Article
Chemistry, Analytical
Mingjia Bai, Mei Chen, Xu Li, Qingji Wang
Summary: A highly selective and responsive NO2 gas sensor based on ZnO/SnO2 heterojunction was fabricated using chemical vapor deposition. The sensor exhibited high response values in a wide range of NO2 concentrations, with excellent selectivity and repeatability.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Nanoscience & Nanotechnology
Chiu-Yen Wang, Yu-Kai Wu, Liang-Feng Tsai, Hou-Kuan Lee, Ya-Chu Hsu
Summary: The SnS2/SnO2 heterostructure and SnS2 nanoflakes were synthesized using a one-step SnO2-templated chemical vapor deposition method. The photocatalytic activity for MB degradation under visible light was significantly enhanced by the SnO2/SnS2 heterostructure and oxide vacancies of nanoflakes, with O-2(-) and OH identified as the main active species in the photodegradation reaction.
Article
Chemistry, Analytical
Peresi Majura Bulemo, Dong-Ha Kim, Il-Doo Kim
Summary: Novel synthesis techniques were employed to fabricate SiO2@SnO2 core-shell microbelts and hollow SnO2 microbelts, which were sensitized with platinum nanoparticles to enhance their acetone detection capability. The sensitized SnO2 microbelts showed significantly higher response to 2 ppm acetone and faster response time compared to pristine SnO2 microbelts. The sensor based on sensitized SnO2 microbelts also exhibited promising stability and repeatability toward acetone exposure in a humid environment.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Lifang He, Jingjie Hu, Qiming Yuan, Zhangcheng Xia, Ling Jin, Hongliang Gao, Liyuan Fan, Xiangfeng Chu, Fanli Meng
Summary: Constructing porous and heterojunction structures within the semiconductor oxide composites is an ideal strategy for developing gas sensing materials, but it is difficult due to grain boundaries. In this study, ZnFe2O4/SnO2 (ZFO/SNO) composite with porous core-shell spheres structure was successfully synthesized by combining pre-synthesized SnO2 nanospheres with ZnFe2O4. The porous ZFO/SNO composite with a Zn to Sn ratio of 1:0.7 showed excellent acetone sensing performance, attributed to its rich heterojunctions, porous structure, and small nanoparticle size.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Yuting Wang, Tianqi Wang, Wenyuan Pei, Feng Li, Ying Yang, Hui Yu, Xiangting Dong
Summary: This study presents a new strategy to construct TiO2 @POMs@ alpha-Fe2O3 one-dimensional tandem heterojunctions materials through one-step coaxial electrospinning. Three series of TiO2 @POMs@ alpha-Fe2O3 core-middle-shell nanoribbons with different Keggin-type POMs were synthesized. Gas sensing performances of the nanoribbons were investigated, showing significantly improved sensitivity and selectivity to acetone. The enhancement can be attributed to the addition of POMs electron acceptors, the construction of tandem heterojunctions, and the one-dimensional nano-structure.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Polymer Science
Ting-Han Lin, Yin-Hsuan Chang, Ting-Hung Hsieh, Yu-Ching Huang, Ming-Chung Wu
Summary: This study investigates the use of SnO2/WO3 nanoparticles in a sensing fiber for acetone vapor detection. The fabrication of the fiber involves UV/ozone treatment to induce structural deformation and significant changes in extinction, resulting in improved detection sensitivity and response time for acetone. These findings contribute to the development of sensitive and selective VOC sensing devices.
