Article
Engineering, Environmental
Xi Wang, Dandan Wu, Du Yuan, Xu Wu
Summary: In this study, a novel nano-PbO2-composite electrochemical sensor was fabricated for COD detection, which showed good performance and was characterized in detail. Analytical characteristics were achieved in standard glucose solutions, with a wide linear range and a good correlation between the sensor response and the COD values.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Lei Wang, Yuehan Zhang, Xiaoxuan Sun, Yunhui Li, Junfeng Zhai, Shaojun Dong
Summary: In this study, a new FTO/TiO2/PbO2 electrode was fabricated and used as an eco-friendly electrochemical chemical oxygen demand (COD) sensor. The TiO2 interlayer was used to enhance the adhesion of PbO2 to the FTO substrate by providing a large TiO2/PbO2 interface area. The effects of applied potential, supporting electrolyte concentration, and stirring speed on the sensing performance were investigated. Under optimized conditions, linear responses to the COD of water with different sources and a linear range from 5 to 120 mg/L for sucrose as the COD source were achieved. The relative standard deviations (RSD) were less than 9% for glucose solutions with COD values of 7.5, 12.5, and 17.5 mg/L. The obtained results for real sample analysis were comparable to those measured using the conventional dichromate method, with a relative error less than 11%.
Article
Energy & Fuels
Mahdi Saadati Pour, Mohammad Reza Gilak, Mona Zamani Pedram, Gowhar Naikoo
Summary: Utilizing a simple, cheap, and fast synthesis method, CuO/Ag/RGO(S1) composite material was successfully synthesized as electrode material for supercapacitors. The S1 composite showed ideal electrochemical properties due to its porous structure. Therefore, CuO/Ag/RGO may be a viable choice for electrocatalytic and energy storage applications that require distinct electrochemical performances.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Environmental
Bo He, Lixian Song, Zixuan Zhao, Weibao Liu, Yingtang Zhou, Jiangwei Shang, Xiuwen Cheng
Summary: In this study, CuFe2O4 was attached to CuO using hydrothermal and high-temperature calcination methods. The (111) plane of CuO and (112) plane of CuFe2O4 formed a surface heterojunction, which facilitated the adsorption of PMS. The charge transfer and charge density in the CuFe2O4/CuO/PMS system were investigated using density functional theory (DFT) and transmission electron microscope (TEM). The experimental data showed that both nonradical singlet oxygen (1O2) and active radicals (center dot OH, center dot SO4-) were involved in the degradation of CIP. The degradation pathways and intermediates were proposed using Fukui index and liquid chromatography-mass spectrometry (LC-MS). The study also evaluated the bioaccumulation factor and toxic effects of intermediates using toxicity calculation software. CuFe2O4/CuO demonstrated good reusability and stability. Overall, this study provides valuable insights into the mechanisms of organic pollutants degradation using Fe-Cu catalyst and achieved a CIP removal rate of 86.67% under optimal conditions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Siraj Sultan, Hojeong Lee, Sojung Park, Minho M. Kim, Aram Yoon, Hansaem Choi, Tae-Hoon Kong, Young-Jin Koe, Hyung-Suk Oh, Zonghoon Lee, Hyungjun Kim, Wooyul Kim, Youngkook Kwon
Summary: In this study, a newly designed electrocatalyst with phase and interphase engineering achieves high selectivity for the electrochemical reduction of carbon dioxide to ethylene. The catalyst shows good catalytic stability and material durability.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Multidisciplinary Sciences
Gowhar A. Naikoo, Mustri Bano, Fareeha Arshad, Israr U. Hassan, Fatima BaOmar, Iman M. Alfagih, Murtaza M. Tambuwala
Summary: The escalating risk of diabetes globally has led to the development of cost-effective, ultrasensitive, and reliable electrochemical glucose sensors for early diagnosis. This study utilized advanced composite materials based on nanoporous CuO, CuO/Ag, and CuO/Ag/NiO for glucose detection. The CuO/Ag/NiO electrode material showed exceptional performance as a non-enzymatic glucose sensor, making it a promising candidate for early diagnosis and treatment of hyperglycemia.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Xiaodong Ye, Yangyang Jiang, Xi Chen, Benshuai Guo, Songbai Mao, Yafei Guo, Chuanwen Zhao
