Article
Chemistry, Physical
Bo Zhang, Nan Bao, Tao Wang, Yin Xu, Yue Dong, Yi Ni, Pingping Yu, Qufu Wei, Jing Wang, Lanlan Guo, Yi Xia
Summary: A batch of In2O3 nanowires were prepared using a simple electrospinning method and sintering process, showing high purity and crystallinity through XRD analysis. The nanowires exhibited high quality and uniformity based on FESEM and TEM analysis. The sensor based on In2O3 NWs showed high selectivity towards NO2 and low detection limit, but had a significant defect of long recovery process, which was successfully solved by introducing visible light irradiation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Analytical
Jinyu Huang, Dongting Jiang, Jiaxi Zhou, Jiexiong Ye, Yiling Sun, Xuejin Li, Youfu Geng, Jiaqi Wang, Yu Du, Zhengfang Qian
Summary: This study synthesized CuPc-loaded ZnO nanorods using a one-step microwave-assisted hydrothermal approach and characterized the products using various techniques. The CuPc/ZnO sensor showed excellent sensitivity and selectivity towards ammonia under light illumination, with a low detection limit of 0.8 ppm under red light.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Jiangnan Chang, Cong Qin, Weijie Guo, Linghao Zhu, Yan Zhang, Yan Wang, Jianliang Cao
Summary: In this study, a high-performance NO2 gas sensor at room temperature was explored by modifying a SnS2 hierarchical structure with Au nanoparticles. The sensor showed outstanding NO2 sensing properties, including high response at low concentrations, excellent response/recovery time, low detection limit, satisfactory selectivity, and repeatability.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Materials Science, Multidisciplinary
Turki Alkathiri, Kai Xu, Zhengdong Fei, Guanghui Ren, Nam Ha, Muhammad Waqas Khan, Nitu Syed, Ahmed F. M. Almutairi, Bao Yue Zhang, Rui Ou, Yihong Hu, Jiaru Zhang, Torben Daeneke, Jian Zhen Ou
Summary: In this study, two-dimensional layered-like silver sulphate nanosheets were successfully prepared via a combined annealing-exfoliation process, and their potential application in optoelectronic gas sensors was discovered.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Analytical
Myung Sik Choi, Han Gil Na, Jae Hoon Bang, Ali Mirzaei, Seungmin Han, Ha Young Lee, Sang Sub Kim, Hyoun Woo Kim, Changhyun Jin
Summary: Gas sensors were fabricated by decorating amorphous carbon layers on SnO2 nanowires, without the need for pretreatment or functionalization, and operated at room temperature. The amorphous carbon increased surface area and improved NO(2) gas sensing by providing electronic effects to the SnO2.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Yi Xia, Sufang He, Junming Wang, Liexing Zhou, Jing Wang, Sridhar Komarneni
Summary: This study presents a room-temperature visible-light-activated optoelectronic NO2 sensor based on 2D/2D T3C2Tx/WS2 nanocomposites, which exhibited excellent performance and provides a promising method for fabricating high-performance gas sensors at room temperature based on 2D nanomaterials.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Analytical
Vo Thanh Duoc, Chu Manh Hung, Hugo Nguyen, Nguyen Van Duy, Nguyen Van Hieu, Nguyen Duc Hoa
Summary: The grafted structures between SnO2 and ZnO nanowires were achieved through a two-step growth process, showing promising sensitivity for NO2 gas sensing.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
Yanhui Sun, Zhihua Luo, Shupeng Sun, Chuanxi Wang, Zhen Li, Haiying Du
Summary: The design of high-performance NO2 sensors that work at room-temperature is crucial for expanding the range of NO2 detection applications. In this study, Cr-modified ZnO@ graphene-like UC composite sensors were prepared to improve the detection sensitivity of ZnO to NO2 at room temperature. The sensor exhibited excellent NO2 sensing performance, with a response value of 2.7 at a NO2 concentration of 1 ppm. The enhanced sensing performance was attributed to the band gap narrowing and improved electron transition ability due to Cr modification, as well as the formation of new chemical bonds and enhanced electron transfer through orbital hybridization of O, Cr, and ZnO.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Yanjie Wang, Yong Zhou, Jing Li, Ruijie Zhang, Hongchao Zhao, Yuhang Wang
