were successfully synthesized with uniform shape and good crystallinity, exhibiting excellent ethanol sensing properties, short response and recovery times, and good stability for potential sensor applications.
Article
Multidisciplinary Sciences
Ahmed Abutaleb, Shahir Hussain, Mohd Imran
Summary: This paper used the electrospinning technique to fabricate PVDF/MWCNTs composite nanofibers, showing different properties at different MWCNTs concentrations, especially a high capacitive response and sensitivity to humidity at 2.5 wt% MWCNTs addition.
JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
Song Zou, Jingxuan Wu, Bo Wang, Qingsong Luo, Wenjun Wang, Zhenxing Wang, Yu Wan, Changhao Feng
Summary: Efficient and reliable monitoring of trimethylamine (TMA) is crucial for environmental protection and human healthcare. Molybdenum trioxide (MoO3) nanofibers have been identified as a promising sensing material with a low-detection limit for TMA. Controllable morphology of MoO3 nanofibers was achieved through adjusting electrospinning and calcination conditions. MoO3 with a second-step calcination time of 90 s exhibited excellent sensing properties towards TMA.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Tingke Rao, Jialin Li, Wen Cai, Min Wu, Jie Jiang, Peng Yang, Yuanliang Zhou, Wugang Liao
Summary: The use of sol-gel method to fabricate ion-sensitive field-effect transistors with high sensitivity and metal oxide-based devices with single and binary contents shows promising results in detecting pH changes. These devices demonstrate efficiency and stability optimization, showcasing the feasibility of the novel sol-gel fabrication method in achieving efficient and reliable FET sensors.
Article
Optics
Mohd Hafiz Jali, Hazli Rafis Abdul Rahim, Md Ashadi Md Johari, Aminah Ahmad, Haziezol Helmi Mohd Yusof, Siti Halma Johari, Mohamad Faizal Baharom, Siddharth Thokchom, Kaharudin Dimyati, Sulaiman Wadi Harun
Summary: A humidity sensor is proposed by integrating a microsphere resonator onto a glass surface coated with ZnO nanorods, showing high sensitivity and resolution. The sensor enhances the interaction with the surrounding medium by utilizing the high Q factor of the microsphere and the changeable refractive index of the ZnO nanorods. It effectively solves the issues related to complicated handling of microfibers during the coating process.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Polymer Science
Feng Wang, Hao Dou, Cheng You, Jin Yang, Wei Fan
Summary: By utilizing hierarchical structures and processing technology, a PAN-PVDF/ZnO PENG nanogenerator was designed, which improved both mechanical and piezoelectric properties significantly and successfully powered commercial LEDs.
Article
Chemistry, Analytical
Milena P. Dojcinovic, Zorka Z. Vasiljevic, Jugoslav B. Krstic, Jelena D. Vujancevic, Smilja Markovic, Nenad B. Tadic, Maria Vesna Nikolic
Summary: Nickel manganite nanocrystalline fibers were prepared by electrospinning and showed good performance in terms of temperature sensitivity and multifunctional sensing, indicating their potential for combined humidity and temperature sensing applications.
Article
Engineering, Chemical
Simon Bilodeau, Justyna Florek, Freddy Kleitz
Summary: This study comprehensively investigates the physicochemical characteristics of high surface area functional organic polymers and copolymers obtained through nanocasting, including successful modifications to introduce functional groups. The advantages of the hard templating method for structuring organic materials are highlighted, but limitations of this approach are also discussed.
CHEMIE INGENIEUR TECHNIK
(2021)
Article
Engineering, Electrical & Electronic
Hakan Colak, Ercan Karakose
Summary: The study demonstrated that Gd(III)-doped ZnO nanorods show increased response to CO2 gas with higher doping concentration and temperature, with the optimum operating temperature determined as 200 degrees C. The 3 mol % doped sample exhibited a high sensitivity to CO2 gas, with a response rate of about 85% at this temperature, and maintained response stability against CO2, acetone, and ethanol gases for 30 days.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
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)