Article
Chemistry, Analytical
Yoshitake Masuda
Summary: This review focuses on tin oxide nanomaterials, which are actively researched as semiconductor-type gas sensors. The development and applications of novel tin oxide nanomaterials in the past decade are discussed, with a focus on how dimensions and morphology affect sensing performance. The dendritic structure formed by 2D nanosheets connected by crystal growth points towards future sensor development, while the high gas adsorption performance and reactivity of metastable crystal planes provide guidance for future sensor development.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Materials Science, Multidisciplinary
Xiaoli Xu, Wangwang Liu, Shengyi Wang, Xiaoping Wang, Yan Chen, Guoheng Zhang, Shuyi Ma, Shitu Pei
Summary: Pr-doped SnO2 hollow beaded tubular nanostructure was synthesized using electrospinning technique with carbon spheres as sacrificial templates. The sensor showed high response value, excellent selectivity, and rapid response-recovery ability to ethanol, effectively detecting ethanol vapor as low as 2 ppm. Possible enhancement mechanisms involving the unique nanostructure, carbon templates, and Pr dopant were discussed. This research may contribute to the improvement of ethanol sensors.
Article
Engineering, Electrical & Electronic
Meihua Li, Chao Mou, Yunfan Zhang, Xiao Li, Huichao Zhu, Guangfen Wei
Summary: Zn-doped SnO2 nanoparticles were synthesized and characterized by SEM, TEM, XRD, and XPS. The gas-sensitive performance of these nanoparticles was tested, and it was found that 4wt% Zn-doped SnO2 exhibited higher sensitivity, lower operating temperature, and greater stability. Density functional theory calculations were conducted to investigate the possible reasons for the improved sensing performance, including the generation of Schottky junctions and the reduction of adsorption energy.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Shuxing Bai, Yong Xu, Kailei Cao, Xiaoqing Huang
Summary: This study achieved selective EOR to CO2, with the optimized catalyst showing excellent performance, providing fundamental research for the design of efficient catalysts for EOR.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Grzegorz Gruzel, Kamil Szmuc, Elzbieta Drzymala, Przemyslaw Piekarz, Anna Pajor-Swierzy, Andrzej Budziak, Elena Pastor
Summary: When designing catalysts for direct ethanol fuel cell applications, the shape, structure, size, and chemical composition must be considered. This study explores the use of PtRhNi/SnO2 nanoframes as potential nanocatalysts for the anode of DEFC. The nanocatalysts showed higher activity and durability compared to PtRhNi nanoframes without SnO2 addition and commercially used Pt nanoparticles.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Mohammad Ehtisham Khan, Akbar Mohammad, Wahid Ali, Anwar Ulla Khan, Waleed Hazmi, Waleed Zakri, Taeho Yoon
Summary: This study investigates the fabrication and characterization of a tin oxide/cadmium sulfide (SnO2-CdS) nanostructure for enhancing photocatalytic efficiency and electrochemical detection of hydrazine. The SnO2-CdS nanostructure exhibits excellent physicochemical properties and shows superior performance compared to bare-CdS nanoparticles. It has a high photocatalytic activity for the degradation of antibiotic and dye pollutants, as well as a robust platform for the detection of hydrazine.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Analytical
Run-Hui Wang, Wei Wen, Shilie Zheng, Zhizhen Ye, Jin-Ming Wu
Summary: In this study, a layered mesoporous aggregate of tin oxide nanocrystals with high specific surface area and mesoporous structure was synthesized. The tin oxide showed high ethanol sensing performance at low temperatures, with high selectivity and stability. The ethanol sensing mechanism changed with increasing operating temperature.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Materials Science, Ceramics
Jian Fang, Xi Chen, Rong-Pu Xiao, Jing-Jing Xue, Ji-Ming Song
Summary: In this study, Pr-SnO2/In(2)O(3) composite material was successfully prepared by synthesis and decoration methods, and it showed good sensing performance for ethanol gas.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Xiaoyan Song, Fangzheng Zhao, Zhipeng Wang, Runbin Ge, Jinfeng Xing
Summary: In this study, ZnO@SnO2-Pt core-shell nanofibers with a hollow structure were successfully prepared and exhibited superior gas-sensing performance, achieving higher response speed and sensitivity on the basis of reduced operating temperature. Additionally, the gas-sensing mechanism of the nanofibers was discussed in detail.
