Article
Biochemical Research Methods
Slavka Nagyova, Peter Tolgyessy, Svetlana Hrouzkova
Summary: A method for determining FIP pesticide and its major degradates in water has been developed, which is environmentally friendly and suitable for screening and monitoring analytes in related samples.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Biochemical Research Methods
Peter Tolgyessy, Slavka Nagyova
Summary: An environmentally friendly method for determining TBT in water was developed. The method addressed the issue of reducing blank values and optimizing the extraction conditions, and was evaluated using various water samples. The method showed good performance and is suitable for monitoring and evaluation of surface waters.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Food Science & Technology
Sandra Marin-San Roman, Jose Miguel Carot-Sierra, Itziar Saenz de Urturi, Pilar Rubio-Breton, Eva P. Perez-Alvarez, Teresa Garde-Cerdan
Summary: This study optimized and compared the techniques of stir bar sorption extraction (SBSE) and multi-stir bar sportive extraction (mSBSE) for analyzing the volatile composition of grape must. The results showed that SBSE provided higher extraction of volatile compounds than mSBSE. The best conditions for SBSE were determined to be headspace extraction, 500 rpm speed, 6 hours extraction time, 60 degrees C temperature, and sequential NaCl addition.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Biochemical Research Methods
Jiaqi Liang, Felix Stoeppelmann, Zhigang Lu, Ann-kathrin Nedele, Yanyan Zhang
Summary: Stir bar sorptive extraction is effective for trapping odorants, and this study investigated the relationship between desorption conditions and efficiency for different odorants. Four machine learning models were trained using a dataset of four desorption conditions and physicochemical properties. The Random Forest model performed the best, and its prediction value was validated using a dataset of new odorants.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Biochemical Research Methods
Mathieu Galmiche, Adeline Colin, Marie-Christelle Clavos, Christelle Pallez, Christophe Rosin, Xavier Dauchy
Summary: Nitroaromatic compounds were used in explosives during world wars and may still be present in the environment. A method for determining 28 nitroaromatic compounds in water was developed using stir bar sorptive extraction (SBSE), enabling sensitive quantification. The study detected up to 16 different nitroaromatic compounds in groundwater samples, with 2,4-DNT and 1,3-DNB showing the highest concentrations.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Review
Chemistry, Analytical
Sayyed Hossein Hashemi, Massoud Kaykhaii
Summary: This article reviews the various applications, advantages and disadvantages of nano-coatings as media for micmextraction by stir bar, analyzing the critical evaluation of currently available methods. It is shown that using nano-coatings as coatings can improve the efficiency of stir bar sorption extraction.
Review
Chemistry, Analytical
Victor Vallez-Gomis, Jose Grau, Juan L. Benede, Dimosthenis L. Giokas, Alberto Chisvert, Amparo Salvador
Summary: SBSDME is a novel microextraction technique that combines the principles of SBSE and DSPE, dispersing magnetic (nano)material into the sample solution through horizontal stirring, leading to improved extraction efficiency. It offers advantages of shorter extraction times and simplified processing in a single approach.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Aitor Sorribes-Soriano, Francesc Albert Esteve-Turrillas, Sergio Armenta, Jose Manuel Herrero-Martinez
Summary: In this study, a molecularly imprinted polymer (MIP)-coated stir bar for recognizing diazepam was prepared. The MIP was synthesized using methacrylic acid as a functional monomer, diazepam as a template, ethylene glycol dimethacrylate as a crosslinker, and azobisisobutyronitrile as an initiator. The resulting polymer-modified stir bar was characterized and used in a stir-bar-sorptive-extraction (SBSE) method in combination with ion mobility spectrometry (IMS) or ultra-high performance liquid chromatography coupled to mass spectrometry (UHPLC-MS/MS). The MIP-SBSE coupled with UHPLC-MS/MS showed satisfactory results in quantifying traces of diazepam in water samples, while the MIP-SBSE using IMS exhibited high sensitivity for rapid screening of the compound in different matrices.