Article
Engineering, Electrical & Electronic
Prakhar Sharma, Pooja P. Sarngan, Agasthiyaraj Lakshmanan, Debabrata Sarkar
Summary: This study focused on optimizing the synthesis method of g-C3N4 through changing the polymerization temperature, showing that full formation of graphitic carbon nitride requires a temperature above 550 degrees C. Precursors and heating rate were found to have a significant influence on the photocatalytic activities, with higher activities achieved at a lower heating rate.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Analytical
Weiwei Guo, Lingli Huang, Jie Zhang, Youzhou He, Wen Zeng
Summary: The study utilized calcining and hydrothermal method to grow highly ordered Ni-doped SnO2 nanosheets onto g-C3N4 lamina, resulting in a Ni-SnO2/g-C3N4 composite with high sensitivity and good stability for detecting acetone, showing potential for diabetes diagnosis.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Xiaoguang San, Yue Zhang, Lei Zhang, Guosheng Wang, Dan Meng, Jia Cui, Quan Jin
Summary: This study successfully designed and synthesized three-dimensional indium oxide flower-like structures functionalized with reduced graphene oxide (rGO). The rGO-functionalized structures demonstrated improved acetone-sensing performance at relatively low temperatures and showed good reproducibility, low detection limit, fast response and recovery rates, and long-term stability.
Article
Chemistry, Analytical
Jun Min Suh, Tae Hyung Lee, Kootak Hong, Young Geun Song, Sung Hwan Cho, Chong-Yun Kang, Young-Seok Shim, Donghwa Lee, Ki Chang Kwon, Ho Won Jang
Summary: The heterostructure between two-dimensional metal sulfides and metal oxides is an effective strategy to enhance the gas sensing performance. This study focuses on enhancing gas sensing response under highly humid conditions by using 2D tin sulfides-SnO2 heterostructures in the form of vertically aligned 1D nanostructures. The results show superior gas response and recovery to NO2 under high humidity, as well as diverse selectivity towards various gases using noble metal catalyst decoration.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Environmental
Wei Wang, Nan Zhang, Qilin Wang, Xin Li, Feng Li, Shengping Ruan
Summary: By modifying ZnFe2O4 microspheres with two-dimensional graphitic carbon nitride (g-C3N4), the gas sensing performance of the sensor can be improved, resulting in higher response value, better selectivity, and lower detection limit.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Energy & Fuels
Xianglin Ren, Yafei Liu, Hongyan Sun, Zheyu Zhang, Chunwang Luo, Yue Wang, Chunju Xu, Huiyu Chen
Summary: The flower-like SnS2/SnO2 composite and SnS2 nanosheets were synthesized and showed typical battery-like electrochemical response. SnS2/SnO2 nanoflowers exhibited a higher energy density compared to other materials in a hybrid supercapacitor.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Xiaoshi Hou, Lei Wang, Zhihu Pan, Zhiwu Chen, Xiaohong Ji
Summary: MoS2, with its layered structure and adjustable energy bandgap, has attracted a lot of attention for its potential applications in photocatalysis and photodetection. However, the fast recombination of photoexcited carriers in MoS2 limits its performance in these areas. In this study, MoS2/SnO2 heterostructured composites were synthesized using a simple sulfuration process. The formation of the heterojunction not only enhances the separation rate of photogenerated carriers and the photocurrent response, but also improves the photocatalytic activity under visible light illumination. This work demonstrates the potential of sulfuration process in expanding the application range of MoS2/metal-oxide heterojunctions.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Alina Yarmolenko, Bibhudatta Malik, Efrat Shawat Avraham, Gilbert Daniel Nessim
Summary: A binder-free, copper-based, self-supported electrode consisting of Cu3P and Cu-O was developed for the electro-oxidation of methanol. This electrode exhibited outstanding activity and stability, providing an important breakthrough for the commercialization of direct methanol fuel cells.