Summary: The preparation of nanostructured CuO catalysts for selective electrochemical CO2 reduction to CO has been reported. Template-assisted hydrothermal process was employed to regulate particle size and oxygen vacancy, resulting in CuO catalysts with higher activity and selectivity. These findings deepen the understanding of the structure-property-activity relationships of CuO catalysts and provide guidance for designing efficient and robust catalysts for electrochemical CO2 reduction to CO.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Xin Ding, Run Jiang, Jialin Wu, Minghui Xing, Zelong Qiao, Xiaofei Zeng, Shitao Wang, Dapeng Cao
Summary: This study successfully synthesized the heterostructure of nickel nitride and ceria on nickel foam, showing excellent hydrogen evolution and oxygen evolution performance. Ceria plays different roles in the hydrogen evolution and oxygen evolution processes. The study reveals the different catalytic mechanisms of ceria in boosting the hydrogen evolution and oxygen evolution activities of nickel nitride, providing useful guidance for designing high-performance bifunctional catalysts.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Analytical
Vikram Singh, Sabine Kuss
Summary: This study developed a sensitive, selective, and highly reproducible chemical sensor for the detection of antibiotic residues in environmental samples. Through optimization and characterization, the sensor demonstrated high applicability for the detection of ciprofloxacin in the pico-molar concentration range.
Article
Electrochemistry
Karuna Korgaonkar, Bruno G. Pollet, J. Seetharamappa, Shankara S. Kalanur
Summary: The present study synthesized eco-friendly single-phase tenorite (CuO) nanoparticles using an aqueous extract of Plectranthus scutellarioides for the first time, and these nanoparticles were combined with β-cyclodextrin (β-CD) to form a nanocomposite. The nanocomposite was then used to fabricate an electrochemical sensor for the investigation of the anticancer drug, phloretin (PHL). The electrochemical behavior of PHL was successfully studied on CuO@β-CD/GCE, and the sensor exhibited good reproducibility and stability.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Engineering, Electrical & Electronic
Sreedevi Paramparambath, Sadiyah Shafath, Muni Raj Maurya, John-John Cabibihan, Abdulaziz Al-Ali, Rayaz A. Malik, Kishor Kumar Sadasivuni
Summary: Dopamine is crucial for brain and body function, with its levels affecting nervous system disorders. Non-enzymatic nanocomposite CuO-MgO NC shows high sensitivity and selectivity for efficient dopamine detection.
IEEE SENSORS JOURNAL
(2021)
Article
Environmental Sciences
Sonal Rajoria, Manish Vashishtha, Vikas K. Sangal
Summary: A GO/TiO2 electrode was prepared by depositing graphene oxide (GO) on a titania plate through a simple anodization method. The morphology and structure of the TiO2 and GO/TiO2 electrodes were characterized using various techniques. The results showed that GO nanoparticles were successfully formed on the TiO2 substrate, with a thickness of approximately 300 nm. The synthesized GO/TiO2 nanotube electrode exhibited a bandgap of 3.052 eV. The effect of pH, current, and degradation time on the COD degradation and energy consumed was investigated using response surface methodology. At optimized parameters, a COD degradation of 57.61% and energy consumption of 15.00 kWh/m(3) were achieved. The electroplating effluents degradation mechanism was found to involve center dot OH radicals.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Mengdong Nie, Aixin Cui, Man Wu, Tuo Guo, Qingjie Guo
Summary: This study elucidates the correlation of metal-support interactions in CuO/LaCeOx catalysts and the promotion of catalytic activity. It is found that the introduction of La enhances the conversion of Ce4+ into Ce3+ in the catalyst and activates the formate reaction pathway of CO2 hydrogenation.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Energy & Fuels
Allan J. M. Araujo, Francisco J. A. Loureiro, Laura I. Holz, Vanessa C. D. Graca, Joao P. F. Grilo, Daniel A. Macedo, Carlos A. Paskocimas, Duncan P. Fagg
Summary: This article analyzes the electrode performance of misfit-layered calcium cobaltite as a cathode and anode for solid oxide fuel cell and solid oxide electrolysis cell, respectively, using electrochemical impedance spectroscopy. The addition of Ce0.8Gd0.2O2-delta as a composite electrode phase significantly improves the electrochemical processes and reduces the polarization resistance. Short-term stability testing demonstrates that the composite material shows stable current density and no observable microstructure delamination at 700°C.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Inorganic & Nuclear