MICROCHEMICAL JOURNAL
(2023)
Review
Biochemical Research Methods
Man He, Yuxin Wang, Qiulin Zhang, Lijuan Zang, Beibei Chen, Bin Hu
Summary: This review summarizes the recent progress of stir bar sorptive extraction (SBSE) in the past six years, focusing on the preparation methods and new materials for coated stir bars. The discussion also includes the development and prospects of SBSE as an efficient sample pretreatment technique in real sample analysis.
JOURNAL OF CHROMATOGRAPHY A
(2021)
Article
Chemistry, Analytical
Cristian Azorin, Juan L. Benede, Alberto Chisvert, Amparo Salvador
Summary: An analytical method for the determination of trace levels of tetrahydrocannabinol (THC) in cosmetics is presented. The method, combining stir bar sorptive dispersive microextraction (SBSDME) with liquid chromatography-tandem mass spectrometry (LC-MS/MS), is sensitive, selective, and overcomes some limitations of previous methods. It was successfully applied to analyze THC in ten commercially-available cosmetic samples of different matrices.
Article
Food Science & Technology
Olga Vyviurska, Ha Anh Thai, Dominika Garancovska, Adriano A. Gomes, Ivan Spanik
Summary: Multi-SBSE is a viable alternative for sample preparation, improving data quality and enabling the identification of the geographical origin of botrytized wines. Multivariate optimization and PCA analysis were used to achieve discrimination of the wines.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Food Science & Technology
Rayco Guedes-Alonso, Zoraida Sosa-Ferrera, Jose J. Santana-Rodriguez, Abuzar Kabir, Kenneth G. Furton
Summary: In this study, the FPSE technique was used for the extraction of hormones from raw milk, achieving simplified sample handling and green alternative to traditional extraction methods. Through optimization, 15 hormones were successfully analyzed with low detection limits in the samples. The presence of lactose was found to affect the efficiency of hormone extraction in the experiment.
Article
Chemistry, Applied
David Munoz-Rodriguez, Yamile Perez-Padilla, Alejandro Avila-Ortega, Jesus Alberto Barron-Zambrano, Cristian Carrera-Figueiras
Summary: A translucent coating based on polydimethylsiloxane and aminopropyltriethoxysilane was prepared by a sol-gel method for stir bar sorptive extraction, successfully extracting and preconcentrating organic compounds from aqueous and organic samples. The coating was characterized as homogeneous, relatively polar, and thermally and chemically stable.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2021)
Article
Chemistry, Analytical
Keran Su, Christina Shu Min Liew, Yunle Huang, Rui Min Vivian Goh, Aileen Pua, Jingcan Sun, Kim Huey Ee, Shao Quan Liu, Benjamin Lassabliere, Lionel Jublot, Bin Yu
Summary: In this study, an improved headspace-stir bar sorptive extraction was developed to extract volatile compounds with different polarities in a short time. Extraction conditions were selected and optimized using response surface methodology, and the addition of a cold stir bar further shortened the extraction time to 1 minute. The effect of different ethanol concentrations and salt additions on extraction efficiency was also studied, and 10% ethanol concentration with no salt addition provided the highest extraction efficiency for most compounds. The feasibility of the high-throughput extraction condition was verified using volatile compounds spiked in a honeybush infusion.
Article
Chemistry, Analytical
Peige Qin, Lizhen Han, Xiaowan Zhang, Mengyuan Li, Dan Li, Minghua Lu, Zongwei Cai
Summary: A magnetic porous carbon material with Fe3C nanoparticles encapsulated in porous carbon was prepared using MIL-101(Fe) as a carbon and Fe source through one-pot pyrolysis under N-2 atmosphere. The MPC-900 material showed the highest extraction ability for sulfonamides. By systematically studying the main parameters affecting the extraction process, favorable linearity and detection limits for sulfonamides were obtained. This method can effectively extract ultra-trace compounds in complex sample matrices.