Article
Materials Science, Multidisciplinary
Valentine Saasa, Bonex Mwakikunga
Summary: In this paper, the performance of acetone sensors was improved by enhancing the surface activity, gas diffusion, and decreasing the grain size. n-type semiconducting sensors and their cobalt doped-counterparts were synthesized by a hydrothermal method. The SnO2-Co sensor showed a high sensitivity to 5 ppm acetone at an operating temperature of 100 degrees C and exhibited high selectivity. The results suggest that SnO2-Co architectures can be used for detecting low concentrations of acetone and have potential for early diabetes diagnosis.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Multidisciplinary
Chao Zhou, Min Hong, Nantao Hu, Jianhua Yang, Wenhuan Zhu, Lingwei Kong, Ming Li
Summary: By modulating the electronic state through bi-metallic coupling, the performance of lithium-sulfur batteries can be improved with enhanced capacity and cycle stability. Nanoparticles of bi-metallic phosphides anchored on N, P-co-doped porous carbons were synthesized using a laser-induced micro-explosion strategy. This study demonstrates the effectiveness of bi-metallic coupling-induced electronic-state modulation for developing high-performance Li-S batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Tian Tian, Huan Yin, Luoxi Zhang, Mingkui Zhu, Defu Ma, Feng Shao, Nantao Hu, Zhi Yang, Yafei Zhang, Yanjie Su
Summary: This study investigates the interfacial charge transfer between gas molecules and SWCNTs using the Raman shift of the 2D peak in SWCNTs. An exponential relationship between the 2D peak position and NO2 concentration has been established, providing a simple method to evaluate charge transfer and gas molecule adsorption state.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Peiyao Wang, Feng Shao, Bin Li, Yanjie Su, Zhi Yang, Nantao Hu, Yafei Zhang
Summary: In order to increase the specific capacitance of supercapacitors, polyaniline (PANI) has been used as an additive electrode material. In this study, a molecular-level uniform reduced graphene oxide/PANI (rGO/PANI) composite film was synthesized through self-assembly and specific thermal reduction, which showed great potential in flexible supercapacitors with high areal capacitance. The performance of the rGO/PANI film, such as specific areal capacitance and cycling stability, was significantly enhanced compared to the pure rGO electrode.
Article
Chemistry, Multidisciplinary
Wenjing Quan, Jia Shi, Hanyu Luo, Chao Fan, Wen Lv, Xinwei Chen, Min Zeng, Jianhua Yang, Nantao Hu, Yanjie Su, Hao Wei, Zhi Yang
Summary: A novel flexible paper-based gas sensor was designed, which integrated the Ti3C2Tx-MXene nonmetallic electrode and Ti3C2Tx/WS2 gas sensing film to form Ohmic contact and Schottky heterojunction in a single sensing channel. The sensor exhibited high conductivity, effective charge transfer, and abundant active sites for gas sensing, and showed a response rate of 15.2% to 1 ppm NO2 gas at room temperature, with a detection limit of 11.0 ppb NO2 gas.
Article
Engineering, Environmental
Hewei Yuan, Yaozhong Zhang, Yanjie Su, Nantao Hu, Jianhua Yang, Min Zeng, Zhi Yang, Yafei Zhang
Summary: This study introduces a novel Type II heterojunction consisting of BiVO4 thin film and diamond-like carbon (DLC) to the PEC system, which significantly enhances the PEC water-splitting activity. Compared to the pure BiVO4, the BiVO4/DLC heterojunction exhibits increased photocurrent density and improved stability. The enhancement in PEC performance is attributed to the Type II heterojunction photoanodes that promote carrier mobility and reduce the recombination rate of electron-hole pairs. Furthermore, the sp2 carbon phase in DLC acts as a conductive channel, while the sp3 carbon phase provides stable support and passivation effect, leading to an enhancement in both PEC water splitting performance and long-time stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Suning Liang, Zhi Yang, Xianjun Shao, Yiming Zheng, Qiang Wang, Zhengyong Huang
Summary: This study used molecular dynamics and quantum mechanics theory to investigate the adsorption kinetics and mechanism of graphene-based materials on polar small molecules in vegetable oil. The results showed that these materials effectively adsorb the polar small molecules, and the modification with oxygen-containing groups improves their adsorption ability by converting physical adsorption to chemical adsorption. This study provides a theoretical basis for designing and preparing graphene materials with high adsorption properties.
