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Thomas Brinzer et al.
The Journal of chemical physics, 142(21), 212425-212425 (2015-06-08)
The CO2ν3 asymmetric stretching mode is established as a vibrational chromophore for ultrafast two-dimensional infrared (2D-IR) spectroscopic studies of local structure and dynamics in ionic liquids, which are of interest for carbon capture applications. CO2 is dissolved in a series
Thomas D Bennett et al.
Nature communications, 6, 8079-8079 (2015-09-01)
Hybrid glasses connect the emerging field of metal-organic frameworks (MOFs) with the glass formation, amorphization and melting processes of these chemically versatile systems. Though inorganic zeolites collapse around the glass transition and melt at higher temperatures, the relationship between amorphization
Xiaoqin Huang et al.
Food chemistry, 166, 62-67 (2014-07-24)
The conformational changes of the glycated ovalbumin were studied by hydrogen/deuterium exchange coupled with high resolution mass spectrometry technique (HDX-MS). After incubation with glucose at 50 °C for 6 h, 9 glycated peptides were detected and the corresponding glycation sites
Aneta Panuszko et al.
Physical chemistry chemical physics : PCCP, 14(45), 15765-15773 (2012-10-25)
In this paper, the hydration of a model protein--hen egg white lysozyme in aqueous solution has been presented. The leading method used was FTIR spectroscopy with an application of a technique of semi-heavy water (HDO) isotope dilution. Analysis of spectra
Anindya Sarkar et al.
The Journal of biological chemistry, 290(35), 21615-21628 (2015-07-03)
Heat shock protein 90 (hsp90) drives heme insertion into the β1 subunit of soluble guanylate cyclase (sGC) β1, which enables it to associate with a partner sGCα1 subunit and mature into a nitric oxide (NO)-responsive active form. We utilized fluorescence
Di Gao et al.
ACS applied materials & interfaces, 7(24), 13524-13537 (2015-05-29)
Ultrasound as an external stimulus for enhanced gene transfection represents a safe, noninvasive, cost-effective delivery strategy for gene therapy. Herein, we have developed an ultrasound-triggered phase-transition cationic nanodroplet based on a novel perfluorinated amphiphilic poly(amino acid), which could simultaneously load
Lei Hou et al.
Soft matter, 11(35), 7059-7065 (2015-08-08)
The UCST-type transition of poly(acrylamide-co-acrylonitrile) (P(AAm-co-AN)) (molar fraction of AN: 13.3%; PDI = 3.2) in H2O and D2O is explored and compared by applying turbidity, DLS as well as FTIR measurements. The transition temperature of P(AAm-co-AN) in D2O is observed
Jae-Min Ha et al.
Soft matter, 11(29), 5821-5827 (2015-06-11)
We have investigated the distributions of individually isolated and hydrophilically functionalized single-walled carbon nanotubes (p-SWNTs) in the Pluronic L121-water system at the reverse hexagonal phase using small-angle X-ray scattering (SAXS) and contrast-matched small-angle neutron scattering (SANS) measurements. As the p-SWNT-L121-water
Yuntao Dai et al.
Food chemistry, 187, 14-19 (2015-05-16)
Previously it was demonstrated that natural deep eutectic solvents (NADES) are promising green solvents for the extraction of natural products. However, despite their potential, an obvious disadvantage of NADES is the high viscosity. Here we explored the dilution effect on
Christina O'Rourke et al.
Annals of botany, 116(2), 225-236 (2015-06-27)
During evolution, plants have acquired and/or lost diverse sugar residues as cell-wall constituents. Of particular interest are primordial cell-wall features that existed, and in some cases abruptly changed, during the momentous step whereby land-plants arose from charophytic algal ancestors. Polysaccharides
Nella Barshteyn et al.
Chemical research in toxicology, 22(5), 918-925 (2009-03-26)
Previously, our laboratory has shown that hydroxymethylvinyl ketone (HMVK), a Michael acceptor oxidation product of the 1,3-butadiene metabolite, 3-butene-1,2-diol, readily reacts with hemoglobin at physiological conditions and that mass spectrometry of trypsin-digested peptides suggested adduct formation with various nucleophilic amino
Suvimol Surassmo et al.
Colloids and surfaces. B, Biointerfaces, 130, 229-236 (2015-05-06)
Mucoadhesive poly (lactic-co-glycolic acid) (PLGA) nanoparticles having a modified shell-matrix derived from polyvinyl alcohol (PVA) and Carbopol (CP), a biodegradable polymer coating, to improve the adhesion and cell transfection properties were developed. The optimum formulations utilized a CP concentration in
Merrell A Johnson et al.
The Journal of membrane biology, 248(4), 695-703 (2015-02-19)
We show that the interaction of aromatic amino acids with lipid bilayers can be characterized by conventional 1D [Formula: see text]H NMR spectroscopy using reference spectra obtained in isopropanol-d8/D[Formula: see text]O solutions. We demonstrate the utility of this method with
Liset Westera et al.
Methods in molecular biology (Clifton, N.J.), 979, 107-131 (2013-02-12)
Humans have a remarkable ability to maintain relatively constant lymphocyte numbers across many decades, from puberty to old-age, despite a multitude of infectious and other challenges and a dramatic decline in thymic output. This phenomenon, lymphocyte homeostasis, is achieved by
Еlena А Santalova et al.
