Article
Chemistry, Analytical
Chunyan Li, Pil Gyu Choi, Kyusung Kim, Yoshitake Masuda
Summary: This paper discusses the direct fabrication of ultrathin Ni(OH)2 nanosheets on substrates via a solvothermal process. The thickness and morphology of the nanosheets can be controlled by manipulating the ethanol content in the solvent. The 75% ethanol-based NiO gas sensor demonstrates ultrahigh acetone sensitivity, ultralow detection limit, good stability, and superior acetone selectivity. Low cost NiO nanosheets fabricated via a simple process could be considered as potential candidates for commercial acetone sensing applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
Wenhui Lu, Ming Yuan, Jing Chen, Jiaxin Zhang, Lingshuai Kong, Zhenyu Feng, Xicheng Ma, Jie Su, Jinhua Zhan
Summary: This study engineered surface Lewis acid-base sites on Co3O4 nanosheets to enhance peroxidase-like activity, resulting in higher catalytic efficiency for oxidizing substrates. The synergistic effect of acid and base sites on Co3O4 nanosheets improved interfacial electron transfer, facilitating substrate adsorption and generation of reactive intermediates. The ultrathin porous Co3O4 nanosheets showed superior performance in detecting hydroquinol with a wider linear range, offering a colorimetric detection method based on agarose-based hydrogel membrane.
Article
Nanoscience & Nanotechnology
Mukhesh K. Ganesha, Indrajit Mondal, Ashutosh K. Singh, Giridhar U. Kulkarni
Summary: Electrochromic (EC) devices are not widely commercialized due to their high cost. The best large-area devices in the market do not achieve a distinct dark-colored state and instead appear more like blue tinted glass. This study reports on the development of a high-performing porous WO3 thin film achieved by optimizing the sputtering process, resulting in an affordable dual-function EC energy-storage device. By using a hybrid electrode and multivalent electrolytes, the need for expensive components such as ITO electrodes and Li+ ion-based electrolytes can be eliminated while maintaining device performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Guanglu Lei, Zishuo Li, Guocai Lu, Jinyuan Hu, Haochuan Shang, Xiaolei Zhang, Xianghong Liu, Jun Zhang, Xiangxin Guo
Summary: Metal oxide semiconductor (MOS) thin films, especially tungsten oxide (WO3) thin films, have shown great potential as sensing layers for gas sensor devices. This study focuses on the deposition and annealing process of WO3 thin films on interdigital electrodes, and explores the impact of oxygen vacancies on sensor properties. The results indicate that the WO3 sensor annealed at 500 degrees C exhibits the best performance in detecting triethylamine (TEA), which is attributed to the enhanced adsorption of oxidative oxygen species due to the presence of abundant oxygen vacancies.
JOURNAL OF MATERIOMICS
(2022)
Article
Chemistry, Physical
Keerthika Devi Ramadhass, Muthusankar Ganesan, Tse-Wei Chen, Shen-Ming Chen, Qingli Hao, Wu Lei, Gopu Gopalakrishnan
Summary: Metal oxides decorated carbon nanomaterials, as an electrode material, have been well explored in the electrochemical sensor field. In this study, a low-cost CeW/GO composite was synthesized for precise electrochemical detection of antibiotic drug FUZ. The composite exhibited a porous-coral-like structure and showed a low detection limit, appreciable sensitivity, and wide linear range for FUZ detection.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Q. A. Drmosh, N. A. Al-Muhaish, Yousif Ahmed Al Wajih, Mir Waqas Alam, Z. H. Yamani
Summary: The impact of post-annealing treatment on tungsten oxide films was investigated, revealing that sensors prepared with annealing temperature of 700 degrees Celsius exhibit higher sensitivity and faster response and recovery times towards acetone detection.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Tomasz Kosmala, Luca Bardini, Maria Caporali, Manuel Serrano-Ruiz, Francesco Sedona, Stefano Agnoli, Maurizio Peruzzini, Gaetano Granozzi
Summary: The study demonstrates that when metal atoms react with black phosphorus, a stable phosphide phase is formed, leading to an increase in electrocatalytic activity for the hydrogen evolution reaction. The atomic resolution scanning tunneling microscopy and X-ray photoemission spectroscopy results suggest that this reaction mechanism may be quite general.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Nanoscience & Nanotechnology
Abhishek Kumar, Kaiwen Chen, Thomas Thundat, Mark T. Swihart
Summary: This paper presents a paper-based sensor using ultrathin palladium nanowires for room-temperature hydrogen detection. The polycrystalline PdNWs showed a response of 4.3% and the quasi-single-crystalline PdNWs showed a response of 8% to 1 vol% H2. The sensor demonstrates excellent selectivity, stability, and sensitivity, and has the potential to be a low-cost alternative to current H2-sensing solutions.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Analytical
Qihua Liang, Yunjia Guo, Hui Chen, MeiHong Fan, Ni Bai, Xiaoxin Zou, Guo-Dong Li
Summary: In this study, porous Ga-In bimetallic oxide with atomically thin pore wall was synthesized by electrospinning and calcination, and a sensor based on this material exhibited ultrashort response and recovery time, high sensitivity and selectivity towards hydrogen. The enhanced performance of this material can be attributed to its novel atomically thin wall, optimal Fermi level and abundant chemisorbed oxygen.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Materials Science, Ceramics
Aditya Yadav, Anuj Sharma, Vishal Baloria, Preetam Singh, Govind Gupta
Summary: This study reports the growth of nanostructured tungsten oxide (WO3) thin film on SiO2 substrate under controlled oxidation conditions for NO sensing. The fabricated sensor demonstrates high selectivity, stability, and faster response/recovery time, with an ultra-high response for 1 ppm NO concentration at 250 degrees C. The ultra-high response is attributed to the high specific surface area and effective gas diffusion ability of the sensor.
