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.
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
Engineering, Environmental
Youda Huang, Bin Wang, Yonggang Yang, Shan Yang, Meijun Dong, Meiying Xu
Summary: The study showed that connecting cable bacteria pathways significantly increased the downward migration of pyrene, indicating their role in facilitating pyrene migration. Filamentous-motile microorganisms demonstrated strong adsorption ability for pyrene, with cable bacteria playing a crucial role in the process.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
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)
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)
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, Organic
Yan-Ying Wu, Yi-Lin Wu, Cheng-Lan Lin, Hung-Cheng Chen, Yao-Yuan Chuang, Chih-Hsien Chen, Chih-Ming Chou
Summary: A strategy for the synthesis of dibenz-[a,j]-anthracenes (DBAs) from cyclohexa-2,5-diene-1-carboxylic acids is presented. The method involves sequential C-H olefination, cycloaddition, and decarboxylative aromatization, leading to regioselective ring formation and functional group introduction.
Review
Food Science & Technology
Valentina Bertoz, Giorgia Purcaro, Chiara Conchione, Sabrina Moret
Summary: PAHs are environmental and processing contaminants that are widespread and may contaminate vegetable oils. Due to their carcinogenic and toxic effects, surveillance schemes and mitigation strategies are needed to monitor human exposure to PAHs. Edible oils, particularly olive oil, may contain unsafe levels of these compounds.
Article
Chemistry, Analytical
Xinzhong Zhang, Jing Yang, Xuemei Wang, Chenxi Li, Tao Peng, Qian Miao, Xinzhen Du, Xiaoquan Lu
Summary: The analysis of toxic substances in food, specifically 16 polycyclic aromatic hydrocarbons (PAHs) in takeaway meal boxes, has been studied using a molecularly imprinted column coupled to gas chromatography-triple quadrupole tandem mass spectrometry method (MIC-GC-MS/MS). Different sample pretreatment techniques were compared to optimize the extraction process, and the effects of food types and storage conditions on PAH migration were studied. The results showed high sensitivity and good reproducibility, making this method suitable for determining PAHs in food contact materials. The migration test revealed that PAH migration in takeaway meal boxes is closely related to food type, contact temperature, and contact time within a certain range.
Article
Food Science & Technology
Holly Ekner, Kristian Dreij, Ioannis Sadiktsis
Summary: Polycyclic aromatic hydrocarbons (PAHs) are organic compounds produced from incomplete combustion, posing health risks to humans; olive oil contains various PAHs, with a high content of low molecular weight PAHs likely influenced by diesel exhaust and biomass combustion; research indicates that diesel exhaust and biomass combustion are major sources of PAHs in olive oil, suggesting air quality may impact pollution levels in olive oil.
Article
Chemistry, Organic
Tomer Weiss, Alexandra Wahab, Alex M. Bronstein, Renana Gershoni-Poranne
Summary: In this study, interpretable deep learning was used to identify the structure-property relationships of polybenzenoid hydrocarbons (PBHs) using a ring-based graph representation. The results showed agreement with conventional organic chemistry knowledge and electronic structure-based analyses, while also revealing new behaviors and influential structural motifs. The effects of linear, angular, and branching motifs on molecular properties were evaluated and compared, and the role of dispersion in mitigating torsional strain in nonplanar PBHs was explored. These findings contribute to a deeper understanding of PBH behavior and provide a foundation for designing new functional PBHs.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Analytical
Chiara Conchione, Giorgia Purcaro, Lanfranco S. Conte, Sabrina Moret
JOURNAL OF SEPARATION SCIENCE
(2015)
Article
Materials Science, Multidisciplinary
Uttam C. Paul, Despina Fragouli, Ilker S. Bayer, Elisa Mele, Chiara Conchione, Roberto Cingolani, Sabrina Moret, Athanassia Athanassiou
MATERIALS RESEARCH EXPRESS
(2017)
Review
Food Science & Technology
Sabrina Moret, Chiara Conchione, Ana Srbinovska, Paolo Lucci
Article
Food Science & Technology
Andrea Padovan, Sabrina Moret, Renzo Bortolomeazzi, Erica Moret, Chiara Conchione, Lanfranco S. Conte, Ludger Bruehl
EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY
(2020)
Article
Food Science & Technology
Paolo Lucci, Stefano David, Chiara Conchione, Andrea Milani, Sabrina Moret, Deborah Pacetti, Lanfranco Conte
Article
Food Science & Technology
Chiara Conchione, Paolo Lucci, Sabrina Moret
Review
Food Science & Technology
Ana Srbinovska, Chiara Conchione, Luca Menegoz Ursol, Paolo Lucci, Sabrina Moret
Editorial Material
Chemistry, Analytical
Ana Srbinovska, Chiara Conchione, Paolo Lucci, Sabrina Moret
Summary: A rapid, solvent-sparing method for determining hydrocarbon contaminants in fish products was developed, validated, and applied. Farmed Atlantic salmon showed higher levels of mineral oil hydrocarbons and polyolefin oligomeric hydrocarbons compared to wild salmon. Contamination with hydrocarbon contaminants varied among different fish products.
JOURNAL OF AOAC INTERNATIONAL
(2021)
Article
Chemistry, Applied
Luca Menegoz Ursol, Chiara Conchione, Ana Srbinovska, Sabrina Moret
Summary: A rapid and solvent-saving method based on microwave-assisted saponification (MAS) followed by epoxidation and on-line LC-GC-FID has been optimized and validated for high-sensitivity determination of MOAH in extra virgin olive oils. The method was also applied for MOSH determination and showed that olive oils from the Italian market or oil mills were contaminated with variable amounts of MOSH and MOAH, while laboratory-extracted oils had low and rather constant levels of MOSH and no detectable MOAH.
Article
Chemistry, Applied
Srbinovska Ana, Conchione Chiara, Celaj Fabiola, Menegoz Ursol Luca, Moret Sabrina
Summary: Mineral oil saturated (MOSH) and aromatic hydrocarbons (MOAH) are contaminants of health concerns in packaging and processing. This study validated a rapid and high-sensitivity method for determining these contaminants in cocoa powder and found additional contaminants in the packaging. Most samples exceeded the benchmark levels set by Germany.
Review
Food Science & Technology
Valentina Bertoz, Giorgia Purcaro, Chiara Conchione, Sabrina Moret
Summary: PAHs are environmental and processing contaminants that are widespread and may contaminate vegetable oils. Due to their carcinogenic and toxic effects, surveillance schemes and mitigation strategies are needed to monitor human exposure to PAHs. Edible oils, particularly olive oil, may contain unsafe levels of these compounds.