Article
Chemistry, Physical
Zahra Rajabi, Mehran Javanbakht, Khadijeh Hooshyari, Mina Adibi, Alireza Badiei
Summary: This research successfully fabricated H3PO4 doped polybenzimidazole/ionic liquid composite membranes for high-temperature fuel cell applications by introducing SBA-15 mesoporous. The addition of PAMAM mesoporous as protectors significantly improved the stability of the composite membranes under elevated temperature conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Bingbing Niu, Shijing Luo, Chunling Lu, Wendi Yi, Jiantao Liang, Shuang Guo, Deng Wang, Feng Zeng, Shichun Duan, Yang Liu, Lihua Zhang, Baomin Xu
Summary: Increasing the operating temperature of polymer electrolyte fuel cells (PEFCs) can enhance reaction kinetics, improve CO tolerance of catalysts, and simplify water-heat management systems. In this study, an ionic liquid-based polymer electrolyte was successfully fabricated, demonstrating promising performance for high temperature PEFCs. The composite membrane showed high proton conductivity and stable output performance at elevated temperatures.
SOLID STATE IONICS
(2021)
Review
Chemistry, Physical
Siva Moorthy, Gandhimathi Sivasubramanian, Dinakaran Kannaiyan, Paradesi Deivanayagam
Summary: The world's reliance on hydrocarbon fuel has become the main source of energy production, but the emissions from its extraction and utilization pose a significant threat to the environment and human life. In search of green energy solutions, polymer electrolyte membrane fuel cells (PEMFCs) have emerged as promising clean energy producers. Researchers have recently focused on high-temperature polymer electrolytes based on polybenzimidazole (PBI) due to their chemical and thermal stability, as well as their ability to control proton mobility through fillers. This review summarizes the advancements made by various researchers in addressing the limitations of PBI-based polymer electrolyte membranes in high-temperature PEMFCs, including structural modifications such as phase inversion, semi-interpenetrating IPNs, branched blocks, as well as physical modification methods like crosslinking, blending, and doping. © 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Dedar Emad Hussin, Yagmur Budak, Yilser Devrim
Summary: In this study, PBI/BN composite membranes were prepared for high-temperature PEM fuel cells, with a study on the loading of BN and various characterizations and performance tests conducted. The PBI/BN-2.5 membrane showed the highest conductivity at 180 degrees Celsius, indicating potential for high-temperature PEMFC applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Analytical
Liang Wang, Jianxin Yi
Summary: This work presents a surface modification approach to optimize the H2 sensing properties of a mixed ionic-electronic conducting Pr0.1Ce0.9O2-delta electrode. The results show that loading acidic oxides, particularly SnO2, greatly enhances the sensing performance, including improved response and sensitivity, decreased limit of detection and response time. Electrochemical analyses reveal that SnO2 modification affects the oxygen exchange and hydrogen oxidation reactions, leading to enhanced sensing properties. These findings provide an easy method to boost H2 sensing by tailoring the electrochemical activities.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Review
Energy & Fuels
Khadijeh Hooshyari, Bahman Amini Horri, Hamid Abdoli, Mohsen Fallah Vostakola, Parvaneh Kakavand, Parisa Salarizadeh
Summary: This review summarizes the current status, operating principles, and recent advances in high-temperature polymer electrolyte membranes (HT-PEMs), particularly focusing on proton conductivity and degradation mechanisms. The discussion includes fuel cell performance and lifetime in relation to operating conditions, as well as important outcomes found in recent literature on HT-PEM fuel cells. Major objectives include developments in HT-PEMs based on polybenzimidazole membranes and advancements in fuel cell performance and lifetime.
Review
Biochemistry & Molecular Biology
Leong Kok Seng, Mohd Shahbudin Masdar, Loh Kee Shyuan
Summary: The increasing global energy demand and depletion of fossil fuels have led to the exploration of sustainable and green energy sources, with high-temperature polymer electrolyte membrane fuel cells showing promise. Recent developments have highlighted the potential of phosphoric acid-doped polybenzimidazole membranes, but challenges with leaching and condensation have limited their application. The introduction of ionic liquids as new doping materials has shown promise in improving the performance of PA-PBI membranes in HT-PEMFC applications.
