Article
Environmental Sciences
Eva Weidemann, Rene Laemmer, Thorsten Stahl, Bernd Goeckener, Mark Buecking, Jorn Breuer, Janine Kowalczyk, Hildegard Just, Runa S. Boeddinghaus, Matthias Gassmann
Summary: This study investigated the leaching behavior and fate of per- and polyfluoroalkyl substances (PFAS), finding that nontransformable PFAS could not reach molecular balance, while transformable precursors had high adsorption rates and different transformation products and rates in soil. The experiments with contaminated soil showed the challenge of estimating PFAS leaching and emphasized the need for qualitative assessments and quantitative measurements using different analytical methods.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2022)
Article
Engineering, Environmental
Jia Guo, Jian Zhou, Siqian Liu, Lina Shen, Xiaoxue Liang, Tiecheng Wang, Lingyan Zhu
Summary: Dissolved organic matter (DOM) in soil significantly affects the behavior of per- and polyfluoroalkyl substances (PFASs) in plants. Fulvic acid (FA) and humic acid (HA) reduce the accumulation of 6:2 chlorinated polyfluoroalkyl ether sulfonate (6:2 Cl-PFESA) in wheat roots by reducing its bioavailability in the solution. Moreover, low molecular weight (MW) FA promotes its absorption and translocation from roots to shoots, while high-MW HA has the opposite effect. HA and FA, particularly the latter, enhance the dechlorination of 6:2 Cl-PFESA in wheat by improving electron transfer efficiency and superoxide production.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Gastroenterology & Hepatology
Konsta Hakkarainen, Panu Rantakokko, Jani Koponen, Paivi Ruokojarvi, Merja Korkalainen, Veikko Salomaa, Antti Jula, Satu Mannisto, Markus Perola, Annamari Lundqvist, Ville Mannisto, Fredrik Aberg
Summary: According to this population-based study, persistent organic pollutants (POPs) are positively associated with liver disease and liver injury biomarkers, especially in individuals with obesity or non-alcoholic fatty liver disease. These findings suggest that environmental toxins are important risk factors for chronic liver disease.
LIVER INTERNATIONAL
(2023)
Article
Chemistry, Analytical
Faiz Haque, Anne L. Soerensen, Martin Skold, Raed Awad, Kyra M. Spaan, Melanie Z. Lauria, Merle M. Plassmann, Jonathan P. Benskin
Summary: Temporal and spatial trends of 15 per- and polyfluoroalkyl substances (PFAS) were determined in white-tailed sea eagle (WTSE) eggs from Sweden between 1969 and 2021. PFAS concentrations generally increased until the 1990s-2010 and then plateaued or declined. Coastal populations had higher PFAS concentrations, possibly due to differences in diet and proximity to densely populated areas. Most extractable organofluorine in WTSE eggs consisted of known PFAS, with low levels of novel substances.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2023)
Article
Chemistry, Analytical
Andrea K. Tokranov, Denis R. LeBlanc, Heidi M. Pickard, Bridger J. Ruyle, Larry B. Barber, Robert B. Hull, Elsie M. Sunderland, Chad D. Vecitis
Summary: The study reveals that surface-water/groundwater boundaries have a significant impact on the transport and transformation of PFAS, with natural biogeochemical fluctuations potentially leading to the loss of PFAA precursors and seasonal variations in PFAA concentrations.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2021)
Review
Chemistry, Multidisciplinary
Annika A. M. van der Zon, Joshka Verduin, Rick S. van den Hurk, Andrea F. G. Gargano, Bob W. J. Pirok
Summary: The article discusses the application of sample transformation in different fields and explores the mechanisms and methods to enhance analytical methods. The studies show that sample transformation can accelerate reaction rates, reduce sample complexity, improve detectability, and provide insights into correlations between sample dimensions.
