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Showing 1-30 of 44 results for "53008" within Papers
Mihir Tanay Das et al.
Environmental pollution (Barking, Essex : 1987), 189, 118-125 (2014-03-25)
An indirect estimation method was followed to derive exposure levels of fifteen phthalate congeners in urban population of Delhi, India. The exposure media samples were collected from Jawaharlal Nehru University (JNU) campus and Okhla industrial area. GC-MS analysis of the
Lee-Ju Cheng et al.
Aquatic toxicology (Amsterdam, Netherlands), 109, 166-175 (2011-10-28)
The toxicity and effects of diethyl phthalate (DEP), a potent allelochemical, on the growth of greater duckweed were studied. Biochemical analyses and physiological methods were combined to investigate oxidative stress, adverse effects and their mechanisms in greater duckweeds grown in
Mark L Kao et al.
Xenobiotica; the fate of foreign compounds in biological systems, 42(4), 389-397 (2011-11-08)
The pharmacokinetics, metabolism and excretion of monoethyl phthalate (MEP) and diethyl phthalate (DEP) were compared after intravenous or oral administration of [(14)C]MEP or [(14)C]DEP in juvenile beagle dogs. Four male juvenile beagle dogs were treated with a single oral or
Ann M Tarrant et al.
General and comparative endocrinology, 173(2), 346-355 (2011-07-05)
In arthropods, ecdysteroids regulate molting by activating a heterodimer formed by the ecdysone receptor (EcR) and retinoid X receptor (RXR). While this mechanism is similar in insects and crustaceans, variation in receptor splicing, dimerization and ligand affinity adds specificity to
T Fierens et al.
Environment international, 51, 1-7 (2012-11-10)
This survey determined the levels of eight phthalates - i.e. dimethyl phthalate (DMP), diethyl phthalate (DEP), diisobutyl phthalate (DiBP), di-n-butyl phthalate (DnBP), benzylbutyl phthalate (BzBP), di(2-ethylhexyl) phthalate (DEHP), dicyclohexyl phthalate (DCHP) and di-n-octyl phthalate (DnOP) - in several Belgian milk
Antonia M Calafat et al.
Environmental health perspectives, 114(11), 1783-1789 (2006-11-17)
The probability of nonoccupational exposure to phthalates is high given their use in a vast range of consumables, including personal care products (e.g., perfumes, lotions, cosmetics), paints, industrial plastics, and certain medical devices and pharmaceuticals. Phthalates are of high interest
Xianghua Zheng et al.
Se pu = Chinese journal of chromatography, 30(1), 27-32 (2012-06-07)
A method for the simultaneous determination of 23 phthalate esters in food samples by solid-phase extraction coupled with gas chromatography-mass spectrometry (SPE-GC-MS) was developed and evaluated. The samples were extracted with hexane or acetonitrile, and cleaned up with a glass
Zuriñe Abrego et al.
The Analyst, 139(23), 6232-6241 (2014-10-11)
A method based on scanning laser ablation and inductively coupled plasma-mass spectrometry (SLA-ICPMS) and Raman micro-spectroscopy for the detection and identification of compounds consistent with gunshot residue particles (GSR) has been developed. The method has been applied to the characterization
Tai-Sheng Cheng
Aquatic toxicology (Amsterdam, Netherlands), 124-125, 171-178 (2012-09-15)
The toxic effects of diethyl phthalate (DEP), a potent allelochemical, on the enzyme activity and polypeptide accumulation of glutamine synthetase (GS) in greater duckweed were investigated. In our previous studies, DEP induced oxidative responses at concentrations from 0.5 to 2
Danelle Dhanirama et al.
Environmental technology, 33(13-15), 1597-1608 (2012-09-20)
Chemicals of emerging concern (CECs) are frequently used in cosmetic formulations and can potentially reach the environment at concentrations that may cause harm. A methodology was developed to assess over 120 chemicals assembled from product ingredient listings to identify and
Yongkun Sun et al.
Basic & clinical pharmacology & toxicology, 111(2), 113-119 (2012-02-22)
In this study, to examine the mechanism of diethyl phthalate toxicity to cells, the effects of diethyl phthalate on apoptosis in a PC12 cell system were investigated by assaying apoptotic factors such as caspase-3, Bax, cytochrome c and DNA damage.
Extraction of phthalate esters from water and beverages using a graphene-based magnetic nanocomposite prior to their determination by HPLC
Wu Q, et al.
Microchimica Acta, 177(1-2), 23-30 (2012)
Mir Ali Farajzadeh et al.
Journal of chromatography. A, 1379, 24-33 (2015-01-04)
In this study, for the first time, a dispersive liquid-liquid microextraction technique using a ternary solvent mixture is reported. In order to extract five phthalate esters and di(2-ethylhexyl) adipate with different polarities from aqueous samples, a simplex centroid experimental design
Maik Hadorn et al.
Proceedings of the National Academy of Sciences of the United States of America, 109(50), 20320-20325 (2012-11-24)
Higher-order structures that originate from the specific and reversible DNA-directed self-assembly of microscopic building blocks hold great promise for future technologies. Here, we functionalized biotinylated soft colloid oil-in-water emulsion droplets with biotinylated single-stranded DNA oligonucleotides using streptavidin as an intermediary
Guo-song Zhang et al.
Yao xue xue bao = Acta pharmaceutica Sinica, 46(9), 1144-1149 (2011-11-30)
The free membrane of Eudragit L100/S100 which is pH-sensitive, colon-specific was prepared by plane casting films. The film humidity, species and amount of plasticizers, the ratio of membrane material was investigated. The rate of membrane permeability and mechanical properties were
Nahum A Medellin-Castillo et al.