Article
Environmental Sciences
Zhen Liu, Emily C. Mills, Madjid Mohseni, Benoit Barbeau, Pierre R. Berube
Summary: Biofiltration using ion exchange resins (BIEX) as supporting media shows superior performance in removing natural organic matter (NOM) compared to conventional biological activated carbon (BAC). Temperature and empty bed contact time (EBCT) have a significant impact on NOM removal, and must be considered simultaneously for efficient biofiltration. Temperature has a greater influence on BAC filtration than BIEX filtration, with higher temperatures and longer EBCTs leading to improved NOM removal.
Article
Engineering, Environmental
Min Liu, Gabriel Munoz, Sung Vo Duy, Sebastien Sauve, Jinxia Liu
Summary: The occurrence of 93 classes of per- and polyfluoroalkyl substances (PFASs) was investigated at AFFF-impacted sites of Canadian airports. PFAS profiles, loads, and spatial trends were site-specific, influenced by AFFF use history. Zwitterionic and cationic compounds composed a large percentage in surface soil samples but a relatively low percentage in groundwater samples. This study provides critical data to support developing new priority analyte lists and integrating TOP assay for comprehensive PFAS monitoring at AFFF-impacted sites.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Review
Engineering, Environmental
Fuhar Dixit, Karl Zimmermann, Rahul Dutta, Niranjana Jaya Prakash, Benoit Barbeau, Madjid Mohseni, Balasubramanian Kandasubramanian
Summary: MXenes are a new type of 2D material gaining attention for their use in environmental, chemical, and medical applications. They exhibit high performance and efficiency in water treatment, wastewater treatment, and desalination applications, outperforming conventional materials in various fields.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Farhad Jalili, Hana Trigui, Juan Francisco Guerra Maldonado, Sarah Dorner, Arash Zamyadi, B. Jesse Shapiro, Yves Terrat, Nathalie Fortin, Sebastien Sauve, Michele Prevost
Summary: The impact of oxidation on mitigating cyanobacteria and cyanotoxins in drinking water treatment sludge was studied. Results showed that KMnO4 and H2O2 reduced cell counts and cyanotoxin levels, but stagnation promoted cell growth. These findings suggest that alternative approaches should be considered for managing cyanobacteria and cyanotoxins in sludge.
Article
Environmental Sciences
C. D. Metcalfe, S. Bayen, M. Desrosiers, G. Munoz, S. Sauve, V Yargeau
Summary: Endocrine disrupting chemicals (EDCs) are a diverse group of chemicals that require sensitive and varied analytical methods to monitor their presence in the environment. Only environmental matrixes with a clear link to endocrine effects are included, and emerging methods and advanced instruments for sample preparation are also discussed.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
Fuhar Dixit, Gabriel Munoz, Mahboubeh Mirzaei, Benoit Barbeau, Jinxia Liu, Sung Vo Duy, Sebastien Sauve, Balasubramanian Kandasubramanian, Madjid Mohseni
Summary: This study investigated the removal of selectfluorotelomer zwitterionic per- and polyfluoroalkyl substances (PFAS) from natural waters using various resins and Ti3C2MXenes. The results showed that Ti3C2MXenes had the highest removal efficiency and could capture over 75% of the influent zwitterionic PFAS. Ti3C2MXenes also exhibited efficient regeneration and UV-sulfite systems showed promising potential for the treatment of zwitterionic PFAS concentrates.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Ken Goeury, Sung Vo Duy, Gabriel Munoz, Michele Prevost, Sebastien Sauve
Summary: This study evaluated the suitability of automated off-line solid phase extraction liquid chromatography tandem mass spectrometry for the determination of EPA-priority endocrine-disrupting compounds in environmental water matrixes. Factors that may influence the analytical performance were assessed, and various materials and protocol variations were tested. The method showed acceptable extraction efficiencies and reliable limits of detection for the target compounds in different water samples. Method validation confirmed the accuracy and precision of the method through linearity, accuracy, and precision tests in reagent water and matrix-matched extracted calibrants.