CHEMICAL COMMUNICATIONS
(2023)
Article
Geosciences, Multidisciplinary
Michael J. Gefell, Hai Huang, Dan Opdyke, Kyle Gustafson, Dimitri Vlassopoulos, John E. McCray, Sam Best, Minna Carey
Summary: Groundwater professionals require tools to evaluate various technical issues related to PFAS, including the potential impact of PFAS precursors on PFAA plumes. Numerical modeling results demonstrate that adjusting the mass loading rate can produce similar PFAA plumes with or without a precursor, but the presence of a precursor can impact concentrations and durations of PFAA plumes. Further research on in situ precursor transformation rates and improvements in source area characterization will enhance the predictive value of modeling.
Article
Chemistry, Analytical
Nankun Li, Xiaocong Song, Peng Shen, Ci Zhao
Summary: A rapid and sensitive method for the simultaneous determination of PFASs in vegetables was developed and validated. This method has the advantages of high throughput and stability. The results show that lettuce has the highest PFAS concentration, with variations among different vegetable species.
ANALYTICAL LETTERS
(2022)
Review
Chemistry, Analytical
Claudia Campanale, Silvia Galafassi, Francesca Di Pippo, Iulian Pojar, Carmine Massarelli, Vito Felice Uricchio
Summary: Biodegradable plastic mulches (BDMs) have the potential to be an eco-friendly alternative to conventional plastic mulches in agriculture. However, their long-term impacts on soil ecosystems are still uncertain, and further research is needed. Incorporating BDMs into the soil may stimulate microbial activity, but there is also a risk of incomplete degradation and release of residual microplastics and additives.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Xuechi Yin, Sijie Liu, Deepak Kukkar, Jianlong Wang, Daohong Zhang, Ki-Hyun Kim
Summary: The lateral flow immunoassay strip is a classic and dominant tool in point-of-care detection, known for its portability and simplicity. However, current colored nanomaterials used as signal labels in LFIA have limited sensing potential, leading to the recognition of composite nanoparticles as alternatives to enhance sensitivity, signal readout diversity, anti-matrix interference, and cost-effectiveness.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Yaxin Cao, Longyi Shao, Timothy P. Jones, Wenjing Deng, M. Santosh, Pengju Liu, Cheng-Xue Yang, Yaowei Li, Daizhou Zhang, Kelly Berube
Summary: The toxicity of fibrous particles in ambient air can be higher than other types of particles. Microfibers can be organic or inorganic and their presence in the atmosphere as a result of human activity raises concerns for environmental and public health. Accurate collection, identification, and understanding of the health hazards associated with these fibers are crucial for mitigation strategies and protection of public health.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Chenchen Xie, Chen Meng, Huilin Liu, Baoguo Sun
Summary: The development of food hazard factor (FHF) detection has been moving towards on-site inspection and mobile law enforcement, calling for simple, fast, and affordable analysis technology to ensure food safety and quality. This review comprehensively summarizes the progress in research on smartphone-assisted MIP optosensors, focusing on the key issues of accuracy and sensitivity.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Guillem Peris-Pastor, Cristian Azorin, Jose Grau, Juan L. Benede, Alberto Chisvert
Summary: Green Analytical Chemistry plays an important role in every stage of method development, including sample preparation. Extraction techniques have evolved from conventional ones to a variety of miniaturized techniques in order to enhance analytical performance and ensure safety for operators and the environment. Green metric tools are used to evaluate the impact and sustainability of methods, with AGREEprep selected as the most suitable tool for evaluating published methods in various applications. The miniaturization of sample preparation strategies has led to the use of less and safer solvents, reduced waste generation and energy consumption, and improved portability and throughput.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Helena Hruskova, Roman Reminek, Frantisek Foret
Summary: This review article summarizes the progress and recent studies in offline electromigration preparative techniques between 2018 and 2023. It covers various techniques including electrophoresis, free-flow electrophoresis, isoelectric focusing, and isotachophoresis, providing theoretical aspects, trends, and solutions to existing limitations in each technique.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Mayank Garg, Nicole Pamme
Summary: This review focuses on the removal strategies of templates from molecularly imprinted polymers (MIPs) used in diagnostic biosensors. Chemical-based and electrochemical-based template extraction approaches are summarized and evaluated, providing guidance for researchers in the fields of analytical chemistry, diagnostics, and materials science for the design of MIP-based sensors.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Ivneet Banga, Anirban Paul, Nathan Kodjo Mintah Churcher, Ruchita Mahesh Kumar, Sriram Muthukumar, Shalini Prasad