Lipids, 50(1), 57-69 (2014-12-17)
Nine new cerebrosides 1a-d, 2a, 2b, 3a-c were found in the extract of a Far-Eastern glass sponge Aulosaccus sp. (class Hexactinellida). These β-D-glucopyranosyl-(1 → 1)-ceramides contain sphingoid bases (2S,3S,4R,11Z)-2-aminoeicos-11-ene-1,3,4-triol (in 1a-d), (2S,3S,4R,13Z)-2-aminoeicos-13-ene-1,3,4-triol (in 2a, b) and (2S,3S,4R,13S*,14R*)-2-amino-13,14-methylene-eicosane-1,3,4-triol (in 3a-c), which
Masahiko Terauchi et al.
Macromolecular bioscience, 15(7), 953-964 (2015-03-27)
Although bone morphogenetic protein-2 (BMP-2) has received considerable attention because of its strong osteoinductivity, the clinical application of BMP-2 is limited due to its degradation and deactivation under physiological conditions. Negatively charged heparin is known to form polyelectrolyte complexes with
Anirban Ghosh et al.
Biochemistry, 54(13), 2249-2261 (2015-03-19)
Molecular self-assembly, a phenomenon widely observed in nature, has been exploited through organic molecules, proteins, DNA, and peptides to study complex biological systems. These self-assembly systems may also be used in understanding the molecular and structural biology which can inspire
Longyan Zhao et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(27), 8284-8289 (2015-06-24)
Selective inhibition of the intrinsic coagulation pathway is a promising strategy for developing safer anticoagulants that do not cause serious bleeding. Intrinsic tenase, the final and rate-limiting enzyme complex in the intrinsic coagulation pathway, is an attractive but less explored
Ripen Misri et al.
Nanomedicine : nanotechnology, biology, and medicine, 11(7), 1785-1795 (2015-05-20)
We report the synthesis and characterization of a polymeric nanoparticle (NP) based on hyperbranched polyglycerol (HPG) containing a hydrophobic core and a hydrophilic shell, and assessed its suitability to be developed as a systemic anticancer drug carrier. HPG NP displayed
Alicia Lammerts van Bueren et al.
Applied and environmental microbiology, 81(12), 3973-3983 (2015-04-05)
Probiotic microorganisms are ingested as food or supplements and impart positive health benefits to consumers. Previous studies have indicated that probiotics transiently reside in the gastrointestinal tract and, in addition to modulating commensal species diversity, increase the expression of genes
Yanfen Fu et al.
Applied microbiology and biotechnology, 99(10), 4397-4408 (2015-01-27)
Systems metabolic engineering has made the renewable production of industrial chemicals a feasible alternative to modern operations. One major example of a renewable process is the production of carboxylic acids, such as octanoic acid (C8), from Escherichia coli, engineered to
S Lerch et al.
Journal of animal science, 93(9), 4463-4472 (2015-10-07)
Deuterium oxide dilution space (DOS) determination is one of the most accurate methods for in vivo estimation of ruminant body composition. However, the time-consuming vacuum sublimation of blood preceding infrared spectroscopy analysis, which is traditionally used to determine deuterium oxide
Oliver Wahl et al.
Journal of pharmaceutical and biomedical analysis, 95, 1-10 (2014-03-19)
For the impurity profiling of the mucolytic and anti-inflammatory drug carbocisteine a high performance liquid chromatographic (HPLC) method using corona charged aerosol detection (CAD) was developed and fully validated following the ICH guideline Q2(R1). The response was linear (R²>0.995) over
Guanhua Yang et al.
Biopolymers, 104(1), 11-20 (2014-12-05)
Caveolin-1 is a main structural component of caveolae and essential for the invagination of caveolae by forming a hairpin-shaped structure in the membrane-inserting domain (residues, 102-122). In this article, we determined the tertiary structures of the peptides comprising residues 93-126
Andreina Ricci et al.
Journal of mass spectrometry : JMS, 50(1), 228-234 (2015-01-21)
Understanding on a molecular level the acid-catalysed decomposition of the sugar monomers from hemicellulose and cellulose (e.g. glucose, xylose), the main constituent of lignocellulosic biomass is very important to increase selectivity and reaction yields in solution, key steps for the development
Chinwe Duru et al.
Biologicals : journal of the International Association of Biological Standardization, 43(2), 110-116 (2015-01-24)
Lyophilized Influenza antigen reference reagents are a critical resource in the quality control of influenza vaccines. A standard formulation has been used successfully at NIBSC for many years however, following the unexpected occurrence of a collapsed appearance in a particular
Paul Stevenson et al.
The Journal of chemical physics, 142(21), 212424-212424 (2015-06-08)
Gramicidin D is a short peptide which dimerizes to form helical pores, adopting one of two conformations in the process. These conformations differ primarily in number of residues per turn and the hydrogen-bond registry between rungs of the helix. Using
Yaoqing Diana Liu et al.
Protein science : a publication of the Protein Society, 23(12), 1753-1764 (2014-09-30)
Human IgG2 consists of disulfide-mediated structural isoforms, classified by the number of Fab arms disulfide-linked to the heavy chain hinge. In the IgG2-B isoform, both Fab arms are linked to the hinge region, and in IgG2-A, neither Fab arm are
Nan Zhang et al.
Pharmaceutical research, 31(9), 2326-2334 (2014-03-07)
To evaluate the therapeutic efficacy of dexamethasone (DM) and methotrexate (MTX) entrapped within polysialic acid (PSA)-trimethyl chitosan (TMC) nanoparticles using an in vitro model of rheumatoid arthritis (RA). The loading capacity of the PSA-TMC nanoparticles was determined. An RA in
Frank J Symons et al.
Pain medicine (Malden, Mass.), 16(2), 249-256 (2014-09-23)
Assessing and treating pain in nonverbal children with developmental disabilities are a clinical challenge. Current assessment approaches rely on clinical impression and behavioral rating scales completed by proxy report. Given the growing health relevance of the salivary metabolome, we undertook
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