Review
Environmental Sciences
Jamie M. Dearnley, Charles Killeen, Rebecca L. Davis, Vince P. Palace, Gregg T. Tomy
Summary: This article reviews the metabolism and toxicity of polycyclic aromatic compounds (PACs) in fish and presents various methods for analyzing metabolite-containing bile. Recent environmental monitoring studies demonstrate the utility of this technique in assessing oil spill pollution, establishing baseline exposure, and evaluating pollution in urban waterways.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Correction
Environmental Sciences
Majid Kermani, Tahereh Rahmatinia, Vahide Oskoei, Samira Norzaee, Abbas Shahsavani, Mahdi Farzadkia, Mohammad Hossein Kazemi
Summary: A correction to this paper has been published.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Inorganic & Nuclear
Huimin Zhong, Cong Jiang, Jiahui Zou, Guancheng Zhu, Yanyan Huang
Summary: In this study, CeO2-based porous carbonaceous frameworks (CeO2 PCFs) were used as antioxidant nanozymes to scavenge reactive oxygen species and absorb benzo[a]pyrene. CeO2 PCFs exhibited excellent superoxide dismutase-like and catalase-like activity, effectively eliminating superoxide radical, hydroxyl radical, and hydrogen peroxide. The 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) free radical scavenging assay confirmed the free radical scavenging ability of CeO2 PCFs. Furthermore, CeO2 PCFs with large surface area and porous structure efficiently adsorbed benzo[a]pyrene. The designed CeO2 PCFs can serve as new antioxidant nanozymes for scavenging reactive oxygen species and adsorbing polycyclic aromatic hydrocarbons (PAHs).
INORGANIC CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Yusuke Nakakuki, Takashi Hirose, Hikaru Sotome, Min Gao, Daiki Shimizu, Ruiji Li, Jun-Ya Hasegawa, Hiroshi Miyasaka, Kenji Matsuda
Summary: Helically twisted conductive nanocarbon materials are suitable for optoelectronic and electromagnetic molecular devices on the nanometer scale, showing a large effective conjugation length and ultrafast decay dynamics. The extended π-helicenes achieved a large effective conjugation length through helical fusion, leading to an absorption edge in the near-infrared region.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Xiushang Xu, Amy L. Vonder Haar, Rengo Yoshioka, Qizheng Zhang, Serhii Vasylevskyi, Andrew J. Musser, Akimitsu Narita
Summary: A benzo[rst]pentaphene derivative, BPP-MeOPA, was synthesized and characterized by NMR and single-crystal X-ray analysis. Investigation of its photophysical properties, including transient absorption spectroscopy, revealed improved absorption and emission features from an S-1 state with excitonic and charge-transfer character by introducing MeOPA groups.
CHEMICAL COMMUNICATIONS
(2023)
Review
Environmental Sciences
Meng Qiao, Weixiao Qi, Huijuan Liu, Jiuhui Qu
Summary: Oxygenated polycyclic aromatic hydrocarbons (OPAHs) have higher concentrations and toxicity in water environments, posing significant ecological risks to surface water ecosystems.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Chemistry, Organic
Yushi Ohno, Shogo Ando, Daisuke Furusho, Ryoyu Hifumi, Yuuya Nagata, Ikuyoshi Tomita, Shinsuke Inagi
Summary: Here, a facile and selective synthesis of cationic azatriphenylene derivatives was achieved through electrochemical intramolecular cyclization, where the key step involves atom-economical C-H pyridination without a transition-metal catalyst or an oxidant. This proposed strategy provides a practical approach for introducing cationic nitrogen (N (+)) into pi-electron systems, thus expanding the molecular design of N (+)-doped polycyclic aromatic hydrocarbons.
