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Showing 1-30 of 32 results for "76130" within Papers
Luo Mi et al.
Biomaterials, 31(10), 2919-2925 (2010-01-05)
In this work, we report a tunable mixed-charge copolymer surface containing positively charged quaternary amine monomers ([2-(acryloyloxy)ethyl] trimethyl ammonium chloride, TMA) and negatively-charged carboxylic acid monomers (2-carboxy ethyl acrylate, CAA). The non-fouling properties of this copolymer coating depend on environmental
Stanisław Popiel et al.
Analytica chimica acta, 837, 52-63 (2014-07-09)
Novel solid-phase microextraction (SPME) fibres containing methyl, ethyl, butyl acrylate and methacrylate were first prepared by a sol-gel technique and investigated for determination of selected organoarsenic compounds (lewisite, methyldichloroarsine, phenyldichloroarsine, diphenylchloroarsine and triphenylarsine) from water samples. The influence of sorption
Junliang Wu et al.
Journal of the American Chemical Society, 131(39), 13888-13889 (2009-09-15)
The direct cross-coupling of quinoline-N-oxides with olefin derivatives has been realized using palladium acetate as the catalyst in the absence of external ligand and oxidant to give the corresponding 2-alkenylated quinolines and 1-alkenylated isoquinolines chemo- and regioselectively in 27-95% yield.
José Carlos Rodríguez Hernández et al.
Macromolecular bioscience, 9(8), 766-775 (2009-05-08)
The influence of the surface fraction of OH groups on fibrinogen (FG) adsorption is investigated in copolymers of ethyl acrylate and hydroxy ethylacrylate. The amount of adsorbed FG, quantified by western-blotting combined with image analysis of the corresponding bands, decreases
M Monier et al.
Journal of hazardous materials, 176(1-3), 348-355 (2009-12-08)
The graft copolymerization of ethyl acrylate (EA) onto natural wool fibers initiated by potassium persulphate and Mohr's salt redox initiator system in limited aqueous medium was carried out in heterogeneous media. Ester groups of the grafted copolymers were partially converted
Bin Wu et al.
Huan jing ke xue= Huanjing kexue, 32(12), 3647-3652 (2012-04-04)
A new quality and quantity analyzing method for waste gas from chemical industry, especially for acrylic acid ester using air-sampling combined with GC/MS and honeywell air purifier system was firstly advanced in this paper. According to the experiments, the maximum
Ursula Pérez-Ramírez et al.
Computer methods in biomechanics and biomedical engineering, 18(4), 446-455 (2013-08-21)
Anisotropy is one of the most meaningful determinants of biomechanical behaviour. This study employs micro-computed tomography (μCT) and image techniques for analysing the anisotropy of regenerative medicine polymer scaffolds. For this purpose, three three-dimensional anisotropy evaluation image methods were used:
Anionic polymerization of ethyl acrylate initiated by tetrabutylammonium azide: direct synthesis of end-clickable polyacrylate
Kataoka Y, et al.
Polym. Chem. (2017)
Anna E V Hagström et al.
Biotechnology and bioengineering, 102(3), 693-699 (2008-09-30)
An OH-functional polyester has been acrylated via transesterification of ethyl acrylate, catalyzed by Candida antarctica lipase B (CalB) in two different preparations: Novozym 435 and immobilized on Accurel MP1000. The batch process resulted in incomplete acrylation as well as severe
Ying Lai et al.
Se pu = Chinese journal of chromatography, 30(1), 21-26 (2012-06-07)
A reliable gas chromatography-mass spectrometry (GC-MS) method was developed for the determination of 9 residual acrylic monomers (methyl acrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, n-butyl acrylate, butyl methacrylate, styrene, acrylic acid and methacrylic acid) in acrylic resins. Solid resin
Ikram Ullah Khan et al.