ACS APPLIED NANO MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Yong Tan, Jun Zhang
Summary: In this work, an ethanol gas sensor based on Co-doped SnO2 nanobelts was fabricated. The Co-doped SnO2 nanobelts were prepared using chemical vapor deposition method and gas sensors were prepared using powder screen printing technology. The gas sensor based on Co-doped SnO2 nanobelts exhibited better gas response and shorter response time and recovery time compared to the gas sensor based on pure SnO2 nanobelts.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2023)
Article
Chemistry, Analytical
Li Wang, Shuyi Ma, Jianpeng Li, Andong Wu, Didi Luo, Tingting Yang, Pengfei Cao, Nina Ma, Yahui Cai
Summary: This work presents a method for synthesizing Mo-doped SnO2 nanotubes with uniform morphology, which enhances gas adsorption by creating new lattice defects. The optimal doping concentration of transition metal elements is essential for achieving the best sensing response in metal-oxide NTs gas sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Ceramics
Emanuel P. Nascimento, Rondinele N. Araujo, Hellen C. T. Firmino, Valmor R. Mastelaro, Francisco J. A. Loureiro, Gelmires A. Neves, Eliton S. Medeiros, Romualdo R. Menezes
Summary: This study utilizes the Solution Blow Spinning method to fabricate Al-SnO2/F-SnO2 hybrid fibers and applies them to room-temperature ethanol sensing. The results show that the composite material exhibits high sensitivity, short response/recovery times, and good selectivity and stability. The sensing response of the composite material is 9 times higher than pure SnO2 fibers, indicating its great potential.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Analytical
Chen Wang, Runlong Li, Lingyan Feng, Jiaqiang Xu
Summary: In recent years, the two-dimensional layered material MXene has gained significant attention in the field of sensors due to its large specific surface area and rich active sites. By preparing SnO2/MXene composites using multilayer Ti3C2TX and SnO2 microspheres, the gas-sensing properties of pristine SnO2 have been enhanced. The composite was used to fabricate low power consumption resistance-type gas sensors on a microelectromechanical system (MEMS) platform. The results showed that the SnO2/MXene sensor with the best composite ratio greatly improved the gas sensitivity of SnO2 sensor, particularly to ethanol gas. The composite also accelerated the response recovery speed of the sensor.
Article
Chemistry, Analytical
Haineng Bai, Hui Guo, Jin Wang, Yan Dong, Bin Liu, Fuqiang Guo, Dunjun Chen, Rong Zhang, Youdou Zheng
Summary: In this work, a low-cost and ecofriendly solvothermal strategy was used to prepare gas-sensing materials, resulting in the fabrication of a gas sensor based on Sb2O3/SnO2 nanospheres with exceptional response behavior to H-2 gas and stability.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Electrical & Electronic
Xuesi Li, Xianyin Hu, Ang Li, Reo Kometani, Ichiro Yamada, Kazuyuki Sashida, Makiko Noma, Katsufumi Nakanishi, Yusuke Fukuda, Toshiyuki Takemori, Kenichi Maehara, Katsuya Ikeda, Kenichi Yoshida, Yoshio Mita, Shin'ichi Warisawa
Summary: The elevated levels of acetone in human breath have the potential to be a non-invasive biomarker for predicting diabetes. This research focused on detecting acetone and its binary mixture in the air using a single SnO2-based metal oxide gas sensor. The sensor, optimized with a nanometric thin lines structure, was combined with a 1D-convolution neural network (1D-CNN) to identify acetone concentrations. The study found that amplitude and high-frequency information of resistance fluctuation were crucial for gas recognition.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Energy & Fuels
Yuzhe Liu, Hao Wang, Chengcai Li, Shaohui Wang, Lin Li, Chengwen Song, Tonghua Wang
Summary: This study utilized waste PI film to fabricate flaky porous carbon materials with tailored pore structure and functional groups through KOH activation, achieving excellent electrochemical performance. The materials showed high specific capacitance, good capacitance retention rate, and low impedance, making them promising electrode materials for supercapacitors.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Inorganic & Nuclear
Biao Guo, Ruisong Xu, Jing Liang, Lie Zou, Andreas Terfort, Ziqi Tian, Pingying Liu, Tonghua Wang, Jinxuan Liu
Summary: We demonstrate the synthesis of two-dimensional metal-organic framework nanosheets through dialysis, and the resulting polyimide membranes exhibit molecular sieve effects. Molecular dynamic simulations show that the structure of MOF-polymer interfaces can be designed to influence gas permeability and selectivity. Cu-NDC/PI shows superior performance in H2/CH4 and CO2/CH4 separations.