Review
Food Science & Technology
Farhad Jalili, Saber Moradinejad, Arash Zamyadi, Sarah Dorner, Sebastien Sauve, Michele Prevost
Summary: This article systematically evaluates the methods of treating cyanobacteria and cyanotoxins in drinking water and proposes a decision framework for managing these issues in treatment plants and sludge. Pre-oxidation can improve the efficiency of cyanobacteria treatment, but oxidation treatment is not effective for sludge containing cyanobacteria.
Article
Environmental Sciences
Gabriel Munoz, Laurie Mercier, Sung Vo Duy, Jinxia Liu, Sebastien Sauve, Magali Houde
Summary: The research investigates the presence of various PFAS in the food web of the St. Lawrence River and discovers emerging PFAS as well. It also finds differences in contamination profiles of PFAS among different biotic samples and identifies some PFAS as highly bioaccumulative and biomagnifying.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Sebastien Sauve, Benoit Barbeau, Maryse F. Bouchard, Marc-Andre Verner, Jinxia Liu
Summary: Water quality regulations for PFAS are in turmoil due to toxicological evidence of human health effects. Countries have different approaches to regulate PFAS in drinking water, focusing on specific targets or larger groups of PFAS compounds. This poses regulatory challenges and may result in incoherent regulations across jurisdictions. It is important to ensure coherent regulations and balanced remediation approaches to reduce overall exposure.
Article
Environmental Sciences
Termeh Teymoorian, Gabriel Munoz, Sung Vo Duy, Jinxia Liu, Sebastien Sauve
Summary: Per- and polyfluoroalkyl substances (PFAS) used in various industrial applications are pollutants of concern for the environment and human health. This study reviews the analytical methods used for the detection and quantification of PFAS in drinking water, discussing the challenges and pitfalls encountered in the process. The study also evaluates the performance of these methods and provides guidelines for health advisory levels of PFAS in tap water.
Article
Engineering, Chemical
Yaser Rasouli, Raphael Maltais-Tariant, Benoit Barbeau, Sigrid Peldszus, Caroline Boudoux, Dominique Claveau-Mallet
Summary: This study investigates the performance of a hybrid process combining biological ion exchange resin and gravity-driven ceramic membrane filtration for drinking water treatment. The results show that this hybrid process can increase the flux and improve the permeate quality of the membrane.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Environmental
R. Daghrir, N. Ouerd, L. M. Patterson-Fortin, J. Boutros, S. Vo Duy, S. Sauve, S. Sauve, M. W. Gaultois, R. Smith
Summary: This article introduces an advanced oxidation system (AOS) technology that can effectively remove pharmaceutical residues from municipal wastewater and promote mineralization. The results of the pilot-scale reactor experiments showed that the AOS technology, operating in continuous mode, can remove most of the common pharmaceuticals at a lower cost, making it a viable tertiary treatment method.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yanyan Zhang, Joann K. Whalen, Chen Cai, Sung Vo Duy, Gabriel Munoz, Sebastien Sauve
Summary: Microcystins produced by toxic cyanobacterial blooms pose a threat to water quality. This study conducted a quantitative meta-analysis to evaluate the efficacy of 46 water treatment methods in removing microcystins. The results identified the most effective treatment options for removing these toxins.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Kristin J. Painter, Jason J. Venkiteswaran, Dana F. Simon, Sung Vo Duy, Sebastien Sauve, Helen M. Baulch
Summary: This study investigates cyanobacterial blooms in Buffalo Pound Lake using microscopy and indicator species analysis. It identifies two key bloom phases and their associated metabolites. Additionally, a potentially disruptive autumn bloom is discovered, which has implications for water treatment.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2022)
Article
Chemistry, Analytical
Qian Wu, Li Tian, Xiangyu Shan, Huiling Li, Chao Li, Juan Lu
Summary: A novel ECL sensor was developed by modifying Fe3CuO4-Ru(bpy)3+ and GO-CdS@ZnS on the electrode for the detection of permethrin. The sensor exhibited high sensitivity and a wide detection range.