International journal of pharmaceutics, 473(1-2), 239-249 (2014-06-24)
A side-by-side capillaries microfluidic device was developed to fabricate drug loaded poly(acrylamide)/poly(methyl acrylate) Janus particles in the range of 59-240 μm by UV-assisted free radical polymerization. This system was characterized in terms of continuous and dispersed phases flow rates (Qc/Qd)
Ethyl acrylate.
IARC monographs on the evaluation of carcinogenic risks to humans, 71 Pt 3, 1447-1457 (1999-09-07)
Seiichiro Fujisawa et al.
Dental materials journal, 28(6), 722-729 (2009-12-19)
It has been established that the toxicity of acrylate and methacrylate monomers is driven by their reactivity towards glutathione (GSH). With this relationship, the objective of this study was to predict the GSH reactivity of dental methacrylate monomers, and hence
M Shahjahan Kabir et al.
The Journal of organic chemistry, 77(1), 300-310 (2011-11-15)
The stereospecific synthesis of aryloxy and amino substituted E- and Z-ethyl-3-acrylates is of interest because of their potential in the polymer industry and in medicinal chemistry. During work on a copper-catalyzed cross-coupling reaction of ethyl (E)- and (Z)-3-iodoacrylates with phenols
Aaron Mark Drucker et al.
Dermatitis : contact, atopic, occupational, drug, 22(2), 98-101 (2011-04-21)
Acrylates are present in a wide variety of products and cause occupational and non-occupational allergic contact dermatitis. There is no clear guidance from the literature as to which allergens should be used for patch-test screening for acrylates. To characterize patients
Shao-Hsien Huang et al.
Molecules (Basel, Switzerland), 15(1), 315-330 (2010-01-30)
A water-soluble and air-stable Pd(NH3)2Cl2/cationic 2,2'-bipyridyl system was found to be a highly-efficient and reusable catalyst for the coupling of aryl iodides and alkenes in neat water using Bu(3)N as a base. The reaction was conducted at 140 degrees C
Xuetuan Wei et al.
Applied biochemistry and biotechnology, 168(7), 1753-1764 (2012-09-19)
This study presents a novel and integrated preparation technology for nattokinase functional food, including strain screening, fermentation, separation, and encapsulation. To rapidly screen a nattokinase-productive strain, PCR-based screening method was combined with fibrinolytic activity-based method, and a high productive strain
Marilene S Oliveira et al.
Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 10(10), 1546-1555 (2011-07-08)
Singlet molecular oxygen O(2)((1)Δ(g)) is a potent oxidant that can react with different biomolecules, including DNA, lipids and proteins. Many polycyclic aromatic hydrocarbons have been studied as O(2)((1)Δ(g)) chemical traps. Nevertheless, a suitable modification in the polycyclic aromatic ring must
Sadanand Pandey et al.
International journal of biological macromolecules, 49(4), 527-535 (2011-06-23)
Graft copolymer of xanthan gum (XG) and ethylacrylate (EA) has been synthesized by free radical polymerization using potassium peroxydisulfate (KPS) as an initiator in an air atmosphere. The grafting parameters, i.e. grafting ratio and efficiency decrease with increase in concentration
M Shahjahan Kabir et al.
Bioorganic & medicinal chemistry, 18(12), 4178-4186 (2010-06-12)
Novel acrylic acid ethyl ester derivatives were synthesized and evaluated as potential agents against Mycobacterium species. A versatile and efficient copper-catalyzed coupling process was developed and used to prepare a library of substituted acrylic acid ethyl ester analogs. Minimum inhibitory
João M S de Barros et al.
Journal of pharmaceutical sciences, 103(7), 2022-2032 (2014-05-08)
Live bacterial cells (LBCs) are administered orally as attenuated vaccines to deliver biopharmaceutical agents and as probiotics to improve gastrointestinal (GI) health. However, LBCs present unique formulation challenges and must survive GI antimicrobial defenses including gastric acid after administration. We
Jun Zhao et al.