Summary: In this study, Ag nanoparticles modified BP nanosheets were used as a sensing layer for the first time to detect trace NO2 at room temperature. The optimized composition of BP-Ag nanocomposites achieved enhanced response, faster response speed, and improved operation stability. In addition, a protective layer of polylactic acid (PLA) was introduced to retain the distinguishable signal towards trace NO2 in high moisture environments.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Jing Hu, Chenming Yin, Shouxi Xu, Miao Cheng, Tao Wei, Qianqian Liu, Wanfei Li, Yun Ling, Yafei Zhang, Bo Liu
Summary: A highly sensitive gas sensor for detecting NO2 at room temperature has been developed using N-doped carbon nanosheets-incorporated zinc oxide. The sensor exhibits fast response time, high selectivity, and cyclic stability, and the performance can be further improved by white light illumination.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Ceramics
V. Paolucci, J. De Santis, L. Lozzi, M. Rigon, A. Martucci, C. Cantalini
Summary: This study reports on the detection of ppb-level NO2 using ZnO nanocrystalline film with visible-light and mild thermal-activation modes. Trivalent and tetravalent doping trigger fast response behavior, with the best performance seen from a combination of purple-blue light and thermal activation. The influence of relative humidity on gas sensing performances is also investigated, with a slight decrease in NO2 response observed at 40% RH.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Analytical
Xiqian Sun, Qing Lan, Jing Geng, Mengli Yu, Yecheng Li, Xiaohong Li, Li Chen
Summary: By assembling TiO2 nanoparticles decorated with polyoxometalate (POM) and organic dye molecules, we have achieved accelerated room-temperature sensing of NO2 gas under visible light illumination. This method improves the sensitivity and response/recovery time of the gas sensors, while maintaining high selectivity and relatively low detection concentration.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Olga Qomaruddin, Olga Casals, Hutomo Suryo Wasisto, Andreas Waag, Joan Daniel Prades, Cristian Fabrega
Summary: This work presents nitrogen dioxide (NO2) gas sensors based on zinc oxide nanorods (ZnO NRs) decorated with gold nanoparticles (Au NPs) that function under visible-light illumination. The study demonstrates the contribution of localized surface plasmon resonant (LSPR) by Au NPs attached to ZnO NRs. The presence of LSPR extends the functionality of ZnO NRs and increases the response at different wavelengths.
Article
Engineering, Environmental
Chaohan Han, Xiaowei Li, Yu Liu, Xinghua Li, Changlu Shao, Jisong Ri, Jiangang Ma, Yichun Liu
Summary: A room-temperature NO2 sensor with greatly enhanced sensitivity and rapid response/recovery speed under ultraviolet (UV) illumination has been proposed. The sensor based on In2O3/ZnO yolk-shell nanofibers exhibits remarkable sensitivity and quick response/recovery time, outperforming the performance in dark conditions. These results were attributed to the improved photo-generated charge separation efficiency and increased reactive sites and gas adsorption provided by the heterojunction effect of In2O3/ZnO yolk-shell nanofibers.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
M. Benamara, S. Soreto Teixeira, M. P. F. Graca, M. A. Valente, Suresh Kumar Jakka, H. Dahman, E. Dhahri, L. El Mir, M. Debliquy, D. Lahem
Summary: ZnO nanoparticles were prepared using the auto-combustion method, exhibiting hexagonal wurtzite structure. The samples showed high conductivity and promising gas detection capabilities, with a sensor response to NO2 concentrations and wavelengths, especially at UV wavelengths, resulting in high response rates for gas detection applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Coatings & Films
Jin-Kun Xiao, Tian-Tian Li, Juan Chen, Chao Zhang
Summary: In this study, AlCoCuNi-based high-entropy alloy coatings were prepared by atmospheric plasma spraying. The effects of Si and Ti alloying elements on the microstructure, microhardness, corrosion resistance, and wear resistance of the coatings were investigated. The results showed that Ti addition improved the corrosion resistance, while Si addition reduced the friction coefficient and wear rate.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2023)
Article
Materials Science, Coatings & Films
Kaichun Xu, Kewei Liu, Hanlin Liao, Sergi Dosta, Chao Zhang
Summary: Hollow spherical ZnO was prepared and fabricated into gas sensors using suspension plasma spraying. The study shows that the gas sensing properties of the ZnO coatings increase with the increase of CO2 concentration and relative humidity at room temperature.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2023)
