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Karin A Zemski Berry et al.
European journal of mass spectrometry (Chichester, England), 16(3), 463-470 (2008-01-01)
Recently, a derivative of PE, namely the 4-(dimethylamino)benzoic acid derivative has been developed with various isotope labeled variants that provided a universal precursor ion scan for diacyl, ether and plasmalogen PE lipids that can not be accomplished otherwise. This derivative
Karin A Zemski Berry et al.
Analytical chemistry, 81(16), 6633-6640 (2010-03-27)
A set of four (D(0), D(4), D(6), and D(10)) deuterium enriched 4-(dimethylamino)benzoic acid (DMABA) N-hydroxysuccinimide (NHS) ester reagents was developed that react with the primary amine group of glycerophosphoethanolamine (PE) lipids to create derivatives where all subclasses of DMABA labeled
Weidong Dai et al.
Analytical and bioanalytical chemistry, 406(18), 4325-4335 (2014-05-13)
Hepatocellular carcinoma (HCC) is the fifth most common cancer in the world. Discovery of novel biomarkers for early HCC from other liver diseases such as cirrhosis is of great clinical benefit. In this study, a novel steroid hormone metabolomic method
William F Regnault et al.
Journal of materials science. Materials in medicine, 19(2), 507-515 (2007-07-11)
Urethane dimethacrylate (UDMA), an oligomeric poly(ethylene glycol) extended UDMA (PEG-U) and a blend of UDMA/PEG-U were chosen as model systems for introducing both hydrophobic and hydrophilic segments and a range of compliances in their derived polymers. Experimental composites based on
W Spahl et al.
Journal of dentistry, 26(2), 137-145 (1998-04-16)
The purpose of our study was to determine the quality and quantity of leachable residual (co)monomers and additives eluted from various commercial dental composite resins after polymerization. Polymerized specimens from four universal hybrid-type composite resins were eluted for 3 days
Mitchell P Thayer et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 84(1), 227-232 (2011-10-14)
The local environment dictates the structural and functional properties of many important chemical and biological systems. The impact of pH on the photophysical properties of a series of para-aminobenzoic acids is examined using a combination of experimental spectroscopy and quantum
Ming Tian et al.
Dental materials : official publication of the Academy of Dental Materials, 24(2), 235-243 (2007-06-19)
To investigate the reinforcement of Bis-GMA/TEGDMA dental resins (without conventional glass filler) and composites (with conventional glass filler) with various mass fractions of nano fibrillar silicate (FS). Three dispersion methods were studied to separate the silanized FS as nano-scaled single
Adilson Y Furuse et al.
Dental materials : official publication of the Academy of Dental Materials, 27(5), 497-506 (2011-03-11)
To evaluate the influence of different tertiary amines on degree of conversion (DC), shrinkage-strain, shrinkage-strain rate, Knoop microhardness, and color and transmittance stabilities of experimental resins containing BisGMA/TEGDMA (3:1wt), 0.25wt% camphorquinone, 1wt% amine (DMAEMA, CEMA, DMPT, DEPT or DABE). Different
Slow-acting amine polymerization accelerators. Para-dimethylaminobenzoic acid and its ethyl ester.
J M Antonucci et al.
Journal of dental research, 60(7), 1325-1331 (1981-07-01)
P V Argade et al.
Biochemistry, 23(2), 299-304 (1984-01-17)
The imidazole of chromophoric p-(dimethylamino)benzoic acid, DABIm, reacts with the serine protease alpha-chymotrypsin in the pH range of 4-7 to form a stable acyl intermediate that gives very good resonance-enhanced Raman spectra. The resonance Raman and absorption spectra of the
Xinglin Guo et al.
Dental materials : official publication of the Academy of Dental Materials, 24(6), 824-831 (2007-11-30)
The purpose of this study was to evaluate the effects of photoinitiator type and water content on the polymerization rate (Rp) and degree of conversion (DC) of a model BisGMA/HEMA-based resin. The comonomer mixture consisted of BisGMA/HEMA (60/40 by weight).
Xiaoming Xu et al.
Dental materials : official publication of the Academy of Dental Materials, 22(11), 1014-1023 (2005-12-28)
The aims of this study were to formulate a novel fluoride-releasing dental composite and to evaluate its mechanical properties, fluoride release and recharge capabilities, water sorption and solubility. A fluoride-releasing dimethacrylate monomer containing a ternary zirconium fluoride chelate was synthesized.
Y B Jiang et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 56(4), 623-627 (2000-05-04)
Photoinduced intramolecular charge transfer (ICT) of p-N,N-dimethylaminobenzoic acid (DMABOA) in AOT/cyclohexane/H2O reverse micelle was investigated and compared with that in CTAB/1-heptanol/H2O reverse micelle. It is proposed that the DMABOA molecule exists at the AOT reverse micelle water pool interface with
Csaba Kósa et al.
Journal of fluorescence, 22(5), 1371-1381 (2012-06-26)
The adducts of simple chromophore 4-N,N-dimethylamino benzoic acid with 2,2,6,6-tetrametyl-4-hydroxy- or 4-amino-piperidine were examined as fluorescence probes (spin double sensors) to monitor radical processes. The links in the adducts were either an ester or amide group, and the sterically hindered
Y Hino et al.
Journal of analytical toxicology, 24(3), 165-169 (2000-04-25)
A sensitive and reliable method was developed for the determination of tetracaine and its metabolite, p-butylaminobenzoic acid, in human samples. Tetracaine and the metabolite, effectively extracted using a liquid-liquid extraction procedure from 0.5 g of sample, were analyzed by gas
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