Review
Environmental Sciences
Pablo Antonio Moreno-Perez, Marivel Hernandez-Tellez, Arely Bautista-Galvez
Summary: The study evaluated the environmental status of the Great Mayan Aquifer beneath the Yucatan Peninsula, Mexico, and found that the majority of cenotes are contaminated with various pollutants. Over 92% of the cenotes detected one or more classes of pollutants. Only a small number of cenotes were reported to be free of the target pollutants.
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2021)
Article
Chemistry, Physical
Thomas Liu, Baptiste Carles, Christine Elias, Claire Tonnele, Daniel Medina-Lopez, Akimitsu Narita, Yannick Chassagneux, Christophe Voisin, David Beljonne, Stephane Campidelli, Loic Rondin, Jean-Sebastien Lauret
Summary: In this study, we conducted single-molecule spectroscopy at cryogenic temperatures to investigate the optical properties of graphene quantum dots (GQDs). We found that temperature has an effect on the spectral characteristics of GQDs, and we used density functional theory calculations to explain these observations. Additionally, we discovered that the vibrational features can serve as a unique fingerprint for identifying GQDs.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Thermodynamics
Kevin Gleason, Francesco Carbone, Andrew J. Sumner, Brian D. Drollette, Desiree L. Plata, Alessandro Gomez
Summary: This study introduces a novel technique for quantitatively measuring gases and particles in flame environments and reveals the molecular growth process in soot formation. The findings suggest that only one and two-ring aromatic compounds can contribute to soot nucleation.
COMBUSTION AND FLAME
(2021)
Article
Environmental Sciences
Tatiana Azhogina, Marina Sazykina, Elizaveta Konstantinova, Ludmila Khmelevtsova, Tatiana Minkina, Elena Antonenko, Svetlana Sushkova, Margarita Khammami, Saglara Mandzhieva, Ivan Sazykin
Summary: To better understand the dissemination of antibiotic resistance genes (ARGs) in natural microbial communities, researchers have found a close positive correlation between bioaccessible polycyclic aromatic compounds (PAHs) and ARGs in different types of soils. This correlation is particularly strong in soils from protected areas, agricultural purposes, and hospitals. The diverse composition of microbial communities in these soils may greatly facilitate this process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Kristen M. Prossner, Ellen Harvey, Michael A. Unger
Summary: Crassostrea virginica is a widely used bivalve species for biomonitoring organic pollutants in aquatic environments. This study investigates the differences in polycyclic aromatic hydrocarbon (PAH) kinetics between wild oysters, triploid and diploid cultured oysters. The findings suggest that equilibration time and internal partitioning of contaminants play important roles in the observed differences.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Chemistry, Analytical
Chen Yu, Fengshou Wu, Xiaogang Luo, Juan Zhang
Summary: A porphyrin-based COF was synthesized and applied for the headspace solid-phase microextraction of PAHs, with optimized parameters leading to a wide linear range, low detection limits, and excellent repeatability. The method showed satisfactory recoveries of PAHs in water and soil samples, indicating its potential for environmental analysis.
MICROCHEMICAL JOURNAL
(2021)
Article
Engineering, Environmental
Jiaxing Lu, Jian Zhang, Huijun Xie, Yuming Jing, Mingde Ji, Zhen Hu
Summary: In this study, a novel wastewater treatment process combining sequencing batch reactor, constructed wetland and microalgal membrane photobioreactor (BCM process) was proposed. The process achieved satisfactory removal of polycyclic aromatic hydrocarbons (PAHs) and their substituted derivatives (SPAHs), and significantly reduced bacterial toxicity and genotoxicity. Microalgae played an important role in ensuring water security.
