Article
Engineering, Chemical
Jeremias Martinez, Maria Antonieta Zuniga-Hinojosa, Richard Steve Ruiz-Martinez
Summary: This study analyzes the effects of temperature, pressure, and H-2/HC ratio on catalytic reforming reactions and the production of high-octane gasoline from the perspective of thermodynamic equilibrium. The optimal conditions for the process were evaluated using the Gibbs free energy minimization method.
Article
Environmental Sciences
Jariya Kayee, Sujaree Bureekul, Penjai Sompongchaiyakul, Xianfeng Wang, Reshmi Das
Summary: After Thailand banned leaded gasoline in 1994, the atmospheric sources of lead have shifted from less radiogenic leaded gasoline exhaust and Chinese ore processing to more radiogenic unleaded gasoline and diesel exhaust, as well as coal combustion emissions.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Obed Majeed Ali, Omar Rafae Alomar, Omar Mohammed Ali, Naseer T. Alwan, Salam J. Yaqoob, Anand Nayyar, Sameh Askar, Mohamed Abouhawwash
Summary: Fuel quality is crucial for the use of alternative fuels in internal combustion engines. This study found that using naphtha and fusel oil as additives can enhance the performance and emissions of low octane gasoline, with the fuel containing 10% naphtha showing the best engine performance at increasing speeds.
Article
Energy & Fuels
Vahid Abdolkarimi, Ataallah Sari, Saeid Shokri
Summary: In this study, a data-driven adaptive model is developed to predict the variables indicating gasoline quality in the light naphtha isomerization process. The model, called DLS-SVR, combines a double-level similarity criterion and support vector regression. It takes into account influential operating variables and the properties of benzene, and considers the research octane number, benzene volume percentage, and Reid vapor pressure as indicators of gasoline quality. Experimental results show that the DLS-SVR model outperforms other generalized models in predicting gasoline quality variables. The model is also used to determine the optimal conditions for improved gasoline quality, resulting in a significant increase in research octane number and a minimum benzene volume percentage.
Review
Environmental Sciences
Mayara de Almeida Ribeiro Carvalho, Wander Gustavo Botero, Luciana Camargo de Oliveira
Summary: This study used a systematic literature review to identify sources of potentially toxic elements (PTEs) in the aquatic environment. The analysis revealed both natural and anthropogenic sources, such as mining, agriculture, industries, and domestic effluents. The study also highlighted specific locations where environmental remediation studies should be conducted to prevent and address PTE pollution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Jovana Jagodic, Sladan Pavlovic, Slavica Borkovic-Mitic, Milan Perovic, Zeljko Mikovic, Sladana Durdic, Dragan Manojlovic, Aleksandar Stojsavljevic
Summary: This study investigated the levels of toxic and essential trace metals in the umbilical cord sera, maternal sera, and placental tissue samples of healthy pregnant women. It was found that all trace metals can cross the placental barrier and reach the fetus. Statistical analysis revealed significant differences in levels of toxic and essential trace metals between different clinical samples. Principal component analysis highlighted the most influential trace metals in distinguishing placenta from maternal and umbilical cord serum samples. Overall, these findings contribute to our understanding of transplacental transfer of trace metals and metal exposure in healthy pregnant women and their fetuses.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Environmental Sciences
Mohammad Mahbub Kabir, Samia Akter, Farah Tasneem Ahmed, Mohammad Mohinuzzaman, Md Didar-ul-Alam, Khan M. G. Mostofa, Abu Reza Md Towfiqul Islam, Nahin Mostofa Niloy
Summary: Salinity in coastal Bangladesh's drinking water poses a severe crisis in socio-economic, environmental, and human health safety. The study analyzed tube well water samples for trace metals and found that salinity-induced FDOM influences water quality and health risks, especially for children.