INORGANIC CHEMISTRY
(2022)
Article
Engineering, Chemical
Wenhui Ji, Huibin Geng, Zishang Chen, Hao Dong, Hideto Matsuyama, Haitao Wang, Hong Wang, Jianxin Li, Wenxiong Shi, Xiaohua Ma
Summary: This study demonstrates the synthesis of highly efficient hydrogen separation membranes using an ozone oxidation method. These membranes exhibit high permeability, selectivity, and offer a new approach in the search for high-performance hydrogen separation membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Ting Fu, Peng-Chao Li, Hong-Cheng He, Shuang-Shuang Ding, Yong Cai, Ming Zhang
Summary: This study proposes a new strategy for preparing Fe9S10 composites by adding sulfur powder into the electrospinning precursor. The composites demonstrate higher rate capacities and better stability compared to those synthesized by traditional methods. The excellent stability and high capacity can be attributed to the nearly full-wrapped structure of Fe9S10 in the carbon matrix.
Article
Chemistry, Physical
Ruisong Xu, Mengjie Hou, Yue Wang, Lin Li, Zonglin Pan, Chengwen Song, Tonghua Wang
Summary: The carbon molecular sieve (CMS) membranes derived from a novel precursor polymer of phenolphthalein-based poly(arylene ether ketone) (PEK-C) exhibit high C2H4 permeability and superior C2H4/C2H6 selectivity, showing great potential for industrial applications of C2H4/C2H6 separation.
Article
Chemistry, Physical
Hao Tian, Yujun Zhang, Ziyang Zhang, Tingting Lv, Lei Bian, Hong Wang, Jianxin Li, Yusuke Yamauchi, Zhong-Li Wang
Summary: This study demonstrates a new technology to directly convert cyclohexane to adipic acid by electrocatalytic water oxidation, which generates hydroxyl radicals and achieves optimized conversion and selectivity. This provides opportunities for oxidatively converting inexpensive hydrocarbons to value-added chemicals.
Article
Electrochemistry
Jian Gao, Xuejiao Hu, Jianzhou Gui, Hong Wang, Yuan Li, Xiaoyao Tan, Zhen Yin, Na Ma
Summary: Non-precious transition metal oxides, such as the perovskite-type oxide LSCF, show potential as cost-effective alternatives to noble metal electrocatalysts. However, the catalytic activity of LSCF prepared by conventional methods for the oxygen reduction reaction (ORR) needs improvement. In this study, LSCF prepared by spray pyrolysis process demonstrates high ORR activity, attributed to its rich surface edges and oxygen vacancy.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2023)
Article
Engineering, Chemical
Qianqian Wei, Zihan Tian, Hong Wang, Shuhao Qin, Qingqing Qin, Jing Zhang, Zhenyu Cui
Summary: This study investigates the influence of flexibility and rigidity of hydrophilic chains on the anti-fouling capacity of membrane surfaces. The results show that the impact of grafting chains' flexibility and rigidity is more significant than the surface hydrophilicity and charging property. Furthermore, the study explains the dispersion-impedance dual synergistic mechanism of the combined flexible chain and rigid chain, which significantly weakens the adhesion force for dyes on the membrane surface and delays the formation of irreversible fouling.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Shenyi Tang, Junjie Yang, Biao Wu, Jing Zhang, Jianxin Li, Benqiao He, Hong Wang, Zhenyu Cui
Summary: In this work, an organic-inorganic hybrid separation layer was fabricated on the membrane outer surface using polyvinylamine-tannic acid-metal ion co-deposition, dual cross-linking, and biomineralization. The introduction of mineralized substances significantly improved the separation performance of the NF membrane, increasing permeability by 2.7 times and maintaining high removal capacity for Mg2+ and Ca2+. The NF membrane also exhibited satisfactory acid resistance, anti-fouling capacity, and stable operation, making it a promising candidate for wastewater recovery and rapid desalination.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Weiming Wang, Ji Li, Bo Hu, Shiqiang Zhou, Yong Cai, Ming Zhang
Summary: The Ag-SnO2 nanofiber gas sensor shows high selectivity and response to H2S, with a reversible transformation mechanism between Ag2S and Ag2SO4. This differs from the transformation between Ag2O and Ag2SO4. This study provides a new strategy for designing sensors with high selectivity.
