Results 61 to 70 of about 2,628 (167)

Engineering Framework Materials in Water Systems for Targeted Ion Extraction and Spontaneous Energy Harvesting

Advanced Materials, Volume 37, Issue 48, December 3, 2025.
Through comprehensive analysis of framework materials in ion extraction, osmotic energy conversion, and evaporative energy harvesting, this review establishes interdisciplinary connections centered on ion‐selective transport mechanisms across these applications and identifies critical challenges and knowledge gaps in existing studies.
Zhengyun Wang, Miao Zhang, Hongfang Liu, Wai‐Yeung Wong   +3 more
wiley   +1 more source

Non-volatile N-nitrosamines in brewing industry. Part II. - Study of the Effect of UV Irradiation on the ATNC and Some Representatives of N-nitrosoaminoacids in Beer.

Kvasný průmysl, 2012
Contrary to volatile N-nitrosamines, about mechanism of decomposion of apparent total N-nitroso compounds and non-volatile nitrosamines e.g. N-nitrosoaminoacids in beer is known only a little.
Jiří ČULÍK, Tomáš HORÁK, Pavel ČEJKA, Marie JURKOVÁ   +3 more
doaj   +1 more source

Opportunities and Challenges of the Application of Nuclear Magnetic Resonance‐Based Cerebrospinal Fluid Metabolomics for Clinical Research

Chemistry–Methods, Volume 5, Issue 12, November 2025.
Cerebrospinal fluid (CSF) is an important diagnostic matrix in neurology. This review illustrates the potentials and pitfalls of current CSF analysis by nuclear magnetic resonance. Created with BioRender.com in BioRender. Berezhnoy, G. (2025) https://BioRender.com/x80l903. Web of Science is owned by Clarivate.
Georgy Berezhnoy, Jannik Sprengel, Claire Cannet, Nils Pompe, Christoph Trautwein   +4 more
wiley   +1 more source

Determination of N-Nitrosamines by Gas Chromatography Coupled to Quadrupole–Time-of-Flight Mass Spectrometry in Water Samples

Separations, 2020
An analytical method based on high-resolution quadrupole−time-of-flight (QToF) mass spectrometry has been developed as an alternative to the classical method, using a low-resolution ion trap (IT) analyzer to reduce interferences in N-nitrosamines ...
Benigno José Sieira, Inmaculada Carpinteiro, Rosario Rodil, José Benito Quintana, Rafael Cela   +4 more
doaj   +1 more source

Interpretation of in vitro concentration‐response data for risk assessment and regulatory decision‐making: Report from the 2022 IWGT quantitative analysis expert working group meeting

Environmental and Molecular Mutagenesis, Volume 66, Issue S2, Page 101-120, December 2025.
Abstract Quantitative risk assessments of chemicals are routinely performed using in vivo data from rodents; however, there is growing recognition that non‐animal approaches can be human‐relevant alternatives. There is an urgent need to build confidence in non‐animal alternatives given the international support to reduce the use of animals in toxicity ...
Marc A. Beal, Guangchao Chen, Kerry L. Dearfield, Min Gi, Bhaskar Gollapudi, Robert H. Heflich, Katsuyoshi Horibata, Alexandra S. Long, David P. Lovell, Barbara L. Parsons, Stefan Pfuhler, John Wills, Andreas Zeller, George Johnson, Paul A. White   +14 more
wiley   +1 more source

Severity of effect considerations regarding the use of mutation as a toxicological endpoint for risk assessment: A report from the 8th International Workshop on Genotoxicity Testing (IWGT)

Environmental and Molecular Mutagenesis, Volume 66, Issue S2, Page 121-143, December 2025.
Abstract Exposure levels without appreciable human health risk may be determined by dividing a point of departure on a dose–response curve (e.g., benchmark dose) by a composite adjustment factor (AF). An “effect severity” AF (ESAF) is employed in some regulatory contexts.
Barbara L. Parsons, Marc A. Beal, Kerry L. Dearfield, George R. Douglas, Min Gi, B. Bhaskar Gollapudi, Robert H. Heflich, Katsuyoshi Horibata, Michelle Kenyon, Alexandra S. Long, David P. Lovell, Anthony M. Lynch, Meagan B. Myers, Stefan Pfuhler, Alisa Vespa, Andreas Zeller, George E. Johnson, Paul A. White   +17 more
wiley   +1 more source

The Vietnamese swine as a translational model of invasive ductal carcinoma of the breast

Animal Models and Experimental Medicine, Volume 8, Issue 11, Page 1997-2007, November 2025.
The flow diagram outlines the chemical induction of breast tumors through a single intraperitoneal dose of MNU. Tumor development was assessed using ultrasound and clinical examination. After 14 weeks, mammary tissue was collected and histologically analyzed to evaluate structural similarities between sows and humans, the carcinogenic potential of MNU,
Claudia Elizabeth Vera‐Tizatl, Arturo Vera‐Hernández, Lorenzo Leija‐Salas, Marco Antonio Vega‐López, María del Carmen Ramírez‐Estudillo, German Isauro Garrido Fariña, Adriana Leticia Vera‐Tizatl   +6 more
wiley   +1 more source

Characterization of drug metabolizing enzymes and assessment of aging in the gilthead seabream (Sparus aurata) liver

Veterinární Medicína, 2010
Organic anthropogenic compounds such as polycyclic aromatic hydrocarbons, polychlorinated biphenyls, nitroaromatics, dioxins, various pesticides and natural compounds can enter the aquatic environment. These lipophilic compounds are readily taken up into
H. Ardag Akdogan, A. Sen
doaj   +1 more source

Current incidence of N-nitrosodimethylamine in beers worldwide

Food Additives and Contaminants, 2007
A range of beers (n = 138) from 42 countries were analysed for the presence of N-nitrosodimethylamine (NDMA) using a chemiluminescence technique with a limit of quantification of 0.1 microg L(-1). The overwhelming majority of samples (79%) did not contain detectable NDMA, and only three samples exceeded 0.5 microg L(-1).
Baxter, Denise, Slaiding, Ian, Travers, Valerie   +2 more
openaire   +2 more sources

N-nitrosamines in karst groundwaters in southwestern China: Risks and implications for drinking water safety

Emerging Contaminants
Groundwater is a vital drinking water source for populations in remote karst regions. However, the highly developed karst tube systems facilitate the infiltration of surface wastewater containing N-nitrosamines, raising concerns about groundwater safety.
Xiongwei Gu, Liwei Xu, Xin Huang, Yingjie Chen, Yan Li, Yuanyu Shan, Xiaoyu Yan, Zhaojue Liu, Honghu Zeng, Wenwen Chen, Huanfang Huang   +10 more
doaj   +1 more source