N. Indumathi, C. Sridevi, A. Gowdhaman, R. Ramesh
Summary: Reliable energy storage technology is crucial for meeting energy demand, thus it is important to study new materials for efficient energy storage devices. Polymer-based supercapacitors, such as the chitosan-copper oxide (CS-CuO) nanocomposite, have shown great potential due to their versatile characteristics. In this study, a novel CS-CuO nanocomposite was synthesized and its electrochemical performance was evaluated.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Josep Maria Margarit-Taule, Miquel Martin-Ezquerra, Roger Escude-Pujol, Cecilia Jimenez-Jorquera, Shih-Chii Liu
Summary: This paper demonstrates that the non-idealities of FET sensors can be corrected by using a combination of FET sensor array and machine learning methods to accurately predict ion concentrations.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Laia L. Fernandez, Julio Bastos-Arrieta, Cristina Palet, Mireia Baeza
Summary: This study describes the implementation of customized graphite electrodes decorated with Hg-NPs for the electrochemical detection of Cd, Pb, and Cu. The results show improved responses towards these analytes compared to bare graphite electrodes. The analytical performance of the sensors was evaluated using square-wave anodic stripping voltammetry and showed good agreement with ICP-MS measurements.
Review
Biochemistry & Molecular Biology
Danilo Echeverri, Jahir Orozco
Summary: Glycan-based electrochemical biosensors are emerging as analytical tools for diagnosing infectious diseases and detecting cancer biomarkers. Nanostructure-decorated platforms enhance the analytical performance, while glycans anchored to electrode platforms exhibit high specificity for biomarker detection. This synergy allows for ultrasensitive detection of molecular targets of clinical interest.
Review
Chemistry, Analytical
Giti Paimard, Ehsan Ghasali, Mireia Baeza
Summary: As electrochemical measuring instruments, screen-printed electrodes (SPEs) are simple, inexpensive, and rapid to analyze substances with high reproducibility, sensitivity, and accuracy. The latest research has focused on expanding SPE electrochemical biosensors, such as aptasensors, immunosensors, DNA sensors, and enzymatic biosensors, to identify, distinguish, and quantify various biocompounds. This review discusses the use of different nanomaterials in manufacturing on-screen electrode methods and strategies for stable diagnosis of biorecognition elements in the future.
Article
Biotechnology & Applied Microbiology
Zainab Ul, Pilar Sanchez-Pena, Mireia Baeza, Mira Sulonen, David Gabriel, Juan Antonio Baeza, Albert Guisasola
Summary: This study evaluates the performance of different anode materials in bioelectrochemical systems (BES) and finds that carbon brush (CB) and high-active-area carbon felt (CF3) electrodes have the best overall performance, allowing for shorter start-up time and improved performance.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Analytical
Franc Pare, Aida Visus, Gemma Gabriel, Mireia Baeza
Summary: This work successfully fabricated a nitrate potentiometric sensor by utilizing the stability, electrical conductivity, and versatility of graphite-based inks. The hydrophobicity of graphite was also exploited to design an ion-selective electrode, preventing the formation of a water layer. The use of printing technologies allowed for easy miniaturization and lower fabrication costs. The printed sensor, composed of a graphite working electrode and a Ag/AgCl reference electrode, showed excellent sensitivity, stability, and selectivity, making it a great alternative for environmental and industrial applications.
Article
Environmental Sciences
Franc Pare, Rebeca Castro, David Gabriel, Xavier Guimera, Gemma Gabriel, Mireia Baeza
Summary: Concern over pollution has led to an increase in wastewater treatment systems, and the need for constant monitorization. Electrochemical sensors, such as a 2 mm2 graphite (Gr) electrode modified with single-walled carbon nanotubes (SWCNTs) and polymeric dispersions, are presented as an efficient and reliable method for H2S detection. This microsensor demonstrates high sensitivity, a wide pH range, and the ability to operate in complex matrices.
