Article
Chemistry, Analytical
Kamal K. Jinadasa, Paloma Herbello-Hermelo, Elena Pena-Vazquez, Pilar Bermejo-Barrera, Antonio Moreda-Pineiro
Summary: A pre-concentration method for low mercury levels in seaweed was developed, utilizing an imprinted polymer for selective extraction and determination of mercury species. The method showed low detection limits, good repeatability, and was successfully applied to certified reference materials and edible seaweeds for analysis of methylmercury and Hg(II).
Article
Chemistry, Analytical
Yihuan Song, Qingfang Ma, Heyong Cheng, Jinhua Liu, Yuanchao Wang
Summary: A method utilizing online solid-phase extraction coupled with high performance liquid chromatography and inductively coupled plasma mass spectrometry was developed for simultaneous enrichment and analysis of ultra-trace lead and mercury species in water. This method allows for efficient and accurate determination of lead and mercury species in water samples, with high enrichment factors and low LODs and LOQs. The method was successfully applied to analyze trace lead and mercury species in various types of water samples, showing promising results for unstable sample analysis.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Applied
Zhenzhen Yao, Jixin Liu, Xuefei Mao, Guoying Chen, Zhihong Ma, Bingru Li
Summary: For the first time, separation and analysis of Hg2+ and methylmercury was achieved using in-line SPE-LC-AFS. The method was easy, compact, robust, and sensitive in mercury speciation analysis, ensuring food safety.
Article
Chemistry, Analytical
Sanaz Zarabi, Rouhollah Heydari, Sayed Zia Mohammadi
Summary: The new version of dispersive micro-solid phase extraction in a micro-channel system was developed for the first time, showing higher extraction efficiency compared to conventional methods. Various parameters were optimized, leading to a linear method with good detection limits. The validated method was successfully applied for determining ibuprofen in plasma samples, demonstrating its potential for future research.
MICROCHEMICAL JOURNAL
(2021)
Review
Chemistry, Analytical
Samin Hamidi, Arezou Taghvimi, Negin Mazouchi
Summary: Metal organic frameworks (MOFs) are metal clusters characterized by high surface area, commutable structure and pore size, chemical and thermal stability, widely used in various scientific fields. They are good candidates for designing novel adsorbents for sample preparation methods, especially for extraction of environmental, food, and biological samples.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Katarzyna Pytlakowska, Ewa Malicka, Ewa Talik, Anna Gagor
Summary: A selective method for determining mercury ions in various water samples was developed using nano-bismuth sulfide as a solid sorbent, ultrasound-assisted dispersive micro-solid phase extraction, and EDXRF technology. This method allows for highly sensitive detection of mercury ions at low concentrations, even in the presence of high concentrations of coexisting anions and cations typically found in surface waters.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Review
Chemistry, Analytical
Justyna Werner, Agnieszka Zgola-Grzeskowiak, Julia Platkiewicz, Justyna Plotka-Wasylka, Natalia Jatkowska, Alina Kalyniukova, Serhii Zaruba, Vasil Andruch
Summary: One of the challenges in modern analytical chemistry is the detection of trace contaminants using sensitive and selective techniques. Due to the complexity of some samples, proper sample preparation and preconcentration of analytes are often required. In line with the principles of Green Analytical Chemistry (GAC), solvent-free extraction techniques have gained popularity, such as solid-phase microextraction (SPME) and its modifications, which aim to reduce labor, time consumption, and the use of hazardous solvents. This review focuses on the use of deep eutectic solvents (DESs) in solid-phase (micro)extraction techniques and highlights their important applications.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Charikleia Tziasiou, Anastasia D. Pournara, Manolis J. Manos, Dimosthenis L. Giokas
Summary: This study reports the use of a thiol-functionalized Zr-metal organic framework (MOF-SH) for the extraction of noble metal nanoparticles from environmental water samples. The MOF-SH material has high adsorption capacity and short extraction time, and can effectively extract and discriminate gold nanoparticles and gold ions, with comparable detection limits and precision to other methods.
