Article
Engineering, Electrical & Electronic
Zhanibek Bizak, Murilo Calil Faleiros, Mani Teja Vijjapu, Usman Yaqoob, Khaled Nabil Salama
Summary: There is a need for reliable and accurate air quality monitoring systems. In this study, a highly sensitive and selective IGZO thin film transistor was used to design an efficient and wireless NO2 sensing system. The system exhibited excellent sensitivity and detection limit at room temperature, making it a promising candidate for IoT and untethered sensor applications.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Hizb Ullah Khan, Muhammad Tariq, Mutabar Shah, Sajid Ullah, Abdul Razaq Ahsan, Abdur Rahim, Jibran Iqbal, Renu Pasricha, Issam Ismail
Summary: In this research, a highly sensitive and stable capacitive humidity sensor based on PVP/WO3 nanocomposite was successfully developed. The sensor showed a high response of 44.73 nF/%RH, short response time (10 s) and recovery time (15 s), along with low hysteresis and excellent stability and repeatability.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Multidisciplinary
Wei Li, Mahboobeh Shahbazi, Kaijian Xing, Tuquabo Tesfamichael, Nunzio Motta, Dong-Chen Qi
Summary: In this work, 2D MoS2@MoO3 heterostructures were synthesized and their morphological, structural, and compositional properties were studied. The heterostructures showed room-temperature ferromagnetism and exhibited p-type-like response towards NO2, with excellent selectivity and reversibility. This study demonstrates the promising application of 2D molybdenum hybrid compounds in gas sensing with unique electronic and magnetic properties.
Article
Chemistry, Analytical
Jinmei Tian, Bin Jiang, Hong Shao, Yuting Wang, Tianqi Wang, Feng Li, Dan Li, Ying Yang, Xiangting Dong
Summary: In this study, one-dimensional tandem heterojunctions of SnO2 @POMs@WO3 nanofibers were prepared using coaxial electrospinning, and the gas sensing performance was significantly improved compared to SnO2 @WO3 nanofibers. The optimized response to 100 ppm ethanol reached 8.8, providing a new strategy for developing high-performance gas sensors through synthesizing one-dimensional tandem heterojunctions and introducing POMs.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Physical
Mathankumar Ganesan, Venkatesan Jayaraman, Prabakaran Selvaraj, Krishna Mohan Mani, Do-Heyoung Kim
Summary: Gas sensing at low temperatures is a challenging task. Pyrochlore-based oxides, particularly the pyrochlore-Ce2Sn2O7 structure prepared through a hydrothermal method, have shown outstanding selectivity, response time, recovery time, repeatability, and stability for NO2 gas molecules. This excellent gas-sensing performance can be attributed to the high specific surface area, presence of oxygen vacancies, and surface-adsorbed oxygen molecules.
APPLIED SURFACE SCIENCE
(2023)
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
Engineering, Environmental
Deasung Kim, Thanh Thao Tran, Vishwa Bhatt, Ha Trang Nguyen, Joondong Kim, Manjeet Kumar, Ju-Hyung Yun
Summary: The increasing concerns over environmental pollution caused by urbanization and modernization have led to a focus on gas sensors. This study synthesized Zn2SnO4 octahedrons using a hydrothermal method and studied the effect of synthesis conditions on their sensing performance. The Zn2SnO4 sample synthesized in 12 hours showed the best gas sensing characteristics.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Mangesh D. Patekari, Krishna K. Pawar, Gayatri B. Salunkhe, Pavan M. Kodam, Mukesh N. Padvi, P. P. Waifalkar, Kiran K. Sharma, Pramod S. Patil
Summary: A simple and efficient method for synthesizing highly sensitive and selective Maghemite nanoparticles from magnetite was reported in this study. The annealing temperature played a critical role in obtaining the Maghemite phase, and characterization of the samples showed the formation of Maghemite and hematite phases. The cubic Maghemite sensor annealed at 300 degrees C exhibited superior sensitivity and selectivity towards NO2 gas detection at 150 degrees C operating temperature, demonstrating exemplary sensing behavior.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Engineering, Environmental
Jae Hoon Bang, Yong Jung Kwon, Jung-Hoon Lee, Ali Mirzaei, Ha Young Lee, Hyeunseok Choi, Sang Sub Kim, Young Kyu Jeong, Hyoun Woo Kim