Article
Engineering, Environmental
Zhiyang Lu, Weijun Tian, Surong Zhang, Meile Chu, Jing Zhao, Bingkun Liu, Kun Yang, Huimin Cao, Zhuo Chen
Summary: This study investigated the spatiotemporal distribution, source, and ecological risk of PAHs and SPAHs in surface sediments in Laizhou Bay. The results showed seasonal differences in concentrations of PAHs and SPAHs and a spatial distribution trend of estuary > coast > offshore. Combustion sources, including petroleum, coal, and biomass, were identified as the main contributors to PAHs and SPAHs. The risk level of PAHs was low-to-moderate, while SPAHs posed a moderate-to-high ecological risk.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Analytical
Justina A. Ugwah, Dr Niall Savage, Dr Walter Messina, Dr Brian D. O. Donnell, Dr Martin J. O'Sullivan, Dr Eric J. Moore
Summary: A gold dual-microelectrode bioimpedance sensor was designed, fabricated, and validated for potential application in cancer diagnostics. The sensor successfully differentiated between different tissue types and provided novel data for cancer diagnostics. Testing on meat and a gel/lard phantom demonstrated excellent electrochemical recording potential of the sensor.
Article
Chemistry, Analytical
Yineng Wang, Xi Cao, Walter Messina, Anna Hogan, Justina Ugwah, Hanan Alatawi, Ed van Zalen, Eric Moore
Summary: Capillary electrochromatography (CEC) combines liquid chromatography (LC) and capillary electrophoresis (CE), providing rapid separations, high efficiency, and high selectivity. The use of capacitively coupled contactless conductivity detection (CD-D-4) allows for contactless electrode configuration, preventing contamination.
Article
Chemistry, Medicinal
S. Analakkattillam, V. K. Langsi, J. P. Hanrahan, E. Moore
Summary: A simple and robust HPLC method was developed for dissolution studies of CBD in hemp oil products for the first time, with in-house validated assay test and comparison of dissolution profiles from products purchased in the US and Europe. The study also investigated the effect of CBD release percentage on agitation speed and dissolution runtime.
JOURNAL OF PHARMACEUTICAL SCIENCES
(2021)
Article
Chemistry, Analytical
Netsirin Gissawong, Supalax Srijaranai, Suthasinee Boonchiangma, Pikaned Uppachai, Kompichit Seehamart, Sakwiboon Jantrasee, Eric Moore, Siriboon Mukdasai
Summary: A highly sensitive and novel electrochemical sensor has been developed for the detection of ciprofloxacin by combining gold nanoparticles deposited with waste coffee ground activated carbon and supramolecular solvent. The sensor showed good electrocatalytic activity and achieved high recoveries and low relative standard deviations in milk samples. The developed method was successfully applied in the analysis of pharmaceutical formulations and compared with high-performance liquid chromatography.
Article
Chemistry, Analytical
Thanih Balbaied, Eric Moore
Summary: The study proposed a method using biosensor-based strategies for real-time monitoring of ALP release from human colon cancer cells, facilitating understanding of cancer progression and emerging diseases. Results showed a correlation between cell response and changes in impedance magnitude and current, influencing cell morphology and viability. The developed method represents an advance over current techniques and may contribute to microfluidic testing development for small-scale techniques.
ANALYTICAL LETTERS
(2022)
Article
Chemistry, Analytical
Emma O'Sullivan-Carroll, Stewart Howlett, Carmel Pyne, Paul Downing, Ana Rafael, Marguerite Lynch, Anna Maria Hogan, Eric J. Moore
Summary: The detection of pharmaceuticals in surface and wastewater is becoming increasingly important for environmental monitoring due to the devastating effects caused by pharmaceutical release. Capillary electrophoresis coupled with solid-phase extraction provides effective detection of pharmaceutical contaminants in water.
ANALYTICAL LETTERS
(2022)
Article
Biochemical Research Methods
Hanan Alatawi, Anna Hogan, Ibtihaj Albalawi, Emma O'Sullivan-Carroll, Yineng Wang, Eric Moore
Summary: In this study, a simple and fast method using capillary electrophoresis and microchip electrophoresis with capacitively coupled contactless conductivity detection was developed for the detection and separation of paracetamol and its hydrolysis product. The method showed rapid analysis time, high efficiency and precision, low cost, and reduced consumption of reagents. This microchip system proved to be an excellent analytical technique for fast and reliable environmental applications.
