Article
Chemistry, Analytical
Emir Nazdrajic, Khaled Murtada, Janusz Pawliszyn
Summary: Selecting the optimal binder and sorbent affinity can determine whether a composite behaves as an efficient extraction coating, permeable membrane, or impermeable barrier. For strong sorbents, extraction rate is primarily controlled by diffusion, with low analyte diffusion caused by retarding forces generated by partitioning into the sorbent.
ANALYTICAL CHEMISTRY
(2021)
Review
Chemistry, Analytical
Karolina Delinska, Paulina W. Rakowska, Adam Kloskowski
Summary: The use of porous materials as sorbents in sample preparation techniques, particularly in the development of novel fibers for Solid-phase microextraction (SPME), has recently attracted scientific attention. The selection of a robust sorbent is crucial for successful utilization of SPME under variable conditions. Understanding the nature of newly developed porous SPME coatings and the impact of their structures on analytical parameters is essential for their successful use as potential sorption media for specific purposes.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
Article
Agriculture, Multidisciplinary
Jian Ji, Heyang Huang, Li Li, Jin Ye, Jiadi Sun, Lina Sheng, Yongli Ye, Yi Zheng, Zhijie Zhang, Xiulan Sun
Summary: This study utilized solid-phase microextraction combined with full two-dimensional gas chromatography time-of-flight mass spectrometry to detect volatile organic compounds (VOCs) produced by F. graminearum during wheat infestation. The results showed that VOCs emitted by F. graminearum can differentiate strains at different growth stages and are correlated with the composition of fungal flora and mycotoxin production.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Acoustics
Danielle S. Kohan, Roman P. Lanno, Linda K. Weavers
Summary: Ultrasound releases PAHs from contaminated sediments and degrades them in solution. The concentration of PAHs during ultrasound treatment may exceed the expected equilibrium concentration, while the concentration decreases after ultrasound is stopped.
ULTRASONICS SONOCHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Joanna Bogusiewicz, Katarzyna Burlikowska, Karol Jaroch, Paulina Zofia Gorynska, Krzysztof Gorynski, Marcin Birski, Jacek Furtak, Dariusz Paczkowski, Marek Harat, Barbara Bojko
Summary: Alterations in the carnitine shuttle system may indicate the presence of cancer. In-depth analyses of this pathway in different malignant tumors could be crucial for cancer detection and treatment.
Article
Biochemistry & Molecular Biology
Kamil Luczykowski, Natalia Warmuzinska, Dagmar Kollmann, Markus Selzner, Barbara Bojko
Summary: The development of surgical techniques, immunosuppressive strategies and new organ preservation methods have led to an insufficient number of organs for transplantation. Using organs from expanded criteria donors and developing new analytical solutions to evaluate organ quality before transplantation are potential options. This study proposed bile metabolomic analysis to assess liver metabolism and biliary tract function based on the organ preservation method and ischemia time.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Electrical & Electronic
Joaquin Ascorbe, Omar Fuentes, Francisco J. Arregui, Ignacio R. Matias, Jesus M. Corres
Summary: In this study, an optical fiber vacuum sensor based on a single-mode multimode single-mode (SMS) structure coated with polydimethylsiloxane (PDMS) is investigated. Different approaches are explored to enhance sensor performance, including decreasing fiber diameter and modifying coating properties by adjusting solvent proportion. Decreasing fiber diameter and using toluene as a solvent are identified as successful strategies for improving sensor sensitivity.
IEEE SENSORS JOURNAL
(2021)
Article
Materials Science, Paper & Wood
Minjay Chung, Sensung Cheng, Chunya Lin, Shangtzen Chang
Summary: This study focused on the volatile aromatic constituents extracted from underground and aboveground Bambusa oldhamii shoots using solid-phase microextraction. The analysis revealed distinct volatile compounds in the two types of shoots, providing insight into the aromatic characteristics of B. oldhamii shoots.