Article
Environmental Sciences
Matteo Pallottini, Enzo Goretti, Chiara Argenti, Gianandrea La Porta, Laura Tositti, Enrico Dinelli, Beatrice Moroni, Chiara Petroselli, Paola Gravina, Roberta Selvaggi, David Cappelletti
Summary: Anthropogenic trace metal contamination has increased and caused hazardous consequences. The Terni basin valley in Central Italy is heavily polluted by industrial activities, but its orography structure limits air pollution dispersal. This study found higher levels of metal contamination in butterfly tissues at sites with high soil contamination, indicating a correlation between soil and tissue contamination. Monitoring metal concentrations in butterflies can be a good indicator of environmental quality in areas affected by specific anthropogenic pollution sources.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Vanessa Almeida Moreira, Angelo Cezar Borges de Carvalho, Luiz Francisco Fontana, Edison Dausacker Bidone, Elisamara Sabadini-Santos
Summary: The study applied the Quality Ratio (QR) index in Sepetiba Bay to assess the ecological risk of sediments, integrating geochemical and microbiological parameters of in situ microbial community, and determining the concentrations of pollutants and enzymatic biomarkers for energy production. The QR was found to be an effective and efficient tool for segregating stations into internal and external sectors based on microbial and geochemical factors, demonstrating its accessibility and utility in ecological risk assessment.
MARINE POLLUTION BULLETIN
(2021)
Review
Environmental Sciences
Mohammad A. Al-Ghouti, Mohammad Y. Ashfaq, Mariam Khan, Zulfa Al Disi, Dana A. Da'na, Rouzan Shoshaa
Summary: Water and wastewater can be contaminated with trace elements from industrial activities, posing negative impacts on human health and the environment. Adsorption and adsorptive filtration techniques have gained attention due to their cost-effectiveness and high efficiency. This review provides an overview of conventional and advanced adsorbents, biosorbents, and adsorptive membranes for trace element removal from water, discussing their sources, impact on human health, adsorption capacities, and isotherm modeling.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Applied
Anissa Zergui, Sofiane Boudalia, Marlie Landy Joseph
Summary: During recent decades, the adverse effects of heavy metal contaminants in commonly consumed foods such as honey and poultry eggs have become a threat to human health. This study analyzed the levels of heavy metals in honey and eggs collected from different regions in Algeria. The results showed high concentrations of Pb, Cd, and As in both honey and eggs, with infants in polluted areas being at a higher risk due to their consumption. Future research should explore the correlation between metal levels in honey and eggs with feed, water, and soil, in order to develop effective management measures and policies.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Environmental Sciences
Donato Giovannelli
Summary: Biogeochemistry is influenced by a small group of microbial-encoded proteins with redox-sensitive transition metals. Understanding the impact of metal distribution and availability on microbial diversity will provide crucial insights into the coevolution of Earth and life.
NATURE REVIEWS EARTH & ENVIRONMENT
(2023)
Article
Energy & Fuels
Sujit Mondal, Kalicharan Chattopadhayay, Ravindra Kumar, Jayaraj Christopher, Gurpreet S. Kapur
Summary: A rapid method based on quantitative H-1 NMR spectroscopy has been developed for accurate estimation of PONA in extremely light to middle cut naphtha, suitable for monitoring pilot plant processes. The method combines GMWt-based estimation with new olefin estimation techniques to provide comprehensive analysis of the liquid streams from refineries. Results were compared with DHA and ASTM D6839 methods.
Article
Energy & Fuels
Samet Celebi, Tolga Kocakulak, Usame Demir, Gokhan Ergen, Emre Yilmaz
Summary: The effects of using naphtha-diesel and naphtha-gasoline fuel mixtures on HCCI engine performance and emission values were investigated using experimental and statistical methods. The Response Surface Method (RSM) was employed, and 52 experiments were conducted under the same conditions. The results showed that gasoline fuel performed better than diesel after optimization, with an optimum gasoline ratio of 0.297%, injection duration of 11.97 ms, and engine speed of 1325.21 rpm. The corresponding values for effective torque, BSFC, CO, HC, and NO emissions were determined.
Article
Energy & Fuels
Yuhao Zhang, Mengmeng Liu, Liang Zhao, Suxin Liu, Jinsen Gao, Chunming Xu, Mingzhi Ma, Qingfei Meng
Summary: The contradiction between desulfurization and loss of octane number in fluid catalytic cracking (FCC) naphtha is a long-term problem in clean gasoline production. A novel process for ultra-clean gasoline production that uses a unique separation approach was introduced in this study, addressing the issue by coupling distillation and solvent extraction. Ternary liquid-liquid equilibrium (LLE) was utilized to investigate the interaction of olefin, sulfide, and sulfolane solvent, and a simulation method was established by Aspen Plus to analyze the components of FCC naphtha and meet commercial gasoline requirements worldwide.