Article
Chemistry, Analytical
Samia Alsefri, Thanih Balbaied, Eric Moore
Summary: Polychlorinated biphenyls (PCBs) are highly toxic synthetic chemical compounds that can cause serious ailments to living organisms. The development of an electrochemical immunosensor for PCB detection discussed in this paper offers potential for rapid sample screening in a portable, disposable format for effective control and prevention of PCBs in the environment.
Article
Biochemical Research Methods
Hanan Alatawi, Anna Hogan, Ibtihaj Albalawi, Emma O'Sullivan-Carroll, Samia Alsefri, Yineng Wang, Eric Moore
Summary: A simple and rapid method using CE and microchip electrophoresis has been developed for the separation of four nonsteroidal anti-inflammatory drugs (NSAIDs) in environmental samples. The method showed excellent repeatability, good sensitivity, low cost, high sample throughputs, portable instrumentation, and extremely lower reagent and sample consumption.
Article
Biochemistry & Molecular Biology
Apu Sarwar, Conor McSweeney, Mark Smith, Eric Moore
Summary: This study aims to identify two critical components required for pharmaceutical cleaning verification when an FTIR is used: the number of scans required per hard-to-clean location, and the limit of quantification (LOQ) of the FTIR instrument when measuring surface contamination. The current practice in pharmaceutical manufacturing does not require multiple samples, but this study suggests that collecting a sufficient number of samples is necessary to ensure measurement results are close to the true value. Furthermore, the study addresses the complexity in calculating the LOQ when dealing with complex experimental data.
Article
Chemistry, Analytical
Ibtihaj Albalawi, Hanan Alatawi, Samia Alsefri, Eric Moore
Summary: In this study, a new in situ synthesis approach was employed to detect carbaryl species using a disposable electrode, which showed superior sensitivity and selectivity for measuring carbaryl concentration in river and tap water samples.
Article
Multidisciplinary Sciences
Sandhyarani Analakkattillam, Victor K. Langsi, John P. Hanrahan, Eric Moore
Summary: A simple and validated RP-HPLC method has been developed for determining the levels of cannabidiol and tetrahydrocannabinol in hemp oil infused products. The method meets regulatory requirements and can be used for regular quality control and assay purposes.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Analytical
Samia Alsefri, Thanih Balbaied, Hanan Alatawi, Ibtihaj Albalawi, Anna Hogan, Eric Moore
Summary: PCBs have been detected in soil due to industrial pollution in the past two decades, despite being banned. Therefore, it is crucial to develop an analytical method to identify and monitor the sources of PCBs. This study presents a gas chromatography with mass spectrometry technique using the QuEChERS method to effectively extract and detect PCBs in soil samples. The method was found to be simple, sensitive, efficient, and environmentally friendly.
Article
Chemistry, Analytical
Apu Sarwar, Conor McSweeney, Joep Timmermans, Eric Moore
Summary: Preventing cross-contamination is a regulatory requirement in the pharmaceutical manufacturing industry. The use of real-time infrared spectroscopy can accurately measure surface cleanliness in pharmaceutical manufacturing.
Article
Chemistry, Analytical
Ibtihaj Albalawi, Anna Hogan, Hanan Alatawi, Eric Moore
Summary: This study introduces a simple, low-cost, sensitive, and environmentally friendly approach for simultaneous electrochemical determination of lead and cadmium using a commercial screen-printed gold electrode with Nafion and in situ bismuth film. The developed sensor showed high sensitivity and good repeatability with detection limits below EPA limits, making it suitable for analysis of river and tap water samples. By using anodic stripping square voltammetry, cyclic voltammetry, and scanning electron microscopy, the electrochemical properties and composite film characteristics were investigated.
SENSING AND BIO-SENSING RESEARCH
(2021)