Summary: This paper presents a facile method to engineer surface-point defects based on proton-beam irradiation to improve the accuracy of metal-oxide gas sensors under humid conditions. The study shows that this method not only improves the response to NO2 gas, but also has considerable tolerance toward humidity.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Jianhong Zhou, Ke Xue, Yaoda Liu, Tingting Liang, Pengfei Zhang, Xu Zhang, Wentao Zhang, Zhengfei Dai
Summary: In this study, two-dimensional SnS2 nanosheets doped with Mo were synthesized and used for the highly sensitive and selective detection of NO2. The Mo doping significantly enhanced the sensing response and revealed an abnormal p-n sensing transition characteristic.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Analytical
Qianqian Ren, Xinping Zhang, Yingnan Wang, Manzhang Xu, Jingru Wang, Qi Tian, Kai Jia, Xintong Liu, Yongming Sui, Chuang Liu, Jiangni Yun, Junfeng Yan, Wu Zhao, Zhiyong Zhang
Summary: Tin monoxide (SnO) microstructures with novel hollow frame morphologies were successfully synthesized using a solvothermal method. These structures showed excellent gas-sensing performances with low detection limits and short response/recovery time for NO2, demonstrating promising potential for gas sensors applications.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
Yingying Fan, Peiyun Zhang, Rongxia Lu, Yuheng Jiang, Guoliang Pan, Wei Wang, Xianglian Zhu, Shilei Wei, Dongxue Han, Li Niu
Summary: This study presents a tungsten trioxide photocatalyst modified with {001}, {010} and {100} facets, allowing for the intermediate-free oxidation of methane into formaldehyde with 99.4% selectivity. A durable formaldehyde yield of 4.61 mmol g(-1) is achieved after 30 hours of irradiation. Surface defect and reactive lattice oxygen atom are found to be crucial for selectivity and productivity enhancement. This work provides a valid paradigm for efficiently converting methane to formaldehyde.
CATALYSIS COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
H. D. Cho, P. Ilanchezhiyan, G. Mohan Kumar, D. Y. Kim
Summary: Thin films of metal-oxide nanostructures based on tungsten were established on silicon substrates for oxygen evolution reactions. Carbonization of tungsten trioxide thin films at high temperature through methane treatment significantly improved their conductivity and promoted oxygen production kinetics, making them viable electrocatalysts for effective oxygen evolution reactions.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Environmental
Kai Xu, Nam Ha, Yihong Hu, Qijie Ma, Weijian Chen, Xiaoming Wen, Rui Ou, Vien Trinh, Chris F. McConville, Bao Yue Zhang, Guanghui Ren, Jian Zhen Ou
Summary: This study develops a room temperature, all-optical, and high-performance NO2 sensor based on a simple D-shaped optical fiber and ultra-thin two-dimensional tin disulfide. The sensor utilizes visible light to excite the two-dimensional material and detects NO2 by manipulating optical absorption and scattering. This all-optical sensor demonstrates high sensitivity and a low detection limit.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Analytical
Qingting Li, Wen Zeng, Qu Zhou, Zhongchang Wang
Summary: This article reports on ethanol gas sensors using NiO hollow spheres assembled from nanoparticles, nanoneedles, and nanosheets. The sensors showed good response to ethanol and had a larger surface area and stability. The template-free preparation of the sensors also saved time and cost.
Article
Chemistry, Physical
M. A. Hosseini, M. Ranjbar, A. R. Shafieyan
SURFACE REVIEW AND LETTERS
(2020)
Article
Chemistry, Physical
Ameneh Farnood, Mehdi Ranjbar, Hadi Salamati
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Physics, Multidisciplinary
M. A. Hosseini, M. Ranjbar, M. Sajadi
Article
Multidisciplinary Sciences
Tahereh Esmaeilpour, Esmaeil Fereydouni, Farzaneh Dehghani, Istvan Bokkon, Mohammad-Reza Panjehshahin, Noemi Csaszar-Nagy, Mehdi Ranjbar, Vahid Salari
SCIENTIFIC REPORTS
(2020)
Article
Chemistry, Physical
M. Sajadi, M. Ranjbar, R. Rasuli
APPLIED SURFACE SCIENCE
(2020)
Article
Chemistry, Inorganic & Nuclear
Amir Shahin Shamsabadi, Hossein Tavanai, Mehdi Ranjbar
Summary: This study investigated the calcination of gold nanoparticles incorporated polyacrylonitrile nanofibers, leading to the formation of gold spherical and flake cluster assemblies. The results showed that the calcination temperature played a key role in determining the morphology of the gold nanostructures.