Article
Chemistry, Analytical
Tingting Gong, Lei Liao, Bingying Jiang, Ruo Yuan, Yun Xiang
Summary: In this study, a fluorescent biosensing system for high sensitivity detection of MT was established using a new Ag+-stabilized DNA triplex probe (Ag+-SDTP) combined with catalytic hairpin assembly (CHA) and CRISPR/Cas12a signal enhancements. The sensing method is able to selectively detect MT from other non-specific molecules and can achieve low level detection of MT in diluted human serums, demonstrating its potential for monitoring disease-specific MT biomarker at trace levels.
Article
Chemistry, Analytical
Estrella Sanz Rodriguez, Kyra Wood, Paul R. Haddad, Brett Paull
Summary: This study presents a simple, rapid, and reliable method for determining boron in aqueous solutions using suppressed ion chromatography coupled to electrospray ionisation-triple quadrupole mass spectrometry. The method achieved a low limit of detection and demonstrated excellent analytical performance.
Article
Chemistry, Analytical
Aline Cournut, Paul Moustiez, Yannick Coffinier, Christine Enjalbal, Claudia Bich
Summary: Alzheimer's disease is a major cause of senile dementia and is characterized by the aggregation of neurofibrillary tangles and amyloid plaques in the brain. The A beta 1-42 peptide is considered the primary cause of neurotoxicity due to its insolubility and subsequent aggregation. A beta 1-42 and A beta 1-40 have been identified as relevant biomarkers for AD diagnosis, and SurfaceAssisted Laser Desorption/Ionization Mass Spectrometry (SALDI-MS) was used to monitor the A beta 1-42/A beta 1-40 ratio without prior sample treatment.
Article
Chemistry, Analytical
Dotse Selali Chormey, Buse Tugba Zaman, Tulay Borahan Kustanto, Sezin Erarpat Bodur, Suleyman Bodur, Elif Ozturk Er, Sezgin Bakirdere
Summary: This review provides an overview of the harmful effects of endocrine disrupting chemicals (EDCs) on human health and introduces the methods for analyzing EDCs. Recent research has focused on using green chemicals, such as deep eutectic solvents (DESs), for microextraction to ensure environmental safety.
Article
Chemistry, Analytical
Yan Zhang, Renfeng Xu, Jingjing Wu, Zhenghong Zhang, Yuhuang Wang, Hongqin Yang, Sheng Zhang
Summary: This study visualized the pore-like structures in prostate cancer cell membranes after treatment with the anticancer drug paclitaxel, demonstrating its mechanism of action related to oxidative damage.
Article
Chemistry, Analytical
Chihong Ma, Qin Zhou, Jinjin Shi, Hua Gao, Di Huang, Huimin Xue, Han Wang, Zhenzhong Zhang, Sen Yang, Junli Zhang, Kaixiang Zhang
Summary: We developed a CRISPR-empowered electrochemical biosensor, named PER-E-CRISPR, for amplification-free and sensitive detection of miR-21. The biosensor combines the advantages of CRISPR/Cas13a and primer exchange reaction (PER) for target amplification. Under optimized conditions, the PER-E-CRISPR assay exhibits a linear range from 10-13 to 10-7 M and a limit of detection of 30.2 fM. The biosensor shows excellent performance in actual plasma, indicating promising prospects for miRNA detection in molecular diagnosis.