MICROCHEMICAL JOURNAL
(2023)
Review
Biochemical Research Methods
Mahsa Samadifar, Yadollah Yamini, Mohammad Mahdi Khataei, Mahboue Shirani
Summary: This study reviews the packed sorbent solid phase (micro) extraction methods from manual to automated modes. The automated methods offer remarkable advantages such as high sample throughput, reproducibility, sensitivity, and extraction efficiency. Various methods including solid-phase extraction, pipette tip micro-solid phase extraction, microextraction by packed sorbent, in-tip solid phase microextraction, in-tube solid phase microextraction, lab-on-a-chip, and lab-on-a-valve are discussed, along with their recent applications for the extraction of organic and inorganic compounds. The combination of novel technologies like 3D printing and robotic platforms with (semi)automated methods are also investigated as the future trend.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Chemistry, Applied
Parisa Khodayari, Niloofar Jalilian, Homeira Ebrahimzadeh, Shima Amini
Summary: In this study, a novel nanofiber was developed as a sorbent for micro-solid phase extraction and successfully used for the rapid and simultaneous extraction of three anti-cancer drugs. The sorbent exhibited good mechanical stability, high porosity, and significant extraction ability.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Chemistry, Analytical
Vanesa Romero, Isela Lavilla, Alicia Alvarez, Carlos Bendicho, Begona Espina, Laura M. Salonen
Summary: In this study, a new analytical approach based on ultrasound-assisted dispersive (micro)solid phase extraction (US-D-uSPE) using TpBD-Me-2 covalent organic framework (COF) as the adsorbent was proposed for the fluorescent determination of two polycyclic synthetic fragrances in seawater. The method demonstrated high adsorption efficiencies and desorption efficiencies, as well as low limits of detection for the target analytes. It was successfully applied to seawater analysis without the need for a previous sample treatment, showing great potential for environmental monitoring of emerging organic pollutants.
ANALYTICA CHIMICA ACTA
(2022)
Review
Chemistry, Analytical
Qiong Jiang, Shuwu Zhang, Min Sun
Summary: Sample pretreatment is crucial in analyzing complex samples. Graphene and graphene oxide composites have been widely used as sorbents in sample preparation, enhancing enrichment and selectivity through multiple mechanisms. This review focuses on the recent development of graphene/graphene oxide-based sorbents in solid phase extraction and solid phase microextraction from 2017 to 2022, discussing different extraction techniques and highlighting current problems and prospects.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Chengjiang Zhang, Hongmei Yuan, Zeyi Lu, Yuhuang Li, Lirong Zhao, Zhuomin Zhang, Gongke Li
Summary: The beta-ketoenamine-linked TpPa-1 synthesized by 1,3,5-triformylphloroglucinol and paraphenylenediamine was employed as an absorbent for online micro-solid phase extraction of trace bisphenols. TpPa-1 exhibited large surface areas, high stability, and hydrophobicity, and showed superior enrichment capacity for extracting bisphenols compared to commercial sorbents. The developed method demonstrated a wide linear range and high sensitivity for the detection of bisphenols in plastic samples.
JOURNAL OF SEPARATION SCIENCE
(2022)
Article
Engineering, Environmental
Mehdi Fattahi, Elham Ezzatzadeh, Rahil Jalilian, Alireza Taheri
Summary: In this study, a new class of hierarchical silica based imprinted mesoporous polymers was successfully fabricated for the selective extraction of cadmium and lead ions. The material exhibited a hierarchical mesoporous structure with high specific surface area and adsorption capacity for Cd(II) and Pb(II). The optimal experimental conditions were determined using response surface methodology and successfully applied for the detection of Cd(II) and Pb(II) ions in river water and fish samples.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Analytical
Jiahua Fan, Xuelian Yao, Zhihong Yan, Yang Li, Jiayu Liu, Ying Cai
Summary: Sixteen polycyclic aromatic hydrocarbons (PAHs) contaminants in Chinese herbal medicines were successfully determined using the metal covalent organic framework (MCOF) combined with gas chromatography-mass spectrometry (GC-MS) and dispersive micro-solid phase extraction (D-mu-SPE) methods. The established method showed high sensitivity and recovery rate for the qualitative and quantitative analysis of various PAHs.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Dmitrii Yu. Troitskii, Ivan A. A. Bekesha, Olga V. V. Shuvaeva, Pavel E. E. Plyusnin
Summary: The development of a methodology for direct mercury speciation in solid samples using thermal release and electrothermal atomic absorption detection is important, but some issues hinder its practical application. This study focused on the thermal behavior of various mercury species and showed that their physicochemical characteristics change under thermal exposure, but baseline separation can still be achieved within 30 minutes using programmable heating mode.