Summary: Breathomics is an emerging field that focuses on analyzing exhaled breath to diagnose and monitor respiratory diseases. Electrochemical sensors, with their high sensitivity, selectivity, and low cost, play a significant role in breathomics and can be integrated into portable devices for point-of-care diagnosis.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Fabjola Bilo, Paola Cirelli, Laura Borgese
Summary: This review explores the application of X-ray fluorescence (XRF) spectrometry for elemental analysis of particulate matter (PM) in air quality monitoring. It discusses the fundamentals of XRF, experimental configurations, PM sampling devices and substrate, sample preparation strategies, qualitative and quantitative analysis, as well as the challenges faced by XRF in becoming a reliable analytical technique for PM analysis.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Hakim Faraji
Summary: The dispersive liquid-liquid microextraction (DLLME) technique is widely popular in analytical chemistry due to its high efficiency, cost-effectiveness, and simplicity. Recent advancements have addressed the limitations of DLLME, incorporating greener solvents, innovative dispersion strategies, and simplified procedures. These changes have made DLLME a more sustainable and efficient technique.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Sherin F. Hammad, Inas A. Abdallah, Alaa Bedair, Reda M. Abdelhameed, Marcello Locatelli, Fotouh R. Mansour
Summary: Carbon nanomaterials (CNMs) have excellent capabilities in terms of adsorption, enhanced oxidation, and photocatalysis, attracting widespread attention in different fields. Metal-organic frameworks (MOFs) have been widely used due to their regular network structure, porous nature, and large specific surface area. However, the instability of MOFs in aqueous solutions limits their applications in chemical sensing. Recent studies have focused on increasing the stability of MOFs in water-based matrices through chemical modifications using CNMs.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Alexandra Pape, Oliver J. Schmitz
Summary: Low temperature plasmas based on dielectric barrier discharges have emerged as a recent development in ion source research. These ion sources are applicable to heat-sensitive analytes and can ionize a wide range of compounds. Despite intensive research on important parameters such as configuration, shape, size, and materials in the past two decades, the actual ionization mechanism for all plasma gases has not been fully elucidated. This review provides an overview of atmospheric pressure ion sources, with a focus on plasma and dielectric barrier discharge based ion sources, summarizing the reactions occurring in the plasma and discussing the applications developed by different research groups.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Hai Xiong, Fengli Li, Linyu Zeng, Qiyu Lei
Summary: This review provides an overview of the emerging trends in the use of functional COF nanomaterials as biosensors for DNA/RNA detection. It summarizes the construction of DNA/RNA hybridized COF nanoprobes and their potential applications in bioanalyte detection, biosensing, biomarker imaging, and clinical biomedicine.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Bing Yan
Summary: This article summarizes the recent progress in logic gate computing and operation based on multiple luminescence response and chemical sensing for lanthanide functionalized MOF hybrid systems. The article first describes multi-color luminescence and the subsequent multiple luminescence response. The basic concept of logic gate operation and the advantages of lanthanide-based hybrid materials are then introduced. Reports on logic gate operation using pure lanthanide MOFs are provided, followed by a detailed summary of logic gate operations using lanthanide functionalized MOF hybrid materials. Additionally, the article discusses the practical luminescent detection of analytes by correlating the luminescence responsive signals and the concentration of different analytes. Finally, the article concludes with a prospect for this topic.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Brij Mohan, Gurjaspreet Singh, Rakesh Kumar Gupta, Pawan Kumar Sharma, Alexander A. Solovev, Armando J. L. Pombeiro, Peng Ren
Summary: Porous materials, particularly hydrogen-bonded organic frameworks (HOFs), have gained significant attention due to their versatile applications and unique properties such as well-defined crystalline structure and easy regeneration processes. This article provides a comprehensive overview of HOFs, including synthesis methods, hydrogen bonding motifs, recent advancements, and potential applications, offering valuable guidance for further exploration in this dynamic field.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)