Article
Chemistry, Analytical
Gang Liang, Jie Zhao, Yufei Gao, Tao Xie, Jianhui Zhen, Ligang Pan, Wenwen Gong
Summary: Molecular docking (MD) analysis is widely used for studying the interaction between aptamers and small molecules. This study established steady-state aptamers of tertiary structures (SATS) using specific aptamers of tetracycline antibiotics as docking models. Molecular docking results revealed multiple binding sites in the SATS of aptamers, with significant variations in binding free energy (BFE) and docking score (DS). The study also proposed a method for MD analysis based on SATS, providing insights into binding mode and predicting binding sites.
Article
Chemistry, Analytical
Yixuan Xu, Changchang Teng, Huiping Dang, Dalong Yin, Lifeng Yan
Summary: Stable organic radical molecules with high NIR fluorescence quantum efficiency have been synthesized and encapsulated into nanoparticles, which show great potential for both photodynamic therapy (PDT) and photothermal therapy (PTT) of tumors.
Article
Chemistry, Analytical
Yu Su, Dandan Yang, Yanjie Wang, Jie Ding, Lan Ding, Daqian Song
Summary: In this study, a highly selective molecularly imprinted polymer Cu-MIPs@CS was designed and synthesized for bisphenol A (BPA). Cu-MIPs@CS showed significantly enhanced imprinting factor and selective factor towards BPA compared to MIPs@CS. It also exhibited superior discrimination ability between BPA and its structural analogue. Additionally, Cu-MIPs@CS were successfully applied as a solid phase extraction adsorbent for the determination of BPA in drinking water samples.
Article
Chemistry, Analytical
Yi Qiao, Qiongdan Zhang, Yukun He, Tianguang Cheng, Jing Tu
Summary: Single cell heterogeneity plays an important role in many biological phenomena, and distinguishing cells with specific mutations is beneficial for clinical diagnosis and drug screening. This study introduces a gel plate platform that can distinguish cell types based on their phenotypes, with low equipment requirement. The gel platform has potential in point-of-care circumstances and single-cell stimulation responses that prioritize efficiency and simplicity.
Article
Chemistry, Analytical
Chengke Wang, Shuyang Sun, Ping Wang, Huawei Zhao, Wenling Li
Summary: The food safety of aquatic products is a global concern. Nanotechnology-based analyses have advantages in the detection of bacteria, metal ions, and small molecule contaminants. This review summarizes the recent advances in biosensing strategies for aquatic products and highlights the application of nanomaterials, lateral flow-based biosensors, surface-enhanced Raman scattering, microfluidic chips, and molecular imprinting technologies.
Article
Chemistry, Analytical
Liping Zhu, Zeng Tang, Xuemei Zhang, Li Zhu, Tian Meng, Linying Yu, Ting Xiao, Shasha Lu, Xiaoli Xiong, Xiurong Yang
Summary: A sensitive off-on electrochemiluminescence DNA sensor was developed using Exo III-assisted cascade amplification system. The sensor achieved high selectivity and ultra-high sensitivity in detecting target DNA by utilizing ECL and SPR effects. This study provides a new perspective for designing highly sensitive and programmable ECL biosensors.
Article
Chemistry, Analytical
Tong Li, Mengxu Sun, Suping Xia, Ting Huang, Rong-Tian Li, Chunrong Li, Zong Dai, Jin-Xiang Chen, Jun Chen, Nuan Jia
Summary: Here, we developed a binary system based on DNA tetrahedron and fluorogenic RNA aptamers for highly specific and label-free mRNA imaging in living cells. This system achieved high specificity label-free detection of nucleic acids with a detection limit of 1.34 nM. The method has potential applications in early disease diagnosis and new drug development.
Article
Chemistry, Analytical
Yao Zhao, Shu Zhang, Wang Yao, Yuxuan Zhu, Jing Qian, Juan Yang, Nianjun Yang
Summary: A new hierarchical nanostructured composite with high conductivity and catalytic activity is synthesized. The sensor exhibits significant catalytic effect and high sensitivity for monitoring the environmental endocrine disruptor bisphenol A (BPA).