The Science of the total environment, 442, 26-35 (2012-11-28)
The objective of this work was to compare the effectiveness of conventional technologies (adsorption on activated carbon, AC, and ozonation) and technologies based on advanced oxidation processes, AOPs, (UV/H(2)O(2), O(3)/AC, O(3)/H(2)O(2)) to remove phthalates from aqueous solution (ultrapure water, surface
T Fierens et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 50(12), 4428-4435 (2012-09-19)
Food products can be contaminated with toxic compounds via the environment. Another possibility of food contamination is that toxicants are generated in foods or that chemicals migrate from food contact materials into foods during processing. In this study, the effect
Gurusankar Saravanabhavan et al.
The Science of the total environment, 500-501, 191-198 (2014-09-15)
We have analyzed the trends in the body-weight-adjusted urinary monoethyl phthalate (MEP) concentrations and the diethyl ethyl phthalate (DEP) daily intake estimates in the general Canadian population (aged 6-49 years) using the Canadian Health Measures Survey 2007-2009 dataset. The creatinine
Ying Guo et al.
Environment international, 37(5), 893-898 (2011-04-12)
Phthalates are esters of phthalic acid and are mainly used as plasticizers (added to plastics to increase their flexibility, transparency, durability, and longevity). Humans are exposed to phthalates through several routes. Urinary phthalate metabolites can be used as biomarkers of
Hiroshi Toda et al.
Applied and environmental microbiology, 81(6), 1919-1925 (2015-01-04)
We describe the development of biocatalysis for producing optically pure straight-chain (S)-epoxyalkanes using styrene monooxygenase of Rhodococcus sp. strain ST-10 (RhSMO). RhSMO was expressed in the organic solvent-tolerant microorganism Kocuria rhizophila DC2201, and the bioconversion reaction was performed in an
Kashappa-Goud H Desai et al.
Journal of controlled release : official journal of the Controlled Release Society, 165(1), 62-74 (2012-10-30)
Herein, we describe the detailed development of a simple and effective method to microencapsulate vaccine antigens in poly(lactic-co-glycolic acid) (PLGA) by simple mixing of preformed active self-microencapsulating (SM) PLGA microspheres in a low concentration aqueous antigen solution at modest temperature
Lidia Casas et al.
Environment international, 37(5), 858-866 (2011-03-29)
Phthalate and phenol exposure is prevalent among the general population and of potential concern for pregnant women and children because of their suspected susceptibility to endocrine effects. To evaluate the extent of exposure to several phthalates and phenols in a
Munjed A Maraqa et al.
Journal of contaminant hydrology, 125(1-4), 57-69 (2011-05-31)
Sorption of dimethyl phthalate (DMP), diethyl phthalate (DEP) and dipropyl phthalate (DPP) to two soil materials that vary in organic matter content was investigated using miscible displacement experiments under saturated flow conditions. Generated breakthrough curves (BTCs) were inversely simulated using
Diethyl phthalate: a perspective.
M A Kamrin et al.
Journal of clinical pharmacology, 31(5), 484-489 (1991-05-01)
Sheng-Feng Hung et al.
PloS one, 9(6), e100321-e100321 (2014-06-27)
Effervescent multiple-unit floating drug delivery systems (muFDDSs) consisting of drug (lorsartan)- and effervescent (sodium bicarbonate)-containing pellets were characterized in this study. The mechanical properties (stress and strain at rupture, Young's modulus, and toughness) of these plasticized polymeric films of acrylic
Seungmin Na et al.
Ultrasonics sonochemistry, 19(5), 1094-1098 (2012-04-03)
This study investigated the degradation of diethyl phthalate (DEP) by sonolytic, photolytic and sonophotolytic processes. Two types of UV lamps, UVC (254 nm) and VUV (185 nm+254 nm), were combined with ultrasound (283 kHz). The pseudo-first order degradation rate constants
Wenlan Song et al.
Journal of chromatography. A, 1384, 28-36 (2015-02-11)
A novel zinc-zinc oxide (Zn-ZnO) nanosheets coating was directly fabricated on an etched stainless steel wire substrate as solid-phase microextraction (SPME) fiber via previous electrodeposition of robust Zn coating. The scanning electron micrograph of the Zn-ZnO nanosheets coated fiber exhibits
A M Api
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 39(2), 97-108 (2001-03-27)
Diethyl phthalate (DEP; CAS No. 84-66-2) has many industrial uses, as a solvent and vehicle for fragrance and cosmetic ingredients and subsequent skin contact. This review focuses on its safety in use as a solvent and vehicle for fragrance and
T Fierens et al.
Environment international, 73, 117-127 (2014-08-13)
In this study, a semi-probabilistic modelling approach was applied for the estimation of the long-term human dietary exposure to phthalates--one of world's most used families of plasticisers. Four phthalate compounds were considered: diethyl phthalate (DEP), di-n-butyl phthalate (DnBP), benzylbutyl phthalate
Elif Tümay Özer et al.
Journal of hazardous materials, 229-230, 20-28 (2012-07-04)
The barium hexaferrite (BaFe(12)O(19)) containing magnetic poly(ethylene glycol dimethacrylate-vinyl pyridine), (mag-poly(EGDMA-VP)) beads (average diameter=53-212 μm) were synthesized and characterized. Their use as an adsorbent in the removal of diethyl phthalate (DEP) from an aqueous solution was investigated. The mag-poly(EGDMA-VP) beads
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