Article
Chemistry, Applied
Cody Williams, Maria Aletta Stander, Andrei Medvedovici, Astrid Buica
Summary: In this study, an online HS-SPME-GCMS method was optimized and applied to quantitatively determine 53 terpenoids. The method's performance and sample preparation conditions were evaluated. The method achieved high precision and accuracy for the analyzed beers and gins. The study also assessed the stability of selected terpenoids in a synthetic beer and successfully applied the method to commercial craft beers and gins. The identification and quantification of a large number of terpenoids in one run using authentic standards is significant for fast and accurate terpenoid screening in products.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Environmental Sciences
Zhongyun Zhang, Jinzhong Wan, Li Liu, Mao Ye, Xin Jiang
Summary: The study found that simultaneous application of rapeseed oil and tartaric acid resulted in better degradation rates of Organochlorine pesticides (OCPs), significantly increased microbial enzyme activity and promoted the growth of dominant bacterial communities in soils. The relative abundance of Proteobacteria at phylum level was significantly increased. Functional gene results illustrated that bio-stimulation facilitated the total relative abundance of degradation genes and other metabolic genes.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Biochemistry & Molecular Biology
Karolina Delinska, Kateryna Yavir, Adam Kloskowski
Summary: This work presents the development of a new ionic liquid-based silica SPME fiber for the determination of seven organophosphorus insecticides in cucumber and grapefruit samples. The new fiber showed higher selectivity and improved detection limits compared to commercially available fibers when used with GC-FID. The method also demonstrated good repeatability.
Article
Food Science & Technology
Mohamed A. Farag, Amira R. Khattab, Samir Shamma, Sherif M. Afifi
Summary: This study investigated the compositional heterogeneity in aroma profile and nutrients of three types of mahlab seeds in response to roasting. White mahlab from Egypt is rich in fatty acids, while organic acids and aldehydes were the most abundant volatiles identified. Aldehydes were found to be the most discriminatory in seed origin and aroma determination.
Article
Environmental Sciences
Valentina Longo, Angiola Forleo, Antonio Vincenzo Radogna, Pietro Siciliano, Tiziana Notari, Sebastiana Pappalardo, Marina Piscopo, Luigi Montano, Simonetta Capone
Summary: This study conducted human biomonitoring research on healthy young male population in two contaminated areas in central-southern Italy using a semiconductor gas sensor array trained by SPME-GC/MS. The analysis of Volatile Organic Compounds (VOCs) fingerprinting allowed discrimination of the different contaminations in the two areas and prediction of chemical concentration of identified VOCs by GC/MS.
ENVIRONMENTAL POLLUTION
(2022)
Article
Biochemistry & Molecular Biology
Wiktoria Struck-Lewicka, Beata Karpinska, Wojciech Rodzaj, Antoni Nasal, Bartosz Wielgomas, Michal Jan Markuszewski, Danuta Siluk
Summary: In this study, a thin film solid phase microextraction method (TF-SPME) was developed and optimized for metabolomics profiling of eight steroid compounds from urine samples. The most crucial steps in the process were found to be sample extraction and analyte desorption. The proposed TF-SPME method, coupled with UHPLC-ESI-QTOF/MS, showed acceptable validation parameters and was successfully used for the isolation of steroid hormones from urine samples.
FRONTIERS IN MOLECULAR BIOSCIENCES
(2023)
Article
Engineering, Electrical & Electronic
Abian B. Socorro-Leranoz, Silvia Diaz, Silvia Castillo, Uilian J. Dreyer, Cicero Martelli, Jean Carlos Cardozo da Silva, Itziar Uzqueda, Marisol Gomez, Carlos R. Zamarreno
Summary: This study reports the development of an optical system based on parallel Fiber Bragg Gratings (FBGs) for monitoring the movements of the wrist and fingers. The system consists of reflective FBGs detecting finger movements and a reference FBG located on the wrist, all multiplexed to collect basic hand movements. Experimental results show that the system can monitor hand positions and be used for rehabilitation of patients with neuromotor or post-stroke diseases.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Civil
Amin Atarodi, Hojat Karami, Abdollah Ardeshir, Khosrow Hosseini, David Lampert
Summary: The study aimed to investigate the effects of different factors on scour around spur dikes using the Taguchi method, finding optimal conditions and confirming the prediction accuracy of the method, as well as the impact of flow intensity on collar performance.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF CIVIL ENGINEERING
(2021)
Review
Environmental Sciences
Hossein D. Atoufi, David J. Lampert, Mika Sillanpaa
Summary: The COVID-19 pandemic has had various impacts on the environment, including changes in energy demands, air quality, and plastic pollution. Remote work has increased the carbon footprint of Internet usage, while improper handling of personal protective equipment leads to the release of microplastics into the environment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Lei Huang, Qifeng Gao, Hongwei Fang, Guojian He, Danny Reible, Dianchang Wang, Xinghua Wu
Summary: This study proposed a unified expression for sediment nutrient flux and found that with increasing flow velocity, the controlling mode of the flux changes, leading to a significant increase. Water depth and sediment size indirectly affect the flux exchange at the sediment-water interface.