Dental materials : official publication of the Academy of Dental Materials, 27(5), 478-486 (2011-03-08)
The objective of this study was to synthesize and characterize novel hyperbranched poly(acrylic acid)s via atom-transfer radical polymerization (ATRP) technique and tether the photo-curable methacrylate onto the poly(acrylic acid), use these polymers to formulate the resin-modified glass-ionomer cements, and evaluate
J C O Villanova et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 79(3), 664-673 (2011-09-29)
The design of new excipients that extend the release of drugs from tablets over prolonged periods is essential in reaching enhanced therapeutic performances. In this sense, the objective of this study was to develop new excipients, based on acrylic monomers
Jiaan Shao et al.
Organic letters, 14(21), 5452-5455 (2012-10-26)
Palladium-catalyzed C-H functionalization using guanidine as the directing group was achieved under mild reaction conditions. Various guanidine derivatives were produced in moderate to good yields by using simple unactivated arenes or ethyl acrylate as the source of arylation or olefination
Kaija Lammintausta et al.
Contact dermatitis, 62(2), 88-96 (2010-02-09)
Chairs and sofas imported from China to Europe were shown to contain dimethyl fumarate (DMF), a sensitizing, volatile chemical. Many of the sensitized patients also had positive patch test reactions to acrylates. To analyse the occurrence and strength of DMF
Akemi Ryoda et al.
The Journal of organic chemistry, 73(1), 133-141 (2007-12-08)
(+/-)-1,2-Bis(2-methylphenyl)ethylene-1,2-diamine, prepared from benzil and ammonium acetate, was optically resolved as a chiral framework for 2-(1-benzyl-2-hydroxyethyl)imino-1,3-dimethylimidazolidine with 2-methylphenyl pendants at the 4,5-positions. Catalysis ability of the 1,3-dimethyl-4,5-bis(2-methylphenyl)imidazolidine and the related 1,3-dibenzyl-4,5-diphenylimidazolidine was examined in the asymmetric Michael reaction of t-butyl
Gary M Williams et al.
Regulatory toxicology and pharmacology : RTP, 53(1), 6-15 (2008-10-22)
Ethyl acrylate (EA) is an acrylic monomer used in the manufacture of a variety of polymers and copolymers as components of many commercially important products. Human exposure to EA occurs primarily in the workplace via inhalation or dermal contact. In
Hien The Ho et al.
Macromolecular rapid communications, 33(20), 1753-1758 (2012-07-13)
A new azlactone-derived trithiocarbonate is prepared and used as a chain-transfer agent to mediate the reversible addition-fragmentation chain transfer (RAFT) polymerization of styrene, ethyl acrylate, and N-isopropyl acrylamide. Well-defined polymers with controlled molecular weights (M(n) = 1000-7000 g mol(-1)
Victoria S Coker et al.
ACS nano, 4(5), 2577-2584 (2010-04-17)
Precious metals supported on ferrimagnetic particles have a diverse range of uses in catalysis. However, fabrication using synthetic methods results in potentially high environmental and economic costs. Here we show a novel biotechnological route for the synthesis of a heterogeneous
D Timothy Anstine et al.
Monatshefte fur chemie, 145(7), 1117-1135 (2014-08-12)
Three new linear pentapyrrole rubinoid analogs: 2,3,7,8,17,18,22,23-octamethyl-12,13-bis-(2-carboxyethyl)-1,10,15,24,25,27,28,29-octahydro-27H-pentapyrrin-1,24-dione and 2,3,8,12,13,17,22,23-octamethyl-7,18-bis-(2-carboxyethyl)-1,10,15,24,25,26,27,28,29-octahydro-27H-pentapyrrin-1,24-dione, and its 7,18-dihexanoic acid analog were synthesized, respectively, from 2,3,7,8-tetramethyl-(10H)-dipyrrin-2-one, from 2,3,8-trimethyl-7-[2-(methoxycarbonyl)ethyl]-(10H)-dipyrrinone, and 2,3,8-trimethyl-7-[5-(methoxycarbonyl)pentyl]-(10H)-dipyrrinone. 13C NMR and 1H NMR measurements in (CD3)2SO confirmed the pentapyrrole structures, while 1H NMR data indicate
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