Showing 1-30 of 88 results for "45993"
Daniela Saviello et al.
Analytica chimica acta, 843, 59-72 (2014-08-26)
Synchrotron-based Fourier transform infrared micro-spectroscopy (SR-μFTIR) 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 (3×3 μm(2)) molecular maps were...
José 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...
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...
Jerry L Campbell et al.
Methods in molecular biology (Clifton, N.J.), 929, 439-499 (2012-09-26)
Physiologically based pharmacokinetic (PBPK) models differ from conventional compartmental pharmacokinetic models in that they are based to a large extent on the actual physiology of the organism. The application of pharmacokinetics to toxicology or risk assessment requires that the toxic...
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...
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...
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...
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)
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...
A comprehensive evaluation of the potential health risks associated with occupational and environmental exposure to styrene.
Joshua T Cohen et al.
Journal of toxicology and environmental health. Part B, Critical reviews, 5(1-2), 1-265 (2002-05-16)
Taicheng An et al.
ACS applied materials & interfaces, 4(11), 5988-5996 (2012-11-08)
The carbon nanotube (CNT)-sub-micrometer-sized anatase TiO₂ sphere composite photocatalysts were synthesized by a facile one-step hydrothermal method using titanium tetrafluoride as titanium source and CNTs as structure regulator. Various technologies including X-ray diffraction, UV-visible absorption spectra, N₂ adsorption-desorption, scanning electron...
Gregory S Doerk et al.
Nature communications, 5, 5805-5805 (2014-12-17)
Block copolymer directed self-assembly is an attractive method to fabricate highly uniform nanoscale features for various technological applications, but the dense periodicity of block copolymer features limits the complexity of the resulting patterns and their potential utility. Therefore, customizability of...
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...
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...
Mária Poláková 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...
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...
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...
Valeria S Garcia et al.
Colloids and surfaces. B, Biointerfaces, 101, 384-391 (2012-09-27)
The physical adsorption and the chemical coupling of recombinant proteins of Trypanosoma cruzi onto polystyrene and core-shell carboxylated particles were respectively investigated with the ultimate aim of producing latex-protein complexes to be used in an immunoagglutination assay able to detect...
Michał 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 (GC×GC) 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...
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...
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...
You Jin Choi et al.
Journal of chromatography. A, 1314, 306-312 (2013-09-26)
Solution styrene-butadiene rubber (SSBR) is mainly constituted of a random copolymer of styrene and butadiene. SSBR usually contains microgels, having ultrahigh molecular weight (M>10(7)g/mol), affecting rheological properties of the rubber. Thus, determinations of M and size distribution of these microgels...
Evert Boymans et al.
Dalton transactions (Cambridge, England : 2003), 42(1), 137-142 (2012-10-30)
Usually the Rh-catalyzed hydroformylation of styrene predominantly yields the branched, chiral aldehyde. An inversion of regioselectivity can be achieved using strong π-acceptor ligands. Binaphthol-based diphosphite and bis(dipyrrolyl-phosphorodiamidite) ligands were applied in the Rh-catalyzed hydroformylation of styrene. High selectivities up to...
I Capek
Advances in colloid and interface science, 92(1-3), 195-233 (2001-10-05)
The principal subject discussed in the current paper is the radical polymerization of styrene in the three- and four component microemulsions stabilized by a cationic emulsifier. Polymerization in the o/w microemulsion is a new polymerization technique which allows to prepare...
Aisling Mooney et al.
Applied microbiology and biotechnology, 72(1), 1-1 (2006-07-11)
Large quantities of the potentially toxic compound styrene are produced and used annually by the petrochemical and polymer-processing industries. It is as a direct consequence of this that significant volumes of styrene are released into the environment in both the...
E Roemer et al.
Regulatory toxicology and pharmacology : RTP, 70 Suppl 1, S2-14 (2014-12-17)
This publication introduces a series of six other publications describing the toxicological assessment of kretek cigarettes, i.e., cigarettes characterized primarily by the use of a significant amount of cloves as an ingredient added to the tobacco. This paper presents background...
ChengXiao Wang et al.
AAPS PharmSciTech, 13(4), 1179-1189 (2012-09-11)
A novel drug-in-adhesive matrix was designed and prepared. A thermoplastic elastomer, styrene-isoprene-styrene (SIS) block copolymer, in combination with tackifying resin and plasticizer, was employed to compose the matrix. Capsaicin was selected as the model drug. The drug percutaneous absorption, adhesion...
Sandra Ritz et al.
Biomacromolecules, 16(4), 1311-1321 (2015-03-21)
Understanding nanoparticle-protein interactions is a crucial issue in the development of targeted nanomaterial delivery. Besides unraveling the composition of the nanoparticle's protein coronas, distinct proteins thereof could control nanoparticle uptake into specific cell types. Here we differentially analyzed the protein...
Seon Ju Yeo et al.
Soft matter, 11(8), 1582-1588 (2015-01-17)
Colloidal photonic crystals (CPCs) provide a convenient way to generate structural colour with high stability against degradation under environmental factors. For a number of applications including flexible electronic and energy devices, it is important to generate flexible structural colour that...

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

MilliporeSigma

Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.