ANALYTICAL METHODS
(2023)
Article
Engineering, Environmental
Anna A. Lysova, Konstantin A. Kovalenko, Anton S. Nizovtsev, Danil N. Dybtsev, Vladimir P. Fedin
Summary: This study thoroughly investigated the adsorption and separation of light saturated hydrocarbons (methane, ethane, and propane) on a series of metal-organic frameworks. The impact of the size and nature of the glycol moiety on the adsorption parameters was revealed. The studied metal-organic frameworks showed exceptional performance in the practical separation of natural gas or other relevant mixtures of light alkanes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Valentina Georgievna Ponomareva, Elena Sergeevna Shutova, Konstantin Aleksandrovich Kovalenko, Vladimir Petrovich Fedin
Summary: New (1-x)CsH2PO4-xUiO-66 electrolytes with high proton conductivity and thermal stability have been developed. The composite materials show an improved proton conductivity by two orders of magnitude at low temperatures due to interface interaction and dispersion, while maintaining stability at high temperatures. These composites have potential applications as proton membranes in electrochemical devices.
Article
Chemistry, Multidisciplinary
Vadim A. Dubskikh, Konstantin A. Kovalenko, Anton S. Nizovtsev, Anna A. Lysova, Denis G. Samsonenko, Danil N. Dybtsev, Vladimir P. Fedin
Summary: A porous metal-organic framework based on thieno [3,2-b]thiophenedicarboxylate was synthesized and characterized. The framework showed a high selectivity for CO2 adsorption and a potential application in the separation and sequestration of CO2 from biogas and flue gas.
Article
Biochemistry & Molecular Biology
Vadim A. A. Dubskikh, Aleksei A. A. Kolosov, Anna A. A. Lysova, Denis G. G. Samsonenko, Alexander N. N. Lavrov, Konstantin A. A. Kovalenko, Danil N. N. Dybtsev, Vladimir P. P. Fedin
Summary: Five new metal-organic frameworks based on Mn(II) and 2,2'-bithiophen-5,5'-dicarboxylate with various chelating N-donor ligands have been synthesized and their crystal structure has been determined. The influence of the ligand's bulkiness on the framework dimensionality and structure has been analyzed. Compound 1 showed promising gas adsorption and separation properties. The magnetic properties of the compounds have also been studied.
Article
Chemistry, Inorganic & Nuclear
Pavel A. Demakov, Konstantin A. Kovalenko, Alexander N. Lavrov, Vladimir P. Fedin
Summary: Two new metal-organic frameworks based on flexible odabco ligands were synthesized and characterized. They possess cationic 2D networks filled with perchlorate anions and dioxane solvent in the interlayer space. Gas adsorption properties and magnetization characteristics were investigated.
Article
Chemistry, Inorganic & Nuclear
Pavel V. Burlak, Denis G. Samsonenko, Konstantin A. Kovalenko, Vladimir P. Fedin
Summary: This study presents a series of Cd(II) coordination polymers containing two types of ligands. The compounds were characterized by various techniques and their properties were studied through structural transformations and photoluminescence analysis. The results demonstrate that the compounds have porosity, selective adsorption, and their photoluminescence color changes with excitation wavelength.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Ksenia D. Abasheeva, Pavel A. Demakov, Evgeniya V. Polyakova, Alexander N. Lavrov, Vladimir P. Fedin, Danil N. Dybtsev
Summary: This study obtained four new metal-organic frameworks with high structural diversity. The magnetic and adsorption properties of these materials were investigated and confirmed through magnetization measurements and ion exchange experiments. The results show promising potential for their applications as selective adsorbents and other functional materials.