Article
Chemistry, Analytical
Railson de Oliveira Ramos, David Douglas de Sousa Fernandes, Valber Elias de Almeida, Paulo Henrique Gonsalves Dias Diniz, Wilton Silva Lopes, Valderi Duarte Leite, Mario Cesar Ugulino de Araujo
Summary: Monitoring the levels of total suspended solids (TSS) and settleable solids (SetS) in wastewater is crucial for maintaining water quality parameters. Traditional reference methods for determining TSS and SetS are time-consuming and expensive. To address this issue, researchers developed SWAMVA, a new analytical instrument equipped with a machine vision-based automatic sampler and software for real-time digital movie capture. SWAMVA significantly reduced the analysis volume and time while providing accurate and precise results.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Applied
Ellen Souza de Almeida Duarte, Valber Elias de Almeida, Gean Bezerra da Costa, Mario Cesar Ugulino de Araujo, Germano Veras, Paulo Henrique Goncalves Dias Diniz, David Douglas de Sousa Fernandes
Summary: The study showed that NIR spectroscopy and CACHAS can be used to determine the cassava starch content in wheat flour, with NIR spectroscopy being more suitable for definitive quantitative and qualitative analysis, while CACHAS can only provide an alternative preliminary analysis.
Article
Marine & Freshwater Biology
Maria Virginia da Conceicao Albuquerque, Railson de Oliveira Ramos, Valderi Duarte Leite, Jose Tavares de Sousa, Mario Cesar Ugulino de Araujo, Beatriz Susana Ovruski de Ceballos, Wilton Silva Lopes
Summary: Computational molecular modeling, mass spectrometry and in-vivo tests were used to investigate the liposolubility and ecotoxicity of MC-LR degradation byproducts in Fenton process. One of the byproducts was found to be more fat-soluble and more toxic compared to the original substance.
AQUATIC TOXICOLOGY
(2022)
Article
Spectroscopy
Francisco Antonio da Silva Cunha, Maria Janaina de Oliveira, Pedro P. Florez-Rodriguez, Josue Carinhanha Caldas Santos
Summary: A method for mercury speciation using magnetic nanoparticles coated with dithiol and detection by cold vapor atomic fluorescence spectrometry (CV AFS) was developed. It was accurate, precise, and efficiently applied in mercury species determination in a complex matrix without laborious and time-consuming sample preparation.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2022)
Article
Food Science & Technology
Anabel S. Lourenco, Tassio A. Nunes, Amanda C. Silva, Williame F. Ribeiro, Mario C. U. Araujo
Summary: In this study, a square wave voltammetric method was developed for simultaneous determination of tryptamine and histamine in wine using a carbon paste electrode modified with nickel phthalocyanine. The proposed sensor showed high selectivity and accuracy, providing recovery values within a range of 82.65-103.02% for the analyzed biogenic amines.
FOOD ANALYTICAL METHODS
(2022)
Article
Chemistry, Applied
Eduardo A. Lima, Francisco A. S. Cunha, Maria J. Oliveira, Wellington S. Lyra, Mario M. S. Junior, Josue C. C. Santos, Sergio L. C. Ferreira, Mario C. U. Araujo, Luciano F. Almeida
Summary: This study developed a fast and sensitive method for the determination of inorganic antimony in grape juice samples. The method allows for quick sample pretreatment and analysis, and provides accurate and reliable results. The method is environmentally friendly and efficient for handling and analyzing a large number of samples.
Article
Chemistry, Analytical
Fernanda S. Soares, Raissa T. E. Ramalho, Amanda C. Silva, Mario C. U. Araujo
Summary: A sensitive, simple, fast, and inexpensive method for determining diuron in water using square wave voltammetry and a glassy carbon electrode is presented. This method was developed to evaluate diuron contamination in river waters close to sugarcane cultivation, located in the metropolitan region of Joao Pessoa, in the state of Paraiba, Brazil. The results showed that the proposed method has a linear response ranging from 38.5-115.0 nmol L-1 (r(2) = 0.993), a LOD equal to 0.2 nmol L-1, and recovery rates from 88.0 to 108.0%. The method does not require any previous chemical treatment of the sample, contributing to green analytical chemistry.