Article
Chemistry, Multidisciplinary
Muhammad Luthfi Akbar Trisno, Asridin Dayan, Su Ji Lee, Franz Egert, Martina Gerle, Mikkel Rykaer Kraglund, Jens Oluf Jensen, David Aili, Aleksandra Roznowska, Artur Michalak, Hyun S. Park, Fatemeh Razmjooei, Syed-Asif Ansar, Dirk Henkensmeier
Summary: This study presents a new membrane fabrication process using PBI and KOH to create high conductivity membranes. The PBI cast membranes showed a significantly higher conductivity than conventional PBI membranes. The addition of a porous support also improved the mechanical strength and stability of the KOH doped PBI membranes.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Energy & Fuels
Andrea Baricci, Andrea Casalegno
Summary: High-temperature proton exchange membrane fuel cells (HT-PEMFC) utilize a phosphoric acid-doped polybenzimidazole membrane to convert hydrogen and oxygen into electric power at temperatures up to 200°C. However, PBI-based HT-PEMFCs face performance limitations that hinder their efficiency and power density, primarily due to the negative impact of air humidification on charge transfer and mass transport impedances. Water vapor reduces phosphoric acid density and leads to liquid flooding and electrocatalyst poisoning, further hindering performance.
Article
Chemistry, Analytical
Qian Xia, Cuiping Gu, Xingxing Xie, Haibo Ren, Sang Woo Joo, Jiarui Huang
Summary: In this study, Sn-doped Fe2O3 microflowers were synthesized and used as sensing materials for acetone sensors. The microflowers exhibited good selectivity, high sensitivity, and stability for acetone vapor detection, with enhanced adsorption of acetone molecules.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Green & Sustainable Science & Technology
Zehua Wang, Jin Zhang, Shanfu Lu, Yan Xiang, Zongping Shao, San Ping Jiang
Summary: Development of high temperature polymer electrolyte membrane fuel cells (HT-PEMFCs) at elevated temperatures is essential for improving CO tolerance and developing non-precious metal catalysts. This study investigates the in situ formation of metal pyrophosphates in phosphoric acid doped polybenzimidazole (PA/PBI) composite membranes, and their influence on proton conductivity and performance of HT-PEMFCs.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Chemistry, Analytical
Yan Gong, Xiaofeng Wu, Xiaofei Li, Anqi Wang, Min Zhang, Yunfa Chen
Summary: Core-shell Pt@Al-doped ZnO nanoparticles were synthesized and assembled into a sensor, showing excellent sensitivity and low detection limit towards acetone. The synergistic effect between Al doping and metal-ZnO hetero-interfaces significantly improves the acetone sensing properties of the sensor.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Ankit Kumar Vishwakarma, Ajaya Kumar Sharma, Nitish Kumar Yadav, Lallan Yadava
Summary: The research focuses on gas sensing devices using CdS-doped TiO2 nanocomposite films, with optimized CdS doping showing a high response to acetone. XRD and AFM images were used to describe the results, and possible mechanisms for the finely tuned sensing properties were discussed.