Article
Chemistry, Multidisciplinary
Nikita K. K. Kulachenkov, Bogdan Orlioglo, Eugene S. S. Vasilyev, Svyatoslav A. A. Povarov, Alexander M. M. Agafontsev, Semyon Bachinin, Sergei Shipilovskikh, Artem Lunev, Denis G. G. Samsonenko, Vladimir P. P. Fedin, Konstantin A. A. Kovalenko, Valentin A. A. Milichko
Summary: This study presents the design of 1D MOFs using a nopinane-annelated organic ligand and Co(ii) or Ni(ii), which allows for tuning the optical modulation bandwidth. Structural and time-resolved analysis reveals the mechanism, rates, and endurance of the optical modulation, thereby expanding the repertoire of sustainable MOFs for tunable optical modulators.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Pavel A. Demakov, Danil N. Dybtsev, Vladimir P. Fedin
Summary: UV-induced [2+2] dimerization of 2-cyclopenten-1-one and 2-methyl-2-cyclopenten-1-one was successfully carried out in a single-crystal-to-single-crystal manner within a porous metal-organic framework. Interactions among molecules dictate the positioning of α,β-enone molecules within the host channels, facilitating subsequent photoaddition reaction and yielding exclusive head-to-tail anti dimers.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Xiaolin Yu, Alexey A. Ryadun, Konstantin A. Kovalenko, Tatiana Y. Guselnikova, Valentina G. Ponomareva, Andrei S. Potapov, Vladimir P. Fedin
Summary: Lanthanide metal-organic frameworks (Ln-MOFs) can be utilized in various research fields by combining the luminescent characteristics of lanthanides and the advantages of porous materials. A water-stable and high-temperature resistant Eu-MOF with high photoluminescence quantum yield was synthesized, showing excellent selectivity and quenching sensing for Fe3+ and ofloxacin. It also demonstrated color modulation with Tb3+ and La3+ for developing white LED components, and rare reverse adsorption selectivity in a CO2/C2H2 gas mixture. The protonated carboxyl groups in the Eu-MOF provided an efficient conducting platform for proton transfer.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ekaterina A. Zhigileva, Yulia Yu. Enakieva, Anna A. Sinelshchikova, Vladimir V. Chernyshev, Ivan N. Senchikhin, Konstantin A. Kovalenko, Irina A. Stenina, Andrey B. Yaroslavtsev, Yulia G. Gorbunova, Aslan Yu. Tsivadze
Summary: Herein, a novel anionic hydrogen-bonded organic framework (HOF-IPCE-1Pd) based on a new complex of palladium(ii) with meso-tetrakis(4-(phosphonatophenyl))porphyrin is reported. The framework shows high crystallinity, simple synthetic procedure, and is easily regenerated. The directed structural transformation of the framework and the absorption of ammonia and water molecules led to the formation of a more hydrolytically stable structure (HOF-IPCE-1Pd-NH3) with a proton conductivity of 1.27 x 10(-3) S cm(-1) at 85 degrees C and 85% RH, which is one of the highest among all known porphyrin-based HOFs. It is noteworthy that the reversible absorbance of water/ammonia molecules preserves the crystal structure of HOF-IPCE-1Pd-NH3.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Ivan V. Khariushin, Alexander S. Ovsyannikov, Stephane A. Baudron, Jas S. Ward, Anniina Kiesila, Kari Rissanen, Elina Kalenius, Konstantin A. Kovalenko, Vladimir P. Fedin, Svetlana E. Solovieva, Igor S. Antipin, Veronique Bulach, Sylvie Ferlay
Summary: Giant octahedral M-32 coordination cages were synthesized through self-assembly using sulfonylcalix[4]arene-supported tetranuclear M(ii) clusters (M = Co, Ni) and hybrid linker based on tris(dipyrrinato)cobalt(iii) complexes appended with peripherical carboxylic groups. These solid-state supramolecular architectures demonstrated excellent performance as adsorbents for the separation of industrially important gas mixtures due to their intrinsic and extrinsic porosity.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Pavel A. Demakov, Alexey A. Ryadun, Vladimir P. Fedin
Summary: Six new three-dimensional metal-organic frameworks based on early lanthanide(III) cations and trans-1,4-cyclohexanedicarboxylic acid were synthesized and their structures, thermal stability, and luminescent properties were investigated.
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)