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Tricresyl phosphate (TCP), a notable emerging pollutant with a high bioconcentration factor and biotoxicity, is a typical representative of aryl-organophosphorus flame retardants. The electrochemical and chromatographic technologies used in conventional TCP detection have a variety of drawbacks. Hence, it is crucial to suggest an easy, accurate, and selective method for detecting TCP. In this study, we presented a brand-new method based on NH-MIL-53(Al) nanoprobe for the direct luminescence assay of TCP. NH-MIL-53(Al) possessed an excellent crystal structure and superior optical qualities. Notably, the introduction of TCP caused a considerable dampening of the photoluminescence signal of the nanoprobe. The fluorescence response based on static quenching was verified by fluorescence lifetime decay curves. The thermodynamic analysis further concluded that TCP and nanoprobe spontaneously produced non-fluorescent complexes due to hydrophobic interaction. The quenching efficiency (F-F)/F of the nanoprobe and the TCP concentration displayed good linearity in the scope of 0.3-3.0 μM (R = 0.996), and the LOD was 0.058 μM under the ideal detection conditions. More significantly, the technique was effectively used to identify TCP in lake and tap water (RSD ≤5.79%), which provided a fresh perspective on how to recognize OPFRs in environmental water.
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http://dx.doi.org/10.1016/j.aca.2023.340809 | DOI Listing |
Toxics
July 2025
Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA.
The maternal-fetal environment is influenced by multiple factors, including nutrition and environmental contaminants, which can impact long-term development. Perinatal exposure to organophosphate flame retardants (OPFRs) disrupts energy homeostasis and causes maladaptive behaviors in mice. Maternal obesity affects development by impairing blood-brain barrier (BBB) formation, influencing brain regions involved in energy regulation and behavior.
View Article and Find Full Text PDFToxicology
August 2025
Department of Pharmaceutical and Pharmacological Sciences, Vrije Universiteit Brussel (VUB), In Vitro Toxicology and Dermato-Cosmetology (IVTD) Research Group, Brussels, Belgium. Electronic address:
Fatty liver disease, which can result from various factors including chemical exposure, is an increasing clinical concern. A key event in its development is steatosis, referring to the accumulation of lipids within hepatocytes. To enable early detection of chemical-induced liver steatosis, we developed a mechanistically-anchored, human-relevant new approach methodology (NAM).
View Article and Find Full Text PDFAnalyst
September 2025
School of Environmental Science and Engineering, Sichuan Engineering Research Center for Pollution Control in Rail Transit Engineering, Southwest Jiaotong University, Chengdu, 611756, Sichuan, China.
Tricresyl phosphate (TCP), a typical aryl-organophosphorus flame retardant, has been shown to exhibit neurotoxicity, genotoxicity, and reproductive and developmental toxicity. The release of TCP into the environment through human activities has raised significant global concerns, creating a demand for efficient, rapid, and portable TCP detection methods. In this study, a fluorescence turn-on sensor based on NU-1000 was developed for the selective detection of TCP.
View Article and Find Full Text PDFMar Pollut Bull
August 2025
Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China. Electronic address:
Organophosphate esters (OPEs), including triesters (OPTEs) and diesters (OPDEs), are widely used as flame retardants and plasticizers, but the vertical distribution of OPEs in marine sediments remains largely unexplored. To address this, we developed an effective strategy for target, suspect, and non-target screening of OPTEs and OPDEs with ultrahigh-performance liquid chromatography-Q Exactive hybrid quadrupole-Orbitrap high-resolution mass spectrometry (UHPLC-Q-Orbitrap HRMS). This study reports 17 OPTEs and 10 OPDEs, including five OPTEs and six OPDEs that were detected for the first time in sediment cores from the East China Sea.
View Article and Find Full Text PDFFood Chem Toxicol
October 2025
Shenzhen Key Laboratory of Steroid Drug Discovery and Development, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, 518172, China. Electronic address:
As a typical organophosphorus compound, tri-ortho-cresyl phosphate (TOCP) has been widely used as an industrial additive. But the toxicity of TOCP in the maintenance of glucose homeostasis has not been fully elucidated. In this study, the mechanism of TOCP's effect in glucose homeostasis was investigated using both animal models and cellular experiments.
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