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Showing 1-30 of 149 results for "S4972" within Papers
Joanna Stragierowicz et al.
Medycyna pracy, 63(5), 565-572 (2013-02-05)
Based on the studies performed a sensitive and simple method for the determination of benzene and styrene metabolites in urine has been developed. The developed procedure can be used for biological monitoring of occupational and environmental exposure. Urine samples for
JosƩ Rueff et al.
Clinica chimica acta; international journal of clinical chemistry, 399(1-2), 8-23 (2008-10-11)
Styrene is a commercially important chemical widely used in the manufacture of synthetic rubber, resins, polyesters, and plastics. The highest levels of human exposure to styrene occurs in occupational settings, especially during the production of reinforced plastic products, which involve
Daniela Saviello et al.
Analytica chimica acta, 843, 59-72 (2014-08-26)
Synchrotron-based Fourier transform infrared micro-spectroscopy (SR-Ī¼FTIR) was used to map photo-oxidative degradation of acrylonitrile-butadiene-styrene (ABS) and to investigate the presence and the migration of additives in historical samples from important Italian design objects. High resolution (3Ć3 Ī¼m(2)) molecular maps were
Liya Ge et al.
Talanta, 146, 107-113 (2015-12-24)
Polyhydroxyalkanoates (PHAs) are commercially-valuable biocompatible and biodegradable polymers with many potential medical, pharmaceutical and other industrial applications. The analysis of PHA monomeric composition is especially challenging due to the broad chemical diversity of PHA monomers and lack of analytical standards
M Kuricova et al.
Toxicology and applied pharmacology, 207(2 Suppl), 302-309 (2005-07-05)
1-SO-adenine DNA adducts, DNA single-strand breaks (SBs), chromosomal aberrations (CAs), mutant frequency (MF) at the HPRT gene, and immune parameters (hematological and of humoral immunity) were studied in styrene-exposed human subjects and controls. Results were correlated with genetic polymorphisms in
Esme Candish et al.
Journal of chromatography. A, 1410, 9-18 (2015-08-04)
While polymer monoliths are widely described for solid phase extraction (SPE), appropriate characterization is rarely provided to unravel the links between physical characteristics and observed advantages and disadvantages. Two known approaches to fabricate large surface area polymer monoliths with a
Sasa Gu et al.
Physical chemistry chemical physics : PCCP, 17(42), 28137-28143 (2015-03-20)
We present a detailed study of the catalytic activity of Au/Pd nanoalloys with Auā:āPd molar ratio 75ā:ā25 synthesized using spherical polyelectrolyte brushes (SPB) as carrier system. The reduction of 4-nitrophenol (Nip) by sodium borohydride (BH4(-)) has been used as a
Patrizia Marchetti et al.
Scientific reports, 5, 17353-17353 (2015-12-03)
Thin film composite membranes were prepared through a facile single-step wire-wound rod coating procedure in which internally crosslinked poly(styrene-co-butadiene) polymer nanoparticles self-assembled to form a thin film on a hydrophilic ultrafiltration support. This nanoparticle film provided a defect-free separation layer
Obliterative bronchiolitis in workers laying up fiberglass-reinforced plastics with polyester resin and methylethyl ketone peroxide catalyst.
Chi-Hsien Chen et al.
Occupational and environmental medicine, 70(9), 675-676 (2013-06-07)
B W Lawton et al.
International archives of occupational and environmental health, 79(2), 93-102 (2005-09-10)
The objective of this study was to review critically a number of occupational investigations of the exposure and effect relation between inhaled styrene vapour and hearing loss. There is concern that workers' hearing may be impaired by exposure to styrene
MichaÅ Brokl et al.
Journal of chromatography. A, 1370, 216-229 (2014-12-03)
A method involving headspace solid-phase microextraction (HS-SPME) and comprehensive two-dimensional gas chromatography (GCĆGC) coupled to time-of-flight mass spectrometry (TOFMS) was developed and applied to evaluate profiles of volatile compounds present in mainstream tobacco smoke particulate matter trapped on glass fiber
Rocio Aranda-Rodriguez et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 992, 76-85 (2015-05-13)
Humans are continuously exposed to volatile organic compounds (VOCs) as these chemicals are ubiquitously present in most indoor and outdoor environments. In order to assess recent exposure to VOCs for population-based studies, VOCs are measured in the blood of participants.
Sung Giu Jin et al.
International journal of pharmaceutics, 490(1-2), 240-247 (2015-05-31)
To develop a novel sodium alginate based Centella asiatica (CA)-loaded hydrocolloid wound dressing (HCD) providing excellent mechanical properties and improved wound healing, numerous CA-loaded HCDs were prepared with various ingredients using the hot melting method. The effect of sodium alginate
R David Grigg et al.
Journal of the American Chemical Society, 134(39), 16131-16134 (2012-09-19)
A Cu(I)-catalyzed 1,3-halogen migration reaction effectively recycles an activating group by transferring bromine or iodine from a sp(2) to a benzylic carbon with concomitant borylation of the Ar-X bond. The resulting benzyl halide can be reacted in the same vessel
Florentina Villanueva et al.
International journal of hygiene and environmental health, 218(6), 522-534 (2015-05-31)
Twenty nine organic air pollutants including carbonyl compounds, alkanes, aromatic hydrocarbons and terpenes were measured in the indoor environment of different houses together with the corresponding outdoor measurements in Puertollano, the most industrialized city in central Iberian Peninsula. VOCs were
Peter J Oefner et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 782(1-2), 27-55 (2002-11-30)
The introduction of alkylated, nonporous poly-(styrene-divinylbenzene) microparticles in 1992 enabled the subsequent development of denaturing HPLC that has emerged as the most sensitive screening method for mutations to date. Denaturing HPLC has provided unprecedented insight into human origins and prehistoric
Ya-Jie Xie et al.