Article
Environmental Sciences
R. O. Ramos, W. S. Lopes, Y. H. D. M. Luna, M. V. da C. Albuquerque, V. D. Leite, J. T. de Sousa, M. C. U. Araujo
Summary: This study aimed to explain the differences in kinetic between reuse water disinfection processes using UV-C radiation and OH center dot radicals through molecular pathways. The results showed that the Fenton reaction was significantly more effective in inactivating thermotolerant coliforms (TTC) compared to H2O2/UV-C or direct UV-C. This superiority was attributed to the powerful action of OH center dot in disassembling the molecular structure of E. coli cell wall and inducing the collapse of the entire cell structure, as demonstrated through molecular mechanisms. Under optimized conditions, treatment with an anaerobic hybrid reactor, intermittent sand filter, and Fenton process achieved high removal rates for TOC, turbidity, and TTC, making the final effluent suitable for direct potable reuse.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Denise M. Nobrega, Anabel S. Lourenco, David Douglas S. Fernandes, Wellington S. Lyra, Edilene D. T. Moreira, Paulo Henrique G. D. Diniz, Mario C. U. Araujo
Summary: This paper introduces a voltammetric method for determining the coumarin content in guaco leaves, and verifies the reliability of this method. The results show that this method is consistent with high-performance liquid chromatography.
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Alcides Silva Siqueira, Luciano Farias Almeida, Wallace Duarte Fragoso
Summary: A fast and sensitive strategy was developed to quantify polycyclic aromatic hydrocarbons (PAHs) in tap water and sediment samples. The method employed solid-phase extraction on a nylon membrane using a lab-made propulsion system and measured fluorescent signals on the non-pressurized membrane surface. Parallel factor analysis (PARAFAC) was used to resolve spectral overlapping and model matrix interferences. The study results demonstrated that the proposed method can successfully quantify PAHs in real samples.
Article
Chemistry, Analytical
Juliana da Cruz Souza, Sofacles F. C. Soares, Lauro Cassio M. de Paula, Clarimar J. Coelho, Mario Cesar Ugulino de Araujo, Edvan Cirino da Silva
Summary: This paper introduces a bat-inspired algorithm for variable selection in linear discriminant analysis (LDA). The algorithm simulates the echolocation behavior of bats when searching for prey and uses a cost function associated with the average risk of misclassification in LDA. The results show that the algorithm performs similarly to genetic algorithm (GA-LDA) and successive projection algorithm (SPA-LDA) in classifying coffee and vegetable oil samples, and outperforms them in classifying ovarian cancer samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Rossana O. Nobrega, Suelly F. da Silva, David D. S. Fernandes, Welligton S. Lyra, Taynna K. L. de Araujo, Paulo H. G. D. Diniz, Mario C. U. Araujo
Summary: In this study, near-infrared spectroscopy and multivariate classification tools were used to develop methods for authenticating and checking the compliance of decaffeinated instant coffees, as well as discriminating between regular instant coffees according to the roasting degree. The combination of these techniques proved to be valuable and fast for checking the quality of instant coffees.
MICROCHEMICAL JOURNAL
(2023)
Review
Chemistry, Analytical
Sergio L. C. Ferreira, Victor Cerda, Francisco A. S. Cunha, Valfredo A. Lemos, Leonardo S. G. Teixeira, Walter N. L. dos Santos, Joselanio D. J. Coutinho, Icaro S. de A. Porto, Rafael F. de Jesus
Summary: Human health risk indices have been widely used in the toxicological assessment of foods, providing reports with analytical and legal security. These indices include single indices and integrated indices, and their presentation is illustrated through literature reports involving various food matrices.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Kelly D. Silva, Stefani I. E. Andrade, Marcelo B. Lima, Severino S. Monte-Filho, Mario C. U. Araujo, Ricardo A. C. Lima
Summary: In this study, xiquexique cactus was used for the synthesis of highly fluorescent carbon dots, which were then used for the determination of tannins in teas. The proposed method was fast, low-cost, and eco-friendly, and showed no significant difference compared to the reference method.
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2023)
Article
Engineering, Chemical
Railson O. Ramos, Maria V. C. Albuquerque, Suelly F. da Silva, Wellington S. Lyra, Mario Cesar U. Araujo, Jose T. de Sousa, Valderi D. Leite, Wilton S. Lopes
Summary: This article presents a detailed study on the oxidation mechanism and kinetics of profenofos by HO center dot radicals. The oxidation reaction showed different behaviors in acidic and basic environments. Various oxidation by-products and reaction intermediates were identified, and the main mechanisms involved in the mineralization process were analyzed.
DESALINATION AND WATER TREATMENT
(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)
