Article
Environmental Sciences
Cheng Yao, Feifei Che, Xia Jiang, Zhihao Wu, Junyi Chen, Kun Wang
Summary: The study revealed that under the influence of pollutants discharged by textile plants, the concentrations of antimony compounds in the sediment of shallow lakes are relatively high. Antimony was found to be immobile in the oxygen-rich layer, but released along with other elements in the anoxic environment, depending on the redox conditions and the labile antimony content in the sediment. The mobility of antimony in shallow lakes and wetland sediments should be carefully considered when assessing the potential ecological risks.
Article
Chemistry, Analytical
Vendula Smolikova, Pavlina Pelcova, Andrea Ridoskova, Martine Leermakers
Summary: This study evaluated the performance stability of four different DGT binding phases for uranium monitoring in estuarine and marine environments. It was found that the performance of these DGTs varied with water salinity and deployment time, and some resins showed good performance in different salinity environments.
Article
Chemistry, Analytical
Hao Cheng, Yanying Li, Hamid Pouran, William Davison, Hao Zhang
Summary: This study demonstrated that the diffusion coefficient of uranium is independent of pH and the type of binding gel used, as long as the binding efficiency (B) is taken into account. These findings suggest that DGT equipped with either Metsorb or Chelex binding gels can accurately measure uranium under various environmental conditions.
ENVIRONMENTAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Vendula Smolikova, Pavlina Pelcova, Andrea Ridoskova, Martine Leermakers
Summary: In this study, the Lewatit FO 36-DGT resin gel showed high uptake efficiency for uranium and a new elution protocol was proposed for simultaneous elution of arsenic and uranium. The elution efficiencies for As and U were found to be satisfactory, and the new protocol also allowed for fast and simple analysis of both elements using ICP-MS. This suggests that the Lewatit FO 36-DGT technique could become more widely used in laboratories without the need for modifications to existing analytical methods.
Review
Engineering, Environmental
Yixuan Liang, Hanbing Li, Sumei Li, Sha Chen
Summary: Antibiotics, widely used in human and veterinary medicine, are persistent organic compounds that contribute to the development of antibiotic resistance in microbes. This review discusses the use of o-DGT technology to study the behavior of antibiotics in different environmental media. It compares different agarose diffusive gel and binding agents, explores the feasibility of o-DGT in water and soil, and analyzes the potential of using o-DGT in sediment for antibiotic measurements.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Analytical
Josselin Gorny, Cyrielle Jardin, Olivier Diez, Josep Galceran, Alkiviadis Gourgiotis, Steffen Happel, Frederic Coppin, Laureline Fevrier, Caroline Simonucci, Charlotte Cazala
Summary: The study investigated the measurement of total I- concentration in environmental waters using the AgdCl-DGT method, which showed good selectivity and stability. Results demonstrated different responses of the AgdCl-DGT method in waters with different ionic strengths.
ANALYTICA CHIMICA ACTA
(2021)
Article
Environmental Sciences
Fei Xu, Yu Wang, Xinyi Chen, Luyu Liang, Yi Zhang, Fubin Zhang, Tuo Zhang
Summary: This study assessed the environmental risks of the Jialing River using risk assessment indexes, sequential extraction, and the diffusive gradients in thin films (DGT) technique, focusing on cobalt (Co) remobilization in sediments. The results showed that Co poses a low environmental and ecological risk to the local aquatic environment, but sediments may still serve as a source of Co release. Sand mining activities were found to contribute significantly to Co release from specific fractions in sediment.
ENVIRONMENTAL RESEARCH
(2022)
Article
Geochemistry & Geophysics
Zhihao Wu, Xia Jiang, Junyi Chen, Shuhang Wang
Summary: In this study, a passive sampling technique called diffusion gradients in thin films (DGT) was used to investigate the biogeochemical behaviors and dynamic transfer of PO4-P, NH4-N, and NO3-N in sediments of Lake Hulun in China. Based on the analysis of DGT concentration profiles and redox status, it was found that the release of phosphorus (P) is mainly controlled by the reductive dissolution of Mn(IV) or Fe(III) (oxyhydr)oxides, while the release of ammonium (NH4-N) is influenced by denitrification and dissimilatory nitrate reduction. The results of this study provide valuable information for lake pollution control and sediment remediation strategies.