Analytical and bioanalytical chemistry, 404(10), 3189-3194 (2012-10-12)
Near infrared spectroscopy (NIRS) has been proved to be a powerful analytical tool in different fields. However, because of the low sensitivity in near infrared region, it is a significant challenge to detect trace analytes with normal NIRS technique. A
PS/CTAB/silica composites from room temperature polymerization of high internal phase emulsion gels.
Tan Zhang et al.
Journal of colloid and interface science, 451, 161-169 (2015-04-22)
Polystyrene (PS)/cetyltrimethylammonium bromide (CTAB)/silica composites were prepared by CTAB-catalyzed in-situ polymerization of high internal phase emulsion gels (HIPE gels) at room temperature. The room temperature approach in HIPE gels yielded mono-dispersed PS/CTAB/silica spherical composite particles with sizes of 121 and
Simone Lerch et al.
Nanomedicine : nanotechnology, biology, and medicine, 11(6), 1585-1596 (2015-05-10)
Many nanoparticular drug delivery approaches rely on a detailed knowledge of the acidification process during intracellular trafficking of endocytosed nanoparticles (NPs). Therefore we produced a nanoparticular pH sensor composed of the fluorescent pH-sensitive dual wavelength dye carboxy seminaphthorhodafluor-1 (carboxy SNARF-1)
Peng Du et al.
Small (Weinheim an der Bergstrasse, Germany), 11(20), 2454-2462 (2015-02-03)
Localized surface plasmon resonance (LSPR), light scattering, and lowering the series resistance of noble metal nanoparticles (NPs) provide positive effect on the performance of photovoltaic device. However, the exciton recombination on the noble metal NPs accompanying above influences will deteriorate
E Passas-Lagos et al.
Langmuir : the ACS journal of surfaces and colloids, 31(28), 7749-7757 (2015-07-15)
Iron-based mushroom-type Janus particles consisting of a poly(sytrene-co-divinylbenzene) and a silica moiety both with controllable morphologies were successfully synthesized on the gram scale and investigated as surfactants for Pickering emulsions. Two oil-water model systems, namely toluene-water and vegetable oil-water, were
C R Kirman et al.
Journal of toxicology and environmental health. Part A, 75(21), 1280-1297 (2012-10-04)
A screening-level risk assessment was conducted for styrene-acrylonitrile (SAN) Trimer detected at the Reich Farm Superfund site in Toms River, NJ. Consistent with a screening-level approach, on-site and off-site exposure scenarios were evaluated using assumptions that are expected to overestimate
N A Brown et al.
Regulatory toxicology and pharmacology : RTP, 32(3), 228-247 (2001-02-13)
The reproductive and developmental toxicity of styrene has been studied in animals and humans. The animal studies on styrene have diverse study designs and conclusions. Developmental or reproductive toxicity studies have been conducted in rats, mice, rabbits, and hamsters. In
Shouying Li et al.
Macromolecular bioscience, 15(3), 318-327 (2014-12-17)
We investigated the cellular uptake behavior and cell viability of semiconducting polymer dots (Pdots) on human gastric adenocarcinoma (SGC-7901) cells and human gastric mucosal (GES-1) cells. MTT studies indicate the Pdot treatment induces obvious cell proliferation in both types of
MƔria PolƔkovƔ et al.
Central European journal of public health, 20(3), 226-232 (2013-01-05)
Mandelic acid (MA) is an important metabolite of styrene. In humans, measurement of its concentration in urine provides an important assessment of the overall level of styrene exposure in workers of the reinforced plastic manufacturing industry. The aim of our
S Nakayama et al.
Soft matter, 11(47), 9099-9106 (2015-09-30)
Submicrometer-sized polystyrene (PS) particles carrying poly[2-(diethylamino)ethyl methacrylate] (PDEA) hairs (PDEA-PS particles) were synthesized by free radical dispersion polymerization. The hydrophilicity-hydrophobicity balance of the PDEA could be tuned by varying the temperature at near neutral pH (a lower critical solution temperature
M Fathy et al.
Materials science & engineering. C, Materials for biological applications, 33(7), 4063-4070 (2013-08-06)
Copolymer of styrene, and vinylpyrrolidone was prepared by various techniques. Different nanometals and nanometal oxides were added into the copolymer as antimicrobial agents against Sulfate Reducing Bacteria (SRB). The nanocomposite chemical structure was confirmed by using FTIR, (1)H NMR spectroscopy
Elisabetta M Zanetti et al.
Journal of sports sciences, 31(7), 767-778 (2012-12-13)
Artificial turf is being used more and more often. It is more available than natural turf for use, requires much less maintenance and new products are able to comply with sport performance and athletes' safety. The purpose of this paper
Matyjaszewski K, et al.
Journal of the American Chemical Society, 119(4), 674-680 (1997)
Dalia Y Sosa et al.
Molecules (Basel, Switzerland), 20(1), 52-69 (2014-12-30)
The semicontinuous heterophase polymerization of styrene in the presence of cross-linking and porogen agents was carried out. Latexes with close to 20% solid content, which contained mesoporous nanoparticles with 28 nm in average diameters, up to 0.5 cm3/g in porosity
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