Article
Chemistry, Physical
Dan Wu, Samindi Madhubha Jayawickrama, Tsuyohiko Fujigaya
Summary: This study investigates the effect of polymer-coating on the durability of Pt nanoparticles in polymer electrolyte membrane fuel cells (PEMFC). The results show that using a polymer-coated catalyst leads to a smaller decrease in maximum power density after accelerated durability tests, indicating the potential of the polymer-coating method to improve PEMFC durability.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Samindi Madhubha Jayawickrama, Tsuyohiko Fujigaya
Summary: In order to reduce the usage of Pt in polymer electrolyte membrane fuel cell electrocatalysts, improving the Pt utilization efficiency is crucial. This study investigates the effect of polybenzimidazole (PBI) wrapping on carbon blacks (CBs) to enhance Pt utilization efficiency, with HSA CBs showing a greater improvement compared to LSA CBs. The mechanism behind the improvement is mainly related to the micropore capping by PBI wrapping, which increases the electrochemical active surface area as well as the proton conductivity and O-2 diffusion.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Junping Zhao, Yahui Wang, Yudan Qian, Huile Jin, Xinyue Tang, Zaimei Huang, Jiayi Lou, Qingcheng Zhang, Yong Lei, Shun Wang
Summary: Engineering core-shell materials with rationally designed architectures and components is an effective strategy for high-performance supercapacitors. In this study, a hierarchical candied-haws-like NiCo2S4@NiCo(HCO3)(2) core-shell heterostructure (NiCo2S4@HCs) was designed, which not only creates more electroactive sites but also suppresses volume expansion during charge-discharge processes. The formation of NiCo2S4@HCs heterostructure facilitates OH- adsorption/desorption and accelerates electron transfer within the electrode, resulting in fast and efficient redox reactions. The experimental results demonstrate an ultrahigh capacitance and remarkable rate capability, as well as high energy density and excellent cycling stability in the asymmetric supercapacitor NiCo2S4@HCs//AC.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhangchuan Wen, Rong Lu, Kai Zheng, Fan Gu, Lijie Zhang, Huile Jin, Yihuang Chen, Shun Wang, Shuang Pan
Summary: A novel electrospinning strategy was developed to construct chiral perovskite nanosheets (PNSs) protected in polymer hybrid nanofibers. The quasi-2D chiral PNS/polymer exhibited inherent chirality and enhanced blue emissive circularly polarized luminescence (CPL) properties at room temperature. The obtained PNS/polymer hybrid nanofiber films showed potential applications in circularly polarized light emitting diode devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Mengya Jin, Mingyue Teng, Shun Wang, Keqin Yang, Juan Wang, Huile Jin
Summary: A facile hydrothermal and heat treatment process was used to synthesize Pt-based nanocapsules, which exhibited excellent hydrogen evolution activity. The interface between crystalline Pt and amorphous TeOx as well as the strong electron transfer contributed to the alkaline hydrogen evolution activity. This work opens up a new direction for efficient catalyst preparation in electrocatalytic reactions or other conversion fields.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Defeng Qi, Jie Xu, Yitong Zhou, Hao Zhang, Jianqiao Shi, Kun He, Yifei Yuan, Jun Luo, Shun Wang, Yong Wang
Summary: Novel cyclodextrin-supported Co(OH)2 cluster catalysts were prepared, which exhibited remarkable H2O2 selectivity, good stability, and ultra-high H2O2 production yield rate, showing great potential for industrial application.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Xiaohui Wang, Zaimei Huang, Huile Jin, Shun Wang, Qingcheng Zhang, Hongping Xiao, Xingen Hu, Juan Li, Shouri Sheng
Summary: Porous carbon materials were successfully prepared from Cistanches herba residues through pre-carbonization and KOH activation method. The as-prepared carbon possessed abundant micropores, high specific surface area, and good affinity for electrolyte. Supercapacitors based on the carbon materials exhibited good specific capacitance and energy density, as well as excellent cycling stability. This research provides a new avenue for the high-value utilization of traditional Chinese medicine residues.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Zhuanxia Li, Lianghao Yu, Xin Tao, Yun Li, Linlin Zhang, Xuedong He, Yan Chen, Sha Xiong, Wei Hu, Jun Li, Jichang Wang, Huile Jin, Shun Wang
Summary: Honeycomb-shaped MoSe2/reduced graphene oxide (rGO) composite materials synthesized through a solvothermal process show excellent sodium-ion storage properties, attributed to the unique honeycomb microstructure and the use of ether-based electrolytes.