Article
Engineering, Environmental
Kewei Liu, Zichen Zheng, Marc Debliquy, Chao Zhang
Summary: This study selected ZnFe2O4 and ZnSnO3 as materials to design a novel heterostructure for highly sensitive and selective detection of 1-octen-3-ol gas. By modulating the loading amount of ZnFe2O4, fine-tuned surface oxygen vacancies and highly-efficient electron transition of the nanocomposites were achieved, resulting in significantly enhanced response, low limit of detection, optimized selectivity, and excellent long-term stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Food Science & Technology
Kaidi Wu, Marc Debliquy, Chao Zhang
Summary: Fish are prone to spoilage and deterioration, making it necessary to develop rapid and efficient techniques for detecting and evaluating fish freshness. Metal-oxide-semiconductor resistive (MOSR) gas sensors have been extensively studied in recent years and show promising practical application prospects due to their advantages such as low cost, small size, easy integration, and high sensitivity. This review summarizes the physical and chemical changes of fish during spoilage, the volatile marker gases released, and their production mechanisms. It also discusses the advantages, performance parameters, and working principles of gas sensors, as well as the research progress of MOSR gas sensors for detecting different volatile marker gases of fish spoiling.
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
(2023)
Article
Materials Science, Multidisciplinary
Thu Thuy Pham, Thuy Duong Nguyen, Anh Son Nguyen, Thi Thao Nguyen, Maurice Gonon, Alice Belfiore, Yoann Paint, Thi Xuan Hang To, Marie-Georges Olivier
Summary: The corrosion behavior and products of zinc alloy-coated steel substrates with different Al and Mg contents were studied during immersion in NaCl solution. The addition of Al and Mg affected the corrosion mechanism and anticorrosion properties. The main corrosion products on the different substrates were identified, and the corrosion resistance of ZA and ZM substrates was improved compared to HDG substrate.
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2023)
Article
Engineering, Mechanical
Jin-Kun Xiao, Chen Wang, Shu-Xian Xiao, Juan Chen, Chao Zhang
Summary: Metal fiber brush, with its unique structure, shows promising application in high current density and non-lubricating conditions. This study investigates the influence of current on the sliding electrical contact properties of copper fiber brush and reveals the wear mechanisms involved through characterization of the worn surfaces.
Article
Electrochemistry
T. T. Nguyen, C. Arrighi, T. T. Thai, L. Dangreau, M. F. Gonon, A. T. Trinh, M. -g. Olivier
Summary: The corrosion protection of zinc-based sacrificial coatings alloyed with Al and Mg was investigated in 0.1 M NaCl solution. The effect of cerium chloride and nitrate salts on the coatings was evaluated using various techniques. Cerium salts showed the best effectiveness for hot-dip galvanized coatings, followed by ZnAl, Zn, and ZnAlMg coatings. The inhibition efficiency of Ce (III) ions was stable and higher than 82.5% for all types of substrate. Moreover, cerium chloride presented higher protection than cerium nitrate in long immersion time.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Sajjad Akbarzadeh, Yoann Paint, Marie-Georges Olivier
Summary: Due to the porous nature of the coatings produced through the plasma electrolytic oxidation (PEO) process, sol-gel coatings have been widely studied as a post-treatment to enhance the protective characteristics. This study investigated the sealing ability and corrosion resistance properties of four types of PEO/sol-gel coating systems on AA2024 alloy using different sol-gel precursors. The performances of the coatings were evaluated through electrochemical impedance spectroscopy (EIS) and Scanning Vibrating Electrode Technique (SVET) analysis. The results showed that the sealing ability and corrosion resistance of the duplex PEO/sol-gel coating were greatly influenced by the sol-gel precursors and their network properties.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Hafiza Ayesha Khalid, Sajjad Akbarzadeh, Yoann Paint, Veronique Vitry, Marie-Georges Olivier
Summary: The application of sol-gel on PEO coatings can enhance wear resistance by sealing surface defects. Different sol-gel formulations were used to seal PEO pores, and the sol-gel with GPTMS and ZTP showed good lubrication and wear resistance.