Review
Engineering, Environmental
Mariella Belen Galeano, Mira Sulonen, Zainab Ul, Mireia Baeza, Juan Antonio Baeza, Albert Guisasola
Summary: Due to the anticipated rise in demand for ammonia, there has been increased research on viable methods for its recovery, with a focus on reducing the high energy demand associated with traditional ammonia production. Bioelectrochemical systems (BESs) offer a promising alternative for ammonia recovery, with lower energy demand compared to other methods at the lab-scale. This paper explores the fundamentals and opportunities of bioelectrochemical ammonia recovery in various BES devices and discusses the challenges in scaling up for industrial adoption.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Biomedical
Shu Wang, Meritxell Rovira, Silvia Demuru, Celine Lafaye, Jaemin Kim, Brince Paul Kunnel, Cyril Besson, Cesar Fernandez-Sanchez, Francisco Serra-Graells, Josep Maria Margarit-Taule, Joan Aymerich, Javier Cuenca, Ilya Kiselev, Vincent Gremeaux, Mathieu Saubade, Cecilia Jimenez-Jorquera, Danick Briand, Shih-Chii Liu
Summary: Biomarkers in sweat can be used to evaluate the physiological conditions of athletes. This study presents a wearable sweat biomonitoring patch that can record and predict physiological biomarkers in real-time, showing promising applications for athletes performing endurance exercise.
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
(2023)
Article
Chemistry, Analytical
Meritxell Rovira, Celine Lafaye, Shu Wang, Cesar Fernandez-Sanchez, Mathieu Saubade, Shih-Chii Liu, Cecilia Jimenez-Jorquera
Summary: Body thermoregulation during exercise induces sweating, which causes the loss of water, electrolytes, and other compounds. The use of sweat for bioanalytical purposes has become widespread due to its easy accessibility and noninvasive collection. This study focuses on assessing the potential of ion-sensitive field-effect transistors (ISFETs) as sensors for analyzing sodium levels in sweat. The results show that the ISFET sensors have reproducible sensitivity, high repeatability, and can potentially be used for continuous monitoring of sodium changes in sweat during exercise.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Multidisciplinary
Manuel Gutierrez-Capitan, Ana Sanchis, Estela O. Carvalho, Antonio Baldi, Lluisa Vilaplana, Vanessa F. Cardoso, Alvaro Calleja, Mingxing Wei, Roberto de la Rica, Javier Hoyo, Arnau Bassegoda, Tzanko Tzanov, Maria-Pilar Marco, Senentxu Lanceros-Mendez, Cesar Fernandez-Sanchez
Summary: This study demonstrates a unique and easily deployable multiplex device that can simultaneously measure interleukin-8, tumor necrosis factor-α, and myeloperoxidase biomarkers in sputum, aiming to facilitate the timely detection of acute exacerbations of chronic obstructive pulmonary disease.
Proceedings Paper
Computer Science, Artificial Intelligence
Javier Cuenca-Michans, Joan Aymerich, Lluis Teres, Cecilia Jimenez-Jorquera, Francisco Serra-Graells, Josep Maria Margarit-Taule
Summary: This paper presents a neuromorphic CMOS Delta-Sigma modulator for the robust and energy-efficient readout of amperometric electrochemical sensors. The circuit makes use of an adaptive integrate-and-fire scheme to deliver asynchronous A/D conversion and attenuation of background currents with minimal power requirements. The modulator reuses the dynamic characteristics of the electrode-electrolyte interface for quantization noise shaping, and it offers potentiostatic control of the voltage difference between working and reference electrodes of a three-electrode electrochemical cell.
2023 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, ISCAS
(2023)
Proceedings Paper
Computer Science, Artificial Intelligence
Shu Wang, Meritxell Rovira, Yuhuang Hu, Cecilia Jimenez-Jorquera, Shih-Chii Liu
Summary: This study proposes an end-to-end prediction neural network that can predict ionic concentration without the need for individual sensor calibration. The network is trained using a simulated dataset that incorporates the non-idealities of real ISFET sensors. It also provides a confidence interval for the prediction, which can be used to assess the quality of the prediction.