CERAMICS INTERNATIONAL
(2023)
Review
Electrochemistry
Doli Bonardo, Ni Luh Wulan Septiani, Fauzan Amri, Estananto, Syahrul Humaidi, Suyatman, Brian Yuliarto
Summary: WO3-based gas sensors have shown great potential in sensitivity, stability, and reproducibility, with the addition of various materials expanding the active state area of the surface and polymers altering the sensor's characteristics. This review provides a comprehensive overview of the development and modification of WO3 for toxic gas sensor enhancement, discussing sensing mechanisms, future opportunities, and challenges to inspire further research progress.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Na Li, Tianyue Zhao, Pengfei Bian, Shide Liu, Jinming Ma, Bo Liu, Tifeng Jiao
Summary: In this study, a synthesis strategy for ultrathin film gas sensors based on pH-responsive, self-powered, and visible composite Langmuir-Blodgett (LB) films is proposed. The formation of composite LB films enables acid-alkali gas detection with acid-base response, self-powering, and visual sensing capabilities. The quality and uniformity of the LB films are confirmed through various measurements. This research opens up new possibilities for the application of ultrathin self-powered gas sensors.
Article
Nanoscience & Nanotechnology
Jongmyeong Lee, Chae-Young Park, Chang-In Kong, Jae-Hyeok Lee, Su-Young Moon
Summary: In this study, a water-casting method was proposed to produce high-permselectivity thin-film composite (TFC) membranes for hydrogen purification. The film integrity and thickness were controlled by adjusting the spreadability of the casting solution. Under optimized conditions, the water-cast TFC membrane showed high hydrogen permeance and selectivity, making it suitable for meeting the demand for pure hydrogen.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Yi Li, Wenting Chen, Zhiwei Liu, Dehua Cao, Yu Chen, Kunyapat Thummavichai, Nannan Wang, Yanqiu Zhu
Summary: This study successfully modified a novel cow dung based activated carbon (CDAC) with W18O49 nanowires as a photocatalyst. The CDAC/W18O49 nanowire composite showed significant improvement in the photocatalytic degradation of methylene blue (MB) under full-spectrum light illumination, indicating its potential application in dye wastewater treatment technologies.
Article
Materials Science, Multidisciplinary
Ryan A. Kemnitz, Cayla C. Eckley, Brianna M. Sexton, Alex R. LeSieur
Summary: Additively manufactured tungsten in atmospheres of pure argon and argon-3% hydrogen was compared and analyzed based on microstructure, chemical composition, and three-point bend tests. It was found that the argon-3% hydrogen atmosphere resulted in a refined microstructure and significantly increased flexural strength. The presence of tungsten oxides in the argon-3% hydrogen parts likely contributed to grain refinement through grain boundary pinning, leading to higher strength transgranular fracture.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2023)
Article
Physics, Applied
M. Zhao, M. H. Wong, C. W. Ong
APPLIED PHYSICS LETTERS
(2015)
Article
Physics, Condensed Matter
Jiaoyan Shen, Jingming Zhou, Meng Zhao, Guozhen Liu, Ju Gao, Jinlei Yao
JOURNAL OF PHYSICS-CONDENSED MATTER
(2016)
Article
Physics, Applied
G. Z. Liu, J. Qiu, Y. C. Jiang, R. Zhao, J. L. Yao, M. Zhao, Y. Feng, J. Gao
APPLIED PHYSICS LETTERS
(2016)
Article
Physics, Applied
X. X. Chen, M. Zhao, G. Z. Liu, J. L. Yao, J. Gao
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2016)
Article
Physics, Applied
G. Z. Liu, Y. Y. Yang, J. Qiu, X. X. Chen, Y. C. Jiang, J. L. Yao, M. Zhao, R. Zhao, J. Gao
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2016)
Letter
Physics, Multidisciplinary
XiaoXia Chen, GuoZhen Liu, Xia Zhu, Jie Qiu, JinLei Yao, Meng Zhao, YuCheng Jiang, Run Zhao, Ju Gao
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2016)
Article
Physics, Applied
Zhu Xia, Zhao Meng, Gao Ju, Qi Yaping, Zeng Jiali, Huang Weiyi
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2017)
Article
Physics, Applied
Yaping Qi, Xiangbo Liu, Hao Ni, Ming Zheng, Liping Chen, Lin Wang, Yucheng Jiang, Meng Zhao, Ju Gao
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2017)
Article
Chemistry, Analytical
Meng Zhao, Man Hon Wong, Hau Chung Man, Chung Wo Ong
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Chemistry, Analytical
Man Hon Wong, Ngai Hang Ng, Meng Zhao, Ka Seng Lau, Hau Chung Man, Jeffery T. Cheung, Chung Wo Ong
SENSORS AND ACTUATORS B-CHEMICAL
(2017)
Article
Crystallography
Chang Yan, Meng Zhao, Ju Gao, Jinlei Yao
ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES
(2017)
Article
Chemistry, Analytical
Meng Zhao, Man Hon Wong, Chung Wo Ong, Ngai Hang Ng, Hau Chung Man
SENSORS AND ACTUATORS B-CHEMICAL
(2018)
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)