Article
Materials Science, Multidisciplinary
Alexandre Megret, Loic Prince, Marie-Georges Olivier, Veronique Vitry
Summary: The use of lightweight materials is required in automotive and aerospace fields. Magnesium and its alloys possess low density, high mechanical properties, and excellent thermal conductivity. However, they suffer from low corrosion and wear resistances. The combined action of corrosion and wear is critical for these materials.
Article
Physics, Applied
Liangchao Guo, Haoran Han, Yi Li, Chen Ye, Junfeng Cui, Chaoyue Zheng, Guanglong Ding, Yongbiao Zhai, Ye Zhou, Chao Zhang
Summary: In this study, a V2CTx gasistor (gas memristor) was used for ultrafast detection of SO2, with gas response and memory functions realized. The gasistor showed the highest pulse-controlled paired-pulse facilitation (PPF) ratio (210.4%) for 10 ppm SO2 under 10 ms electric pulse interval, 1.34 times higher than under air. It also exhibited excellent repeatability and stability, with promising applications in rapid detection, medical treatment, and artificial sensing memory for toxic gases.
APPLIED PHYSICS LETTERS
(2023)
Review
Materials Science, Ceramics
Jinyong Xu, Xiaoxi He, Kaichun Xu, Hanlin Liao, Chao Zhang
Summary: In this review, the process-structure-performance correlations of metal oxide nanostructures in methanol detection are analyzed. The sensing mechanisms of nanostructured metal oxides operated at different temperatures are introduced. Various synthesis processes used to modulate the structure and morphology of metal oxide nanostructures are discussed. Optimization strategies including doping, surface modifications, newly designed structures and morphologies are enumerated to enhance the sensing properties. The challenges and future research directions of advanced methanol sensors based on metal oxide nanostructures are proposed.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Mohammad Hossein Rahmani, Fatemeh Marhamati, Seyyed Arash Haddadi, Marie-Georges Olivier, Mohammad Mahdavian
Summary: A core/shell structure based on zinc salt of 2-mercaptobenzoxazole (Zn.MBO) and N-doped carbon hollow sphere (NCHS) was synthesized and characterized in this study. The corrosion protection performance of the encapsulated Zn.MBO in NCHS (Zn.MBO@NCHS) was evaluated on bare and epoxy-coated AA2024. The release of MBO and zinc cation from the capsules was analyzed at different pH levels. The electrochemical impedance spectroscopy results demonstrated that Zn.MBO@NCHS significantly enhanced the corrosion resistance of the scratched coated samples after 72 hours of immersion, indicating its active inhibitive function.
Article
Materials Science, Multidisciplinary
Jin-Yong Xu, Kai-Chun Xu, Xiao-Xi He, Han-Lin Liao, Marc Debliquy, Qiao-Quan Liu, Chao Zhang
Summary: In this study, ZnSnO3-based heterojunctions were successfully synthesized and their sensing properties towards methanol at room temperature were investigated. Among them, ZnO/ZnSnO3 hollow microcubes exhibited outstanding sensing performance and could be used for on-field monitoring of methanol in chemical reactions.
Article
Chemistry, Physical
Kaichun Xu, Mengjie Han, Zichen Zheng, Jinyong Xu, Marc Debliquy, Chao Zhang
Summary: This study fabricated highly sensitive Er-doped LaFeO3-based sensors for detecting isoamyl alcohol, a biomarker of wheat mildew. These sensors showed extraordinary response, selectivity, repeatability, and long-term stability. The superior sensing performance could be attributed to factors such as smaller particle size, higher concentration of oxygen vacancies and chemisorbed oxygen, larger specific surface area, and narrower band gap.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
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)