JOURNAL OF GEOCHEMICAL EXPLORATION
(2023)
Article
Environmental Sciences
Xiaowen Ji, Jonathan K. Challis, Jenna Cantin, Ana S. Cardenas Perez, Yufeng Gong, John P. Giesy, Markus Brinkmann
Summary: Dynamic processes of organic contaminants in sediments have toxicological implications in aquatic systems. The study used DGT devices to measure the flux and exchange rates of antipsychotic compounds in sandy sediments. The results showed the continuous removal of these compounds from the sediments and their movement to the adjacent sediment solution. A dynamic model was used to determine the rate constants and distribution coefficients of the antipsychotics. The study highlights the importance of understanding the desorption kinetics of contaminants in sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yang-Guang Gu, Hong-Hui Huang, Shi-Jun Jiang, Xiu-Yu Gong, Xiu-Li Liao, Ming Dai
Summary: This study assesses the integrated toxicity of mercury species mixtures in sediment using the DGT technique in Daya Bay. The results indicate that both inorganic mercury and methyl mercury in the sediments exceed the risk threshold and have adverse effects on aquatic biota. However, the probabilistic biological risk assessment shows that the toxicity probability in Daya Bay's sediments is low.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Danielle J. Allen, Jianyin Huang, Mark Farrell, Luke M. Mosley
Summary: The analysis of porewater concentrations in constructed wetland sediments using DET techniques revealed the sources and sinks of nutrients and their impact on water quality. Aeration of the water column improved oxygen levels and redox potential in the sediment, leading to decreased ammonium concentrations but increased phosphate and ferrous iron concentrations. Nitrate concentrations were below the detection limit, indicating limited nitrification-denitrification processes. The results highlight the usefulness of DET techniques in quantifying nutrient concentrations in constructed wetlands under different environmental conditions.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Zhihao Wu, Xia Jiang, Junyi Chen, Shuhang Wang, Cheng Yao
Summary: This research used DGT assemblies with different binding layers to study the mobility of N and P in sediments in Western Lake Taihu. The results provide important insights into the biogeochemical processes and nutrient release in lakes, which are crucial for effective nutrient management.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Hamid Pouran, Mohammed Alkasbi, Elma Lahive, Stephen Lofts, Hao Zhang
Summary: The study utilized DGT technique to measure the concentration of ZnO NPs in soils, revealing variations in the dissolution of ZnO NPs and the available concentrations of dissolved and nanoparticulate zinc in different soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Eyram Norgbey, Yiping Li, Ya Zhu, Amechi S. Nwankwegu, Robert Bofah-Buah, Linda Nuamah, Yashuai Pu
Summary: The study revealed that the black water events in Tianbao reservoir were mainly caused by high concentrations of TFe, Mn, and P in the sediments, as well as high organic matter from Eucalyptus plantation surrounding the reservoir and strong thermal stratification leading to hypoxia in the hypolimnion. The movement of Fe2+, Mn2+, S2-, P, and DOC at the water-sediment boundary due to their redox interactions resulted in the production of black substances in the hypolimnion, contributing to the phenomenon of black water reservoir.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Article
Engineering, Environmental
Liying Yan, Qiuyu Rong, Hao Zhang, Kevin C. Jones, Yanying Li, Jun Luo
Summary: A new DGT device and analytical technique were developed to sample and quantify glucocorticoids in aquatic systems. The device showed independent performance under various environmental conditions and demonstrated reliability for monitoring glucocorticoids in natural waters. The development of this new technique will contribute to a better understanding of the behavior and fate of these compounds in aquatic environments.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Hana Docekalova, Petr Skarpa, Bohumil Docekal
Article
Environmental Sciences
Kristyna Vecerova, Zbynek Vecera, Bohumil Docekal, Michal Oravec, Antonio Pompeiano, Jan Triska, Otmar Urban
ENVIRONMENTAL POLLUTION
(2016)
Article
Environmental Sciences
J. Lebedova, L. Blahova, Z. Vecera, P. Mikuska, B. Docekal, M. Buchtova, I. Misek, J. Dumkova, A. Hampl, K. Hilscherova
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2016)
Article
Toxicology
J. Dumkova, T. Smutna, L. Vrlikova, P. Le Coustumer, Z. Vecera, B. Docekal, P. Mikuska, L. Capka, P. Fictum, A. Hampl, M. Buchtova
PARTICLE AND FIBRE TOXICOLOGY
(2017)
Article
Chemistry, Analytical
Michaela Dufka, Bohumil Docekal
JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY
(2018)
Article
Chemistry, Analytical
Bohumil Docekal, Michaela Gregusova
Article
Chemistry, Analytical
Michaela Gregusova, Bohumil Docekal
ANALYTICA CHIMICA ACTA
(2011)
Article
Biochemistry & Molecular Biology
Hana Docekalova, Vladena Kovarikova, Bohumil Docekal
CHEMICAL SPECIATION AND BIOAVAILABILITY
(2012)
Article
Chemistry, Analytical
Jan Kratzer, Bohumil Docekal, Uwe Heitmann, Jiri Dedina
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2011)
Article
Spectroscopy
Zuzana Furdikova, Bohumil Docekal
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2009)
Article
Chemistry, Multidisciplinary
Pavel Rossner, Kristyna Vrbova, Andrea Rossnerova, Tana Zavodna, Alena Milcova, Jiri Klema, Zbynek Vecera, Pavel Mikuska, Pavel Coufalik, Lukas Capka, Kamil Krumal, Bohumil Docekal, Vladimir Holan, Miroslav Machala, Jan Topinka
Article
Biochemistry & Molecular Biology
Jana Dumkova, Tereza Smutna, Lucie Vrlikova, Bohumil Docekal, Daniela Kristekova, Zbynek Vecera, Zuzana Husakova, Veronika Jakesova, Adriena Jedlickova, Pavel Mikuska, Lukas Alexa, Pavel Coufalik, Michaela Tvrdonova, Kamil Krumal, Tomas Vaculovic, Viktor Kanicky, Ales Hampl, Marcela Buchtova
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2020)
Article
Biochemistry & Molecular Biology
Jana Dumkova, Lucie Vrlikova, Zbynek Vecera, Barbora Putnova, Bohumil Docekal, Pavel Mikuska, Petr Fictum, Ales Hampl, Marcela Buchtova
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2016)
Proceedings Paper
Nanoscience & Nanotechnology
T. Zeman, M. Buchtova, B. Docekal, I. Misek, J. Navratil, P. Mikuska, O. Sery, Z. Vecera
4TH INTERNATIONAL CONFERENCE ON SAFE PRODUCTION AND USE OF NANOMATERIALS (NANOSAFE2014)
(2015)
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)