ENVIRONMENTAL FLUID MECHANICS
(2022)
Letter
Environmental Sciences
Hossein D. Atoufi, David J. Lampert, Mika Sillanpaa
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Thermodynamics
Tianyu Chen, Soraya Honarparvar, Danny Reible, Chau-Chyun Chen
Summary: The study introduces a comprehensive thermodynamic model based on the eNRTL activity coefficient equation for accurate calculation of calcium carbonate scaling in highly saline produced waters. The model is capable of accurately calculating all phase equilibria and calorimetric properties under high temperature and saturation conditions.
FLUID PHASE EQUILIBRIA
(2022)
Article
Biochemistry & Molecular Biology
Jeffrey A. van Santen, Ella F. Poynton, Dasha Iskakova, Emily McMann, Tyler A. Alsup, Trevor N. Clark, Claire H. Fergusson, David P. Fewer, Alison H. Hughes, Caitlin A. McCadden, Jonathan Parra, Sylvia Soldatou, Jeffrey D. Rudolf, Elisabeth M-L Janssen, Katherine R. Duncan, Roger G. Linington
Summary: This paper reports the release of a new version of the Natural Products Atlas database, which includes a large number of new compounds and significant upgrades. In addition to adding detailed descriptions of microbial taxa and chemical ontology terms, manual curation and data integration were carried out to improve the user experience.
NUCLEIC ACIDS RESEARCH
(2022)
Article
Environmental Sciences
Michael Angelo Miranda, Anirban Ghosh, Ghader Mahmodi, Songpei Xie, Madelyn Shaw, Seokjhin Kim, Mark J. Krzmarzick, David J. Lampert, Clint P. Aichele
Summary: Oil and gas production wells generate large volumes of produced water (PW), which is commonly disposed of by injection into deep geological formations. However, due to diminishing global water sources and increasing demand, PW is also considered a valuable resource containing elements like lithium and rare earth elements.
Editorial Material
Chemistry, Multidisciplinary
Francesca Pittino, Juliana Oliveira, Mariana De Almeida Torres, Sabine Fink, Elisabeth M. L. Janssen, Christoph Scheidegger
Summary: Cyanobacteria, also known as blue-green algae, are photosynthetic bacteria that can thrive in various habitats, including extreme ones. They are of significant interest to scientists due to their production of cyanotoxins, which are toxic secondary metabolites that can potentially harm organisms, especially when released into surface waters.
Article
Engineering, Environmental
Abhiram S. P. Pamula, Hamed Gholizadeh, Mark J. Krzmarzick, William E. Mausbach, David J. Lampert
Summary: This study uses satellite imagery to develop a tool for near real-time monitoring of harmful algal blooms (HABs) in reservoirs. The results showed that the random forest regression (RFR) model performed the best in estimating chl-a, turbidity, and phycocyanin concentrations. The study is important for assessing spatial and temporal variations in surface water quality in Oklahoma.
JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION
(2023)
Editorial Material
Engineering, Environmental
Carolin Seller, Laura Varga, Elizabeth Borgardts, Bernadette Vogler, Elisabeth Janssen, Heinz Singer, Kathrin Fenner, Mark Honti
Summary: Identifying the biotransformation potential of chemicals in the aquatic environment is crucial for predicting their fate and managing their hazards. This study compared laboratory simulation studies with field measurements of compound loads in the Rhine river basin and found some differences in absolute values, but reasonable agreement in relative rankings and persistence categories between the two approaches.
Article
Environmental Sciences
Hasti Ziaei, Balaji Rao, Tea V. Wood, Uriel Garza-Rubalcava, Ashkan Alborzi, Huayun Zhou, Paul Bireta, Nancy Grosso, Danny Reible
Summary: The South River in Waynesboro, Virginia is contaminated with mercury due to historical releases from an industrial facility. Two sampling events were conducted in 2015 to assess mercury concentrations in the bank interstitial waters during base flows and after flooding events. The results showed higher mercury concentrations during bank drainage compared to base flow conditions. Laboratory experiments using South River sediments revealed that drainage cycles can result in high mercury leachate from contaminated sediment. A remedial approach involving sediment removal and the placement of biochar and an armoring layer successfully decreased mercury concentrations.
Article
Marine & Freshwater Biology
Mariana de Almeida Torres, Martin R. Jones, Colette vom Berg, Ernani Pinto, Elisabeth M. -L. Janssen
Summary: Cyanobacterial blooms have a global impact on aquatic ecosystems, and their toxins, such as microcystins (MC), are a major concern. However, the ecotoxicological risks, especially non-lethal effects, associated with other co-produced secondary metabolites, remain largely unknown. In this study, we assessed the effects of cyanobacterial extracts from two Brazilian Microcystis strains on the survival, morphological alterations, swimming behavior, and cardiovascular functions of zebrafish. We found that only one strain produced MCs, and we identified other co-produced cyanopeptides using LC-HRMS/MS analysis even in the non-producer strain. Both cyanobacterial extracts caused acute toxicity in zebrafish, with varying severity. Additional decreased locomotor activity and specific adverse effects in zebrafish were observed in response to cyanobacterial metabolites other than MCs. These results highlight the need to further investigate the lethal and sublethal effects of cyanobacterial metabolites, other than MCs, and understand their underlying mechanisms of toxicity. Considering the mixture toxicity of co-produced metabolites is crucial for the ecotoxicological risk assessment of cyanobacterial bloom events, as it allows better prediction of adverse outcomes in fish and other organisms.
AQUATIC TOXICOLOGY
(2023)
Article
Environmental Sciences
Hossein D. Atoufi, David J. Lampert
Summary: Per- and polyfluoroalkyl substances (PFAS) are a class of emerging compounds that cause global health and environmental problems. In this study, a modified polar organic chemical integrative sampler (POCIS) was used to assess the uptake of PFAS from sediments and water. The results showed that the uptake of PFAS from water and sediment can be explained by sampling rate models and mass transport based on external resistance from the sediment layer. The study also observed faster uptake of PFOS compared to PFOA and higher uptake in tanks with combusted soil. Overall, the external mass transport model provided a mechanism to extend the POCIS design for measuring porewater concentrations and sampling releases from sediments.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2023)
Article
Engineering, Multidisciplinary
Amin Atarodi, Hojat Karami, Abdollah Ardeshir, Khosrow Hosseini, David Lampert
Summary: One of the most significant problems faced by hydraulic engineers is the local scouring of in-stream structures. Fractional factorial methods have been used to optimize the design of scour protection methods with fewer experiments and high accuracy. This study investigated the effects of three factors (spur dike angle, riprap size, and riprap extent) on local scouring using Taguchi and grey relational analysis (GRA) methods. The results showed that riprap aprons can reduce scouring depth and move the scouring hole away from the structure.
SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Martin R. Jones, Elisabeth M. L. Janssen
Summary: Cyanobacterial blooms are increasing globally in freshwater systems. A validated online solid phase extraction high performance liquid chromatography-high resolution tandem mass spectrometry method was developed for quantitative monitoring of cyanopeptides in surface waters. This method allows accurate measurement of multiple cyanopeptides and has value in monitoring cyanobacteria in surface waters.