2023 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, ISCAS
(2023)
Article
Biochemistry & Molecular Biology
Anna Avino, Carlos Cuestas-Ayllon, Manuel Gutierrez-Capitan, Lluisa Vilaplana, Valeria Grazu, Veronique Noe, Eva Balada, Antonio Baldi, Alex J. Felix, Eva Aubets, Simonas Valiuska, Arnau Dominguez, Raimundo Gargallo, Ramon Eritja, M-Pilar Marco, Cesar Fernandez-Sanchez, Jesus Martinez de la Fuente, Carlos J. Ciudad
Summary: An innovative analytical approach based on sandwich oligonucleotide hybridization has been developed, which can be adapted to multiple biosensing devices for the rapid detection of pathogens.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Analytical
Yujia Ying, Huilin Li
Summary: Enzymes play a crucial role as biological catalysts in accelerating biochemical reactions in living organisms. This study proposes a convenient method for monitoring enzymatic catalytic processes using native top-down mass spectrometry. By exploring the heterogeneity of the chymotrypsin sample and using tandem mass spectrometry, the researchers were able to monitor covalent and noncovalent enzymatic complexes, substrates, and products during catalysis. The results demonstrate that this method has the potential to be a promising tool for characterizing biocatalysts.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Kang Yang, Shuaibo Shi, Jinyu Wu, Shaolong Han, Shengdi Tai, Shishen Zhang, Kun Zhang
Summary: H2O and D2O are important analogues closely related to various industries and monitoring fields. This study successfully distinguishes and detects H2O and D2O by designing a novel eu(III)-macrocycle with dual emitters, Eu-2a, and conducting fluorescence titration experiments.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Julia Kuligowski, Alvaro Perez-Rubio, Marta Moreno-Torres, Polina Soluyanova, Judith Perez-Rojas, Ivan Rienda, David Perez-Guaita, Eugenia Pareja, Ramon Trullenque-Juan, Jose Castell, Marcha Verheijen, Florian Caiment, Ramiro Jover, Guillermo Quintas
Summary: This study introduces a novel variable selection approach called cluster PLS (c-PLS) to assess the joint impact of variable groups selected based on biological characteristics on the predictive performance of a multivariate model. The usefulness of c-PLS is shown using miRNomic and metabolomic datasets obtained from the analysis of liver tissue biopsies.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Meixue Lai, Lijie Zhong, Siyi Liu, Yitian Tang, Tingting Han, Huali Deng, Yu Bao, Yingming Ma, Wei Wang, Li Niu, Shiyu Gan
Summary: This study presents a method for constructing wearable sweat electrolyte sensors using carbon fiber-based solid-contact ion-selective electrodes (SC-ISEs). By using carbon fibers extracted from commercial cloth as electrode material, the cost and reproducibility issues of flexible SC-ISEs were addressed. The results showed that the carbon fiber-based SC-ISEs exhibited reversible voltammetric and stable impedance performances, and had high reproducibility of standard potentials between normal and bending states.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Yang, Ying Liu, Min Deng, Peipei Wang, Dan Cheng, Songjiao Li, Longwei He
Summary: A near-infrared fluorescent probe has been developed to accurately measure the levels of peroxynitrite (ONOO-) in the endoplasmic reticulum (ER) in acute lung injury (ALI). The probe demonstrated rapid response, high selectivity, good sensitivity, and enhanced fluorescence intensity in response to ONOO-. It was successfully used to detect changes in ONOO- levels and showed significant increases in an ALI cell model and an ALI mouse model.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yanping Wang, Yuemei Chen, Kejun Li, Jinrong Zhou, Xin Yuan, Mei Zhang, Ke Huang
Summary: In this work, a portable analytical system based on point discharge chemical vapor generation atomic emission spectrometry (PD-CVG-AES) coupling with gold filament enrichment was designed. The highly sensitive analysis of Hg2+ indirectly realized the detection of ascorbic acid (AA). The measurement is based on the fact that Ag+ can decrease the concentration of Hg2+ by forming Ag-Hg amalgam in the presence of the reductant SnCl2, while AA can pre-reduce Ag+ to Ag0, leading to the generation of silver nanoparticles (Ag NPs). The developed novel analytical strategy broadens the application of microplasma-based AES and offers a higher level of sensitivity compared to current AA detection techniques.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yundi Huang, Bo Song, Kaiwen Chen, Deshu Kong, Jingli Yuan