Article
Chemistry, Multidisciplinary
Xiyu Chen, Min Zeng, Jianhua Yang, Nantao Hu, Xiaoyong Duan, Wei Cai, Yanjie Su, Zhi Yang
Summary: A 2D bimetallic phthalocyanine-based COF (COF-CuNiPc) was reported as a chemiresistive gas sensor with high gas-sensing performance for nitrogen dioxide (NO2). COF-CuNiPc with an asymmetric synergistic effect achieved a fast adsorption/desorption process to NO2. The bimetallic structure of COF-CuNiPc provided a proper band gap and the CuNiPc heterometallic active site accelerated the adsorption/desorption processes. The concept of a synergistic effect enabled by bimetallic phthalocyanines in this work can provide an innovative direction for designing high-performance chemiresistive gas sensors.
Article
Materials Science, Multidisciplinary
Yongwei Zhang, Jianhua Yang, Chunpeng Jiang, Chao Fan, Wen Lv, Xiyu Chen, Min Zeng, Nantao Hu, Tao Wang, Zhi Yang
Summary: A highly sensitive, flexible capacitive pressure sensor based on a fabric-mould strategy is introduced. Custom square-conical arrays with Au electrodes can feasibly be fabricated at scale by peeling them off the fabric mould. The pressure sensor exhibits high sensitivity, fast response/recovery time, and ultralow detection limit, showing great potential for various applications and accurately identifying human physiological information and the spatial distribution and shape of objects.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Huan Yin, Tian Tian, Ruxuan Zhang, Luoxi Zhang, Mingkui Zhu, Tianhao Zhang, Zhi Yang, Nantao Hu, Yafei Zhang, Yanjie Su
Summary: All-carbon nano-heterostructure photodetectors based on different carbon allotropes exhibit excellent photoelectric performance. However, the performance is limited by the interfacial charge transfer and large dark current of graphene. In this study, asymmetric all-carbon nano-heterostructures with C-60/graphene/single-walled carbon nanotube (SWCNT) heterojunctions were designed and demonstrated to have excellent photoelectric response in the visible to NIR range, high responsivity, ultrahigh detectivity, and fast response time. The interfacial charge transfer mechanism was also investigated. This work provides insights into interfacial charge transfer in carbon-based heterostructures and offers a strategy for designing and fabricating high-performance all-carbon nano-heterostructure photodetectors.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Huan Yin, Ruxuan Zhang, Tian Tian, Zhi Yang, Nantao Hu, Yafei Zhang, Yanjie Su
Summary: The interfacial charge transfer between single-walled carbon nanotubes (SWCNTs) and graphene is systematically investigated under different external conditions, including bias voltage, temperature, and atmosphere. It is found that electrons are transferred from SWCNTs to graphene when the applied voltage deviates from the neutral point voltage of -4 V. The built-in electric field induces the transfer of electrons from SWCNTs to graphene under various atmospheric and temperature conditions. This study provides important insights into the interfacial charge transfer between SWCNTs and graphene and offers guidance for designing high-performance all-carbon vdW heterostructure nanodevices.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Jaafar Abdul-Aziz Mehrez, Xiyu Chen, Min Zeng, Jianhua Yang, Nantao Hu, Tao Wang, Ruili Liu, Lin Xu, Yorexis Gonzalez-Alfaro, Zhi Yang
Summary: This study analyzes the structural and electronic parameters of a MoTe2/InN vdW heterostructure using density functional theory (DFT), finding that it has a higher adsorption energy and is well suited for NO2 detection. However, there are limitations in detecting NH3 and SO2.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Jaafar Abdul-Aziz Mehrez, Xiyu Chen, Min Zeng, Jianhua Yang, Nantao Hu, Tao Wang, Ruili Liu, Lin Xu, Yorexis Gonzalez-Alfaro, Zhi Yang
Summary: This study employs density functional theory to analyze the structural and electronic parameters of a MoTe2/InN vdW heterostructure. The findings indicate that the heterostructure has a strong adsorption capability for NH3, NO2, and SO2, making it well suited for NO2 detection. However, there are limitations in detecting NH3 and SO2 reliably.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(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)
