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Yi Chen et al.
Environmental pollution (Barking, Essex : 1987), 247, 944-952 (2019-03-03)
Organophosphate esters (OPEs) and phthalate esters (PAEs) are extensively used as additives in commercial and household products. However, knowledge on human exposure to OPEs and PAEs remains limited in China. This study aimed to investigate OPE and PAE metabolites in
Michiel Bastiaensen et al.
Environment international, 146, 106147-106147 (2020-11-03)
Exposure to organophosphate flame retardants and plasticizers (PFRs) is commonly estimated by measuring biomarker concentrations in spot urine samples. However, their concentrations in urine can vary greatly over time due to short biological half-lives and variable exposure, potentially leading to
José Grau et al.
Journal of chromatography. A, 1593, 9-16 (2019-02-18)
This work describes a new analytical method useful for monitoring the human exposure to the endocrine-disrupting plasticizer triphenyl phosphate (TPP) via nail polish use. The method allows trace determination of this parent compound and its main metabolite, namely diphenyl phosphate
Ying Li et al.
Environmental pollution (Barking, Essex : 1987), 259, 113810-113810 (2019-12-31)
The occurrence and composition profiles of 13 triester organophosphate flame retardants and their three diester metabolites in river water, wastewater, and tap water in China were studied. Most target organophosphate esters (OPEs) were found in water samples, with average concentrations
Minming Wu et al.
Materials science & engineering. C, Materials for biological applications, 45, 162-169 (2014-12-11)
Novel biomimetic amphiphilic chitosan derivative, deoxycholic acid-phosphorylcholine-chitosan conjugate (DCA-PCCs) was synthesized based on the combination of Atherton-Todd reaction for coupling phosphorylcholine (PC) and carbodiimide coupling reaction for linking deoxycholic acid (DCA) to chitosan. The chemical structure of DCA-PCCs was characterized
Liang Xu et al.
Environmental pollution (Barking, Essex : 1987), 250, 559-566 (2019-04-27)
Influent, effluent and sludge samples were collected from eight industrial wastewater treatment plants (WWTPs) in the Pearl River Delta, China. Samples were investigated for the occurrence of 10 organophosphate esters (OPEs) and 7 organophosphate diesters (Di-OPs). Most of the 10
Living cationic polymerization of isobutyl vinyl ether by the diphenyl phosphate/zinc iodide initiating system.
Sawamoto M, et al.
Polym. Bull., 20(5), 407-412 (1988)
Charlène Pouech et al.
Journal of chromatography. A, 1423, 111-123 (2015-11-12)
Polymer items are extensively present in the human environment. Humans may be consequently exposed to some compounds, such as additives, incorporated in these items. The objective of this work is to assess the human exposure to the main additives such
Minakshi Ghate et al.
Luminescence : the journal of biological and chemical luminescence, 33(6), 999-1009 (2018-06-01)
This paper reports the synthesis and characterization of 2-(4-ethoxyphenyl)-4-phenyl quinoline (OEt-DPQ) organic phosphor using an acid-catalyzed Friedlander reaction and the preparation of blended thin films by molecularly doping OEt-DPQ in poly(methyl methacrylate) (PMMA) at different wt%. The molecular structure of
Shamil R Saitov et al.
Polymers, 11(6) (2019-05-31)
Electrical, photoelectrical, and optical properties of thin films of a new heat-resistant polyphenylquinoline synthesized using facile methods were investigated. An analysis of the obtained temperature dependences of the dark conductivity and photoconductivity indicates the hopping mechanism of conductivity over localized
Andreia Alves et al.
Chemosphere, 168, 692-698 (2016-11-12)
In the present study, a new extraction method based on acid digestion and SPE clean-up (Oasis Wax) was developed for measuring four PFR metabolites (i.e. dibutyl phosphate (DBP), diphenyl phosphate (DPhP), bis(1,3-dichloro-2-propyl)phosphate (BDCPP) and bis(2-butoxy ethyl) phosphate (BBEP)) in hair
Guanyong Su et al.
Journal of chromatography. A, 1426, 154-160 (2015-12-22)
Organophosphate (OP) diesters in urine samples have potential use as biomarkers of organism exposure to environmentally relevant OP triester precursors and in particular OP triester flame retardants. This present study developed a quantitatively sensitive ultra high pressure liquid chromatography (UHPLC-MS)
Ruirui Liu et al.
Talanta, 147, 69-75 (2015-11-26)
Both polyurethane foam (PUF) and sorbent-impregnated PUF (SIP) passive air sampling (PAS) methods were deployed and compared separately for the analysis of organophosphate esters (OPEs) in outdoor atmospheric environment. During an continuous period of 84 days, parallel samples were also
Umut Gazi et al.
The Journal of biological chemistry, 286(10), 7822-7829 (2011-01-06)
The mannose receptor (MR) is an endocytic type I membrane molecule with a broad ligand specificity that is involved in both hemostasis and pathogen recognition. Membrane-anchored MR is cleaved by a metalloproteinase into functional soluble MR (sMR) composed of the
Ruiwen He et al.
Chemosphere, 150, 528-535 (2015-11-21)
Incidental ingestion of indoor dust is an important pathway for human exposure to organophosphorus flame retardants (OPFRs) and phthalate esters (PAEs). However, little is known about their bioaccessibility in indoor dust. In this study, indoor dust samples were collected from
Fengqiong Shi et al.