Article
Engineering, Chemical
Yatao Weng, Nanwen Li, Zelong Xu, Jianjun Huang, Lujun Huang, Hong Wang, Jianxin Li, Yali Wang, Xiaohua Ma
Summary: Two novel highly crosslinked and partially carbonized molecular sieve membranes (CCMSM) were reported, which partially achieved the goals of high performance, robustness, and reliability. By thermally treating a bromomethyl substituted alternative intrinsic microporous polymer at low temperatures, two PIM-BA-340 and PIM-BA-350 CCMSMs with excellent solvent resistance, thermal stability, and good mechanical strength were obtained.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Wentao Qu, Yong Cai, Baohui Chen, Ming Zhang
Summary: This study introduces heterointerface engineering-induced oxygen defects into heterostructure MnO2 (da-MnO2) through in situ electrochemical activation to inhibit manganese dissolution for aqueous zinc ion batteries. Experimental results show that the manganese dissolution of da-MnO2 is significantly inhibited during the charge/discharge cycle. Theoretical analysis indicates that the oxygen defect regulates the electronic and band structure and the Mn-O bonding state of the electrode material, thereby promoting electron transport kinetics as well as inhibiting Mn dissolution. Consequently, da-MnO2 exhibits excellent cycling stability and capacity retention in aqueous zinc ion batteries.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Education & Educational Research
Yimin Tong, Christian D. Schunn, Hong Wang
Summary: The number of raters in peer assessment has a significant impact on its reliability and validity. However, this aspect has been rarely studied. The study examines how changing the number of required peer assessments and raters per document affects the reliability and validity of peer assessment for tasks at different levels of complexity.
STUDIES IN EDUCATIONAL EVALUATION
(2023)
Article
Chemistry, Multidisciplinary
Yin Fu, Bo Hu, Guozhi Ma, Ming Zhang
Summary: Polydopamine (PDA) is a promising anode material for potassium ion batteries (PIBs) due to its convenient preparation, environment friendliness, and low cost. However, its low conductivity leads to dissolution of active substance during cycling, resulting in poor rate performance and cycle life. This study polymerized dopamine onto a carbon-intertwined network of carbon nanotubes (CNTs) to address this issue. The pi-pi superposition effect between dopamine and CNTs effectively alleviates the dissolution of PDA, resulting in enhanced battery cycle performance.
Article
Electrochemistry
Jian Gao, Mengxin Zhou, Xinyao Wang, Hong Wang, Zhen Yin, Xiaoyao Tan, Yuan Li
Summary: The oxygen reduction reaction (ORR) is crucial for clean energy storage and conversion. However, due to slow kinetics and expensive catalyst requirements, the wide application of fuel cells and other clean power sources is hindered. Therefore, finding low-cost metal catalysts is of great importance. In this study, a Co3O4 catalyst supported on N-doped carbon was prepared and exhibited similar electrocatalytic activity to commercial Pt/C catalysts.
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)