Summary: This study developed two lysosome-targetable background-free TGL probes for efficient and accurate detection of 1O2, which can be used for monitoring endogenous 1O2 concentrations in lysosomes and discriminating variability induced by different photosensitizers. Furthermore, a smart luminescent sensor film was successfully prepared for on-site 1O2 production detection during PDT processes, offering a promising clinical monitoring tool for skin diseases.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Wei Lang, Jia-Mei Qin, Qian-Yong Cao
Summary: A novel polymer-based probe P1 was successfully synthesized for fluorescently ratiometric sensing of H2S with high selectivity and sensitivity. A smartphone sensing platform was constructed to conduct visual quantitative detection of H2S. P1 can be employed in evaluating the level fluctuations of H2S in living cells, testing water samples/wine samples, and monitoring food freshness.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yuanyuan Qin, Shuda Liu, Shuyun Meng, Dong Liu, Tianyan You
Summary: The study developed a split aptamer-based sandwich-type ratiometric biosensor for the detection of 17 beta-estradiol (E2) using photoelectrochemical and electrochemical assays. The biosensor utilized split aptamer fragments to recognize E2 and trigger a hybridization chain reaction, resulting in the production of double-stranded DNA labeled with CdTe quantum dots. This DNA complex was able to sensitize CdTe quantum dots and generate response signals for E2 detection. The developed biosensor demonstrated high sensitivity and accuracy with two linear ranges and low detection limits.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Siriwan Teepoo, Jongjit Jantra, Khaunnapa Panapong, David Taiwo Ajayi
Summary: A novel immunochromatographic assay based on hyperbranched Au plasmonic blackbodies with a smartphone readout was developed for rapid and sensitive detection of leucomalachite green residues in fish and shrimp products.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Andrea L. Larraga-Urdaz, Borja Moreira-Alvarez, Jorge Ruiz Encinar, Jose M. Costa-Fernandez, Maria Luisa Fernandez-Sanchez
Summary: A major challenge in the 21st century is the development of point-of-care diagnostic tools. In this study, a highly sensitive and simple bioassay using AuNPs and MNAzymes was developed for rapid detection and quantification of miRNA-4739. The proposed strategy shows potential for breast cancer diagnosis.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Xiaohan Zhao, Anyu Wang, Lingzi Zhai, Jiuhe Gao, Sizhe Lyu, Yingshan Jiang, Tian Zhong, Ying Xiao, Xi Yu
Summary: A novel method using polystyrene-coated magnetic nanoparticles for extracting monohydroxy polycyclic aromatic hydrocarbons from urine samples was investigated. The proposed method is simple, sensitive, and efficient, with desirable sensitivity for analyzing low-abundance metabolites in large volumes of complex urine samples.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Quan, Yuqing Zeng, Wenke Zhang, Fengfeng Li, Mengjiao Li, Zhihe Qing, Linlin Wu
Summary: In this study, a visual and reusable biosensor was developed for detecting substrates that are closely associated with human physiological health. The immobilized oxidase showed higher stability and sensitivity under harsh conditions, enabling reliable detection of substrates in complex fluids.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Dongjuan Wang, Xiuqian Ding, Jinling Xie, Juan Wang, Guanhao Li, Xin Zhou
Summary: In this study, a three-in-one sensor was developed for real-time detection of biogenic amines (BAs) with high sensitivity and selectivity. The sensor showed multimodal responses and could be used to fabricate portable devices for on-site non-destructive assessment of food spoilage indicators.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Jinting Meng, Zihao Xu, Shasha Zheng, Hongqun Yang, Tianfu Wang, Hong Wang, Yingwei Zhang
Summary: This study demonstrates the development of a cascade signal amplification system using a multi-pedal DNA walker and strand displacement reactions for the electrochemical detection of miRNA-155. The biosensor exhibited high sensitivity, selectivity, and the potential for clinical applications.
ANALYTICA CHIMICA ACTA
(2024)