Environment international, 139, 105653-105653 (2020-05-04)
Numerous studies have documented that the general population is widely exposed to organophosphate esters (OPEs), yet studies on the emissions of OPEs in the industrial application processes and their occupational exposure are scarce. The aim of this study was to
Allison L Phillips et al.
Toxicological sciences : an official journal of the Society of Toxicology (2019-07-04)
Organophosphate ester (OPE) flame retardants and plasticizers, consumer product additives with widespread human exposure, were evaluated for their effect on the activity of purified human liver carboxylesterase (hCE1). Four of the 15 OPEs tested had IC50 values lower than 100 nM
Peng Chen et al.
Environmental science and pollution research international, 27(24), 30378-30389 (2020-05-29)
"Swimming across the Pearl River" is an annual large-scale sporting event with great popularity in Guangzhou. To reduce the risk of swimmers' exposure to various contaminants in the Pearl River during swimming activities, the local government limits direct sewage and
Dezhen Wang et al.
Environmental pollution (Barking, Essex : 1987), 237, 10-17 (2018-02-22)
The widespread application of organophosphorous flame retardants (OPFRs) has led to considerable human exposure, with major concerns regarding their health risks. Herein, we investigate the effects of triphenyl phosphate (TPP), one of the most widely used OPFRs, and one of
Lauren Mullin et al.
Analytica chimica acta, 1125, 29-40 (2020-07-18)
Dust analysis provides a means to assess the degree of exposure of humans in an indoor environment to various contaminant classes such as flame retardants, pesticides and others. There is increasing interest in non-targeted acquisitions using high resolution mass spectrometry
Maria K Björnsdotter et al.
Environment international, 112, 59-67 (2017-12-22)
Phosphate flame retardants (PFRs) are ubiquitous chemicals in the indoor environment. Diphenyl phosphate (DPHP) is a major metabolite and a common biomarker of aryl-PFRs. Since it is used as a chemical additive and it is a common impurity of aryl-PFRs
Xiao Yan et al.
Chemosphere, 200, 569-575 (2018-03-06)
Urinary metabolites of phosphate flame retardants (PFRs) were determined in workers from an electronic waste (e-waste) recycling site and an incineration plant, in order to assess the PFR exposure risks of workers occupied with e-waste recycling and incineration. Bis(2-chloroethyl) phosphate
Quan Zhang et al.
Environmental science & technology, 54(7), 4465-4474 (2020-03-10)
Despite the ubiquity of organophosphate flame retardants (OPFRs) metabolites in the biota, the endocrine disrupting potency has not been well examined. Herein, we chose three primary metabolites of OPFRs (BCIPP, BDCIPP, and DPHP) to investigate their potential endocrine disrupting effects
Ling Li et al.
Macromolecular bioscience, 15(7), 912-926 (2015-03-25)
Herein, an effective gene delivery vector phosphorylcholine and macrocyclic polyamine grafted chitosan (PC-g(6)-Cs-g(2)-Cyclen) was developed. Chemical characterization of product PC-g(6)-Cs-g(2)-Cyclen was performed by NMR, FT-IR, gel permeation chromatography (GPC), and X-ray photoelectron spectroscopy (XPS) analysis. PC-g(6)-Cs-g(2)-Cyclen could more efficiently bind
Yeowool Choi et al.
The Science of the total environment, 708, 135106-135106 (2019-12-04)
Triphenyl phosphate (TPHP), one of the organophosphate flame retardants, has been widely used in manufacturing, thereby causing a gradual increase in TPHP concentrations in aquatic environments. However, the information on the biotransformation mechanism of TPHP in invertebrates is lacking. The
Nayana K Jayatilaka et al.
Chemosphere, 235, 481-491 (2019-07-05)
Chlorinated alkyl and non-chlorinated aryl organophosphate flame retardants (OPFRs) and some brominated flame retardants (FR) were introduced as replacements for polybrominated diphenyl ethers (PBDEs) after PBDEs phase-out in 2004 and 2013. Organophosphorous (OP) insecticides are mainly used in agricultural settings
Nayana K Jayatilaka et al.
Analytical and bioanalytical chemistry, 409(5), 1323-1332 (2016-11-14)
Polybrominated diphenyl ethers (PBDEs), produced as flame retardants worldwide, have been phased-out in many countries, and chlorinated and non-chlorinated organophosphates and non-PBDE brominated formulations (e.g., Firemaster 550 (FM550)) have entered the consumers' market. Recent studies show that components of organophosphate
Yiming Yao et al.
Environment international, 146, 106215-106215 (2020-10-29)
Organophosphate esters (OPEs) are widely used as flame retardants and plasticizers in consumer and industrial products. Human exposure to OPEs raises concerns due to their endocrine disruptive potentials. Till now, the effects of OPEs on thyroid hormones (THs) and the
Guowei Wang et al.
Environmental pollution (Barking, Essex : 1987), 229, 177-187 (2017-06-10)
Although organophosphate esters (OPEs) have been detected with growing frequency in water ecosystems, the underlying accumulation mechanisms of these compounds in fish are still unknown. Here, we investigated the tissue-specific accumulation and depuration of seven OPEs in adult zebrafish at
Guowei Wang et al.
Environmental science & technology, 50(24), 13555-13564 (2016-12-21)
Understanding bioaccumulation and metabolism is critical for evaluating the fate and potential toxicity of compounds in vivo. We recently investigated, for the first time, the bioconcentration and tissue distribution of triphenyl phosphate (TPHP) and its main metabolites in selected tissues
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