JOURNAL OF CLUSTER SCIENCE
(2021)
Article
Energy & Fuels
Mozhgan Kazemzadeh Otoufi, Mehdi Ranjbar, Ahmad Kermanpur, Nima Taghavinia, Mehran Minbashi, Mozhdeh Forouzandeh, Firouzeh Ebadi
Article
Materials Science, Multidisciplinary
Amir Shahin Shamsabadi, Hossein Tavanai, Mehdi Ranjbar, Ameneh Farnood, Mehdi Bazarganipour
MATERIALS TODAY COMMUNICATIONS
(2020)
Article
Polymer Science
Mahsa Ahmadi, Hossein Tavanai, Mehdi Ranjbar, Mehdi Torabi Goodarzi
Summary: Electrospun PAN nanofibrous layers were investigated as substrates for palladium-based hydrogen sensors in this research. The sensors showed sensitivity to hydrogen at concentrations as low as 12 ppm at room temperature. Different mechanisms, such as hydrogen induced lattice expansion and palladium hydride formation, were observed at different hydrogen concentrations, while the response and response time of the sensors were affected by the nanofiber diameter and palladium thickness.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Chemistry, Physical
Z. Masoumi Dehaghi, M. Ranjbar, M. Torabi Goodarzi
Summary: In this study, gasochromic fabrics were used to detect hydrogen gas with the evaluation of their performance using a commercial RGB color sensor module. The results showed that the fabrics exhibited good gas adsorption and turned blue-gray in the presence of hydrogen, with a linear response to hydrogen concentration. The study demonstrated the optimal sensing characteristics of the gasochromic fabrics in terms of reversibility, sensitivity, and reproducibility, which may contribute to their commercial development.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Nasibeh Ekraminejad, Majid Jafari, Taghi Amiri, Elyas Shahsavari, Hadi Salamati, Mandi Ranjbar
Summary: This paper investigates and compares the structural, electrical, and ionic properties of La0.6Ca0.4Ni0.2Fe0.8O3-delta synthesized with microwave-assisted heating and conventional method. The results show that the microwave-assisted sample exhibits higher electrical conductivity and lower activation energy.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Elias Shahsavari, Majid Jafari, Fatemeh Yadollahi Farsani, Nasibeh Ekraminezhad, Mehdi Ranjbar, Hadi Salamati
Summary: Depositing Yttria-stabilized Zirconia (YSZ) on anode substrates using thermally assisted methods can reduce activation energies, increase output power, and decrease porosity of the coated layer.
MONATSHEFTE FUR CHEMIE
(2022)
Article
Multidisciplinary Sciences
Mohammadreza Maleki, Alireza Fadaei Tehrani, Ayda Aray, Mehdi Ranjbar
Summary: Interlocking of intramedullary nails is a challenging procedure in orthopedic trauma surgery. A new method using a safe visible light to guide the drilling process has been proposed, showing promising results in improving procedure time and simplifying the process. Animal and human experiments have confirmed the effectiveness of this technique, indicating its potential for clinical applications.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Analytical
Z. Ahmadzadeh, M. Ranjbar
Summary: In this study, plasmonic MoO3-x colloidal nanosheets with a deep blue color were fabricated using a simple anodic oxidation method and examined for colorimetric sensing of hydrogen peroxide. The concentration of hydrogen peroxide was found to weaken the localized surface plasmon resonance (LSPR) and the blue color of the colloids in a sigmoidal sensing behavior. The impact of anodizing potential and time on sensing performance was investigated, and a low limit of detection (LOD) of 0.2-0.9 mu M was achieved. The study also demonstrated the immobilization of MoO3-x nanosheets on felt fibers for colorimetric assay, enabling naked eye detection of hydrogen peroxide in a concentration range of 800 mu m to 100 mM. Overall, this research provides a facile approach to detect hydrogen peroxide at the human-positive diabetes level and has significant implications for the development of hydrogen peroxide sensors.
ANALYTICA CHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
Ali Moafi, Omid Heidari, Babak Soltannia, Wojtek Wlodarski, Fatemeh Shahi, Parviz Parvin
Summary: In situ Raman spectroscopy was used to study the behavior of bare graphene oxide (GO) films and GO films decorated with Pt and Au nanoparticles (NPs) under different conditions. It was found that the GO films with metal NP decoration exhibited structural damage and increased defect density at higher temperatures, while the undecorated GO films were not affected by temperature. Moreover, the optical properties of the GO films changed significantly with the addition of metal NPs.
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)