Article
Nanoscience & Nanotechnology
Yan Li, Jiabing Liu, Xingbo Wang, Xiaomin Zhang, Ning Chen, Lanting Qian, Yongguang Zhang, Xin Wang, Zhongwei Chen
Summary: In this study, a CoFe2O4@reduced graphene oxide (CFO@rGO) composite is used to modify the separator in order to develop a multifunctional polysulfide barrier for lithium-sulfur batteries. The results show that the CFO@rGO/PP separator exhibits satisfactory cycling performance and superb rate performance, providing valuable insights for future research on using spinel-type materials as electrocatalysts for Li-S batteries.
Review
Chemistry, Physical
Zhixi Guan, Lin Yang, Lianhui Wu, Daying Guo, Xi'an Chen, Shun Wang
Summary: Compared to freshwater resources, seawater is a cheaper and more abundant alternative. However, the presence of chloride ions in seawater affects the oxygen evolution reaction, necessitating the development of efficient anode catalysts for direct electrolytic seawater splitting. Non-noble metal materials show promising industrial application prospects due to their availability and low cost. In this study, we classify and summarize these catalyst materials based on structural analysis, mechanism research, and application conditions, providing insights into the current research status of non-noble metal electrocatalysts for seawater splitting.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Multidisciplinary
Langhuan Ye, Zhihua Xia, Quanlong Xu, Yun Yang, Xiangju Xu, Huile Jin, Shun Wang
Summary: A cubic hollow structure COF-LZU1 was fabricated using a hard template approach with water soluble NaCl as a template. The precisely prepared COF-LZU1 hollow cube exhibits an enhanced H-2 evolution rate (651 μmol h(-1) g(-1)), which is approximately 1.8 times higher than that of pristine COF-LZU1 (361 μmol h(-1) g(-1)).
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Sijian Ye, Chongling Cheng, Shun Wang, Renguo Xie, Dayang Wang
Summary: A series of carbon-doped, amorphous titania samples were prepared and their effects on anatase growth and anatase-to-rutile transition (ART) were investigated. Carbon doping promoted the ART process and lowered the temperature required, while inhibiting anatase growth. Structural criteria for the anatase phase were determined, and samples with defined anatase/rutile mixed (ARM) phases were fabricated. It was found that anatase size of approximately 25 nm and rutile fraction of about 16% yielded optimal photocatalytic performance for the degradation of gaseous acetaldehyde under UV light.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Xinxin Zhu, Peng Wang, Yihong Ding, Ying Chu, Jie Lin, Shiqiang Zhao, Huile Jin, Tianbiao Zeng
Summary: Nano-polycrystalline Sn2S3/Sn3S4/FeS/Fe7S8 sulfides anchored on graphene were synthesized by annealing SnS2 and Fe followed by homogeneously combining them with exfoliated graphite. When used as an anode for a sodium-ion battery, the reversible capacity reached 863 mA h g(-1) at 100 mA g(-1). This facile materials synthesis method may find applications in various fields.
CHEMICAL COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Tong Wang, Tingzhou Yang, Dan Luo, Michael Fowler, Aiping Yu, Zhongwei Chen
Summary: Metal-air batteries (MABs) have shown great potential as next-generation batteries due to their low cost, high safety, and environmental friendliness. Solid-state electrolytes (SSEs) can solve the challenges of volatile liquid electrolytes and protect the oxygen electrodes. However, solid-state MABs still face many challenges.
Review
Chemistry, Physical
Quanlong Xu, Zhihua Xia, Jingmei Zhang, Zhiyi Wei, Qin Guo, Huile Jin, Hua Tang, Shouzhu Li, Xuecong Pan, Zhi Su, Shun Wang
Summary: This review summarizes the recent advances in g-C3N4-based photocatalysts for CO2 reduction. The thermodynamics and dynamics of the CO2 reduction process are discussed, and the modification strategies to enhance the performance of the catalysts are detailed. The intrinsic factors affecting CO2 reduction activity and selectivity are analyzed and the challenges and prospects for future development in this field are presented.
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)