Article
Materials Science, Multidisciplinary
Silvia Cruz, Gabriela Azevedo, Clara Cano-Raya, Noora Manninen, Julio C. Viana
Summary: This study investigated the use of silver and nickel screen printing inks for thermocouple development on polymeric substrates. The influence of sintering conditions on electrical resistivity and thermoelectric responses was evaluated, showing that the printed sensors performed similarly to a commercial Type-K sensor.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Thermodynamics
Istiaq Jamil Siddique, Arshad Adam Salema
Summary: This paper investigates the application of metallic thermocouples and proposes a method for accurate temperature measurement during microwave heating. The experiment results demonstrate that the placement of the thermocouple affects the temperature and electric field distribution. When placed on the top, the thermocouple interacts with the microwave electric field, leading to localized heating, inaccurate temperature readings, low microwave energy absorbance, and significant microwave leakage. However, when placed from the bottom, it provides reliable temperature readings and high microwave power absorption.
Article
Engineering, Electrical & Electronic
Nan Zhao, Qiulin Tan, Helei Dong, Junqi Pang, Xin Wang, Juan Zhang, Xue Yao
Summary: A platinum-platinum/rhodium thick-film thermocouple sensor based on an alumina curved-surface ceramic substrate was designed and tested for stability and repeatability at high temperatures. The sensor showed excellent consistency and reusability, making it suitable for measuring turbine blade surface temperature in aerospace applications.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Jose Rodrigo Quejigo, Benjamin Korth, Anne Kuchenbuch, Falk Harnisch
Summary: The study investigates the distribution of Geobacter spp. and their electrochemical performance within exemplary fixed-bed electrodes. Results show that approximately 10% of the bed volume, specifically near the current collector, achieves the majority of electroactivity. Despite Geobacter spp. dominating all sampled granules, engineered bed electrodes are needed to improve electron exchange between microorganisms and granules.
Article
Engineering, Electrical & Electronic
Muhammadeziz Tursunniyaz, Anna Meredith, Joseph Andrews
Summary: Aerosol jet printing is a simple, cost-efficient, and environmentally friendly method for patterning thin films with nanomaterial inks. This study demonstrates aerosol jet printed resistive temperature sensors with a temperature coefficient of resistance close to that of bulk silver. The overall sensitivity of the printed sensors can be modulated by controlling the thickness of the printed thin films. The response of the printed sensors to bending strain and humidity is also evaluated.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Engineering, Chemical
Dana Stan, Andreea-Cristina Mirica, Rodica Iosub, Diana Stan, Nicolae Bogdan Mincu, Marin Gheorghe, Marioara Avram, Bianca Adiaconita, Gabriel Craciun, Andreea Lorena Bocancia Mateescu
Summary: This study evaluates the cleaning efficiency of different chemical compounds and cleaning methods for screen-printed electrodes, and concludes that the best cleaning method is using a solution of H2O2 and multiple cyclic voltammetry with a low scanning speed.
Article
Chemistry, Multidisciplinary
Fabian M. Schuett, Sven J. Zeller, Maximilian J. Eckl, Felix M. Matzik, Maren-Kathrin Heubach, Tanja Geng, Johannes M. Hermann, Matthias Uhl, Ludwig A. Kibler, Albert K. Engstfeld, Timo Jacob
Summary: A simple method for fabricating stable 3D-printed micro-reference electrodes using polyvinylidene fluoride is proposed in this study, showing good chemical inertness in strong acids, bases, and non-aqueous solvents. Experimental results demonstrate the versatility and stability of this new class of micro-reference electrodes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Analytical
Marta Choinska, Vojtech Hrdlicka, Hana Dejmkova, Jan Fischer, Ludek Mika, Eva Vaneckova, Viliam Kolivoska, Tomas Navratil
Summary: This manuscript investigates the chemical and structural stability of 3D printing materials commonly used in electrochemistry, providing comprehensive information for the use of these materials in electrochemical platform manufacturing through the study of their properties changes after exposure to solvents and electrolytes.
Article
Chemistry, Multidisciplinary
Rui N. L. Carvalho, Cristina M. Cordas, Luis J. P. da Fonseca
Summary: This study compared the electrode kinetics and diffusion coefficients of two ion sol-gel and ion jelly materials through electrochemical characterization. The results showed a significant decrease in diffusion coefficients for ion jelly and ion sol-gel film modified electrodes, and the ion sol-gel film modified electrode had lower heterogeneous electron transfer constants.
APPLIED SCIENCES-BASEL
(2022)
Article
Nanoscience & Nanotechnology
D. Anastasia Aubeeluck, Cameron Forbrigger, Sara Mohseni Taromsari, Tianhao Chen, Eric Diller, Hani E. Naguib
Summary: With the development of miniaturized magnetically-controlled microgripper surgical tools, tactile haptic feedback technologies are required to limit tissue trauma. However, current tactile sensors cannot be integrated due to size limitations. This study introduces a novel thin and flexible resistive tactile sensor that shows promising electromechanical performance and can be mounted onto surgical tools to improve safety and quality of endoscopic surgeries.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Yanyan Niu, Helei Dong, Hanyu Wang, Tao Liu, Xiangpeng Li, Qiulin Tan, Jijun Xiong
Summary: This study designed and fabricated an all-ceramic material high-temperature test sensor using the thick-thin film integration process. Through various tests and evaluations, it was found that the sensor has good repeatability, stability, and dynamic response performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Joost L. D. Nelis, Davide Migliorelli, Lea Muehlebach, Silvia Generelli, Linda Stewart, Christopher T. Elliott, Katrina Campbell
Summary: A novel electrochemical immunosensor was developed for the detection of marine biotoxins DA and OA. The sensor showed excellent stability and sensitivity, achieving low LODs for both toxins in buffer and mussel extract.
Article
Biochemistry & Molecular Biology
Marie Elhachem, Elias Bou-Maroun, Maher Abboud, Richard G. Maroun, Philippe Cayot
Summary: Caffeic acid (CA) is an efficient antioxidant found in wine and plants. A specific molecularly imprinted polymer (CA-MIP) with high selectivity and good repeatability towards CA was prepared. Cyclic voltammetry was used to characterize the rebinding activities between the polymer and CA. This fast and simple method is suitable for further applications in wine sample analysis.
Article
Chemistry, Analytical
Rosecler Scacchetti Klein, Maiara Mitiko Taniguchi, Patricia Daniele dos Santos, Elton Guntendorfer Bonafe, Alessandro Francisco Martins, Johny Paulo Monteiro
Summary: This study proposed a new method for detecting the natural polyphenolic antioxidant Resveratrol (t-RESV) using unmodified screen-printed electrodes and differential pulse voltammetry (DPV). The optimized parameters allowed for accurate and rapid quantification of t-RESV, suitable for detection in commercial drugs.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2022)
Article
Engineering, Electrical & Electronic
Helei Dong, Tao Liu, Nan Zhao, Yanyan Niu, Xiangpeng Li, Hanyu Wang, Qiulin Tan, Feng He, Jijun Xiong
Summary: In this study, a temperature sensing smart skin was designed for high-temperature monitoring of pipelines and engine combustion chamber walls. A thin/thick film hybrid integrated manufacturing process was proposed to improve the high temperature stability of the sensor. The experimental results showed that the prepared thick-film thermocouple had good insulation performance and high temperature stability.
IEEE SENSORS JOURNAL
(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)