Showing 1-30 of 394 results for "452882"
Xavier Matabosch et al.
Drug testing and analysis, 7(8), 663-672 (2014-12-30)
Glucocorticosteroids are prohibited in sports when administered by systemic routes and allowed using other administrations for therapeutic reasons. Therefore, markers to distinguish between routes of administration through the analysis of urine samples are needed in anti-doping control. As a first...
Semira Unal Yeşiller et al.
Analytica chimica acta, 770, 7-17 (2013-03-19)
A laser induced breakdown spectrometry hyphenated with on-line continuous flow hydride generation sample introduction system, HG-LIBS, has been used for the determination of arsenic, antimony, lead and germanium in aqueous environments. Optimum chemical and instrumental parameters governing chemical hydride generation...
Rita Bastos et al.
Carbohydrate polymers, 124, 322-330 (2015-04-04)
The cell wall polysaccharides of brewers spent yeast Saccharomyces pastorianus (BSY) and the inoculum yeast (IY) were studied in order to understand the changes induced by the brewing process. The hot water and alkali extractions performed solubilized mainly mannoproteins, more...
Shigeto Ikemura et al.
Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 33(4), 563-571 (2014-11-28)
The purpose of this study was to examine the effect of tenascin-C (TNC) on the repair of full-thickness osteochondral defects of articular cartilage in vivo. We used a gellan-gellan-sulfate sponge (Gellan-GS) to maintain a TNC-rich environment in the cartilage defects....
Yan Ni Annie Soh et al.
Drug testing and analysis, 6(7-8), 696-704 (2014-02-28)
The evolving nature of new psychoactive substances (NPS) - often referred to as 'legal highs', 'designer drugs' or 'bath salts' - presents an evolving challenge for toxicologists. Apart from the detection and identification of these compounds, further analytical challenges may...
Simone Hanna Brütsch et al.
Antioxidants & redox signaling, 22(4), 281-293 (2014-10-15)
Glutathione peroxidases (Gpx) and lipoxygenases (Alox) are functional counterplayers in the metabolism of hydroperoxy lipids that regulate cellular redox homeostasis. Gpx4 is a moonlighting protein that has been implicated not only as an enzyme in anti-oxidative defense, gene expression regulation...
M Hashimoto et al.
Journal of dental research, 94(8), 1085-1091 (2015-06-05)
Nanoparticles (NPs) are currently the focus of considerable attention for dental applications; however, their biological effects have not been fully elucidated. The long-term, slow release of matrix metalloproteases (MMPs) digests collagen fibrils within resin-dentin bonds. Therefore, MMP inhibitors can prolong...
Changping Zheng et al.
Carbohydrate polymers, 130, 113-121 (2015-06-17)
The flowers of Chrysanthemum morifolium were extracted by boiling water, and a water-soluble polysaccharide (CMJA0S2) with a molecular weight of 6.5 kDa was isolated by anion-exchange chromatography on a DEAE-cellulose column and gel permeation chromatography on a Sephacryl S-300 HR...
Shibani Dalal et al.
Nucleic acids research, 36(2), 411-422 (2007-11-28)
Approximately 30% of human tumors characterized to date express DNA polymerase beta (pol beta) variant proteins. Two of the polymerase beta cancer-associated variants are sequence-specific mutators, and one of them binds to DNA but has no polymerase activity. The Leu22Pro...
In Hwan Lee et al.
The Analyst, 140(10), 3543-3550 (2015-04-08)
Water-soluble fluorescent silver nanoclusters (NCs) formed on biomolecule ligands have been extensively studied due to their great potential as new biocompatible fluorescent materials for biosensors. As synthetic ligands, proteins in particular can provide unique structures and functions to the assembled...
H Zheng et al.
Brain structure & function, 220(5), 3011-3022 (2014-07-12)
The expression of a vesicular glutamate transporter (VGLUT) suffices to assign a glutamatergic phenotype to neurons and other secretory cells. For example, intestinal L cells express VGLUT2 and secrete glutamate along with glucagon-like peptide 1 (GLP1). We hypothesized that GLP1-positive...
Qifei Cong et al.
Carbohydrate research, 393, 43-50 (2014-06-03)
COB1B1S2 was isolated from an alkaline extract of Cassia obtusifolia seeds, and purified by anion-exchange and gel permeation chromatography. It contains arabinose, xylose, and glucuronic acid, in the molar ratio of 5:81:14, with an apparent molecular weight estimated to be...
Xia Xiang et al.
Talanta, 141, 182-187 (2015-05-13)
We have developed a label-free fluorescence sensor for caffeic acid (CA) by the use of CdTe:Zn(2+) quantum dots (CdTe:Zn(2+) QDs) as an output signal. The principle of sensor is based on the fluorescence quenching and binding properties of Fe(2+) toward...
Gautam Das et al.
International journal of nanomedicine, 10 Spec Iss, 165-178 (2015-09-09)
In this work, three different spherulitic nanostructures Cu-CuOA, Cu-CuOB, and Cu-CuOC were synthesized in water-in-oil microemulsions by varying the surfactant concentration (30 mM, 40 mM, and 50 mM, respectively). The structural and morphological characteristics of the Cu-CuO nanostructures were investigated...
Ching-Wei Tung et al.
Nature communications, 6, 8106-8106 (2015-09-01)
Electrochemically converting water into oxygen/hydrogen gas is ideal for high-density renewable energy storage in which robust electrocatalysts for efficient oxygen evolution play crucial roles. To date, however, electrocatalysts with long-term stability have remained elusive. Here we report that single-crystal Co3O4...
Aitor Sánchez-Ferrero et al.
Biomaterials, 68, 42-53 (2015-08-13)
Bone tissue engineering demands alternatives overcoming the limitations of traditional approaches in the context of a constantly aging global population. In the present study, elastin-like recombinamers hydrogels were produced by means of carbodiimide-catalyzed crosslinking with citric acid, a molecule suggested...
Qinghua Cui et al.
Analytica chimica acta, 724, 86-91 (2012-04-10)
Silver nanoclusters (Ag NCs) templated with DNAs have attracted much attention as novel fluorophores because of their convenient emission tunability by the sequence and length of the template DNAs. However, the precise production of Ag NCs in a site-specific manner...
Suk Ho Bhang et al.
Biomaterials, 55, 33-43 (2015-05-03)
At high concentrations, manganese (Mn) promotes cellular neurodevelopment but causes toxicity. Here, we report that Mn ion at high concentrations can be delivered to pheochromocytoma 12 (PC12) cells using gold nanoparticles (AuNPs) to enhance cellular neurodevelopment without toxicity. Mn(2+) release...
Ya-Yao Huang et al.
EJNMMI research, 4(1), 71-71 (2015-06-28)
[(18) F]AFM is a potent and promising PET imaging agent for the serotonin transporter. We carried out an acute toxicity study in rats and radiation dosimetry in monkeys before the translation of the tracer to humans. Single- and multiple-dose toxicity studies...
Mengjuan Hua et al.
Analytica chimica acta, 888, 173-181 (2015-09-01)
We herein proposed a simple and effective strategy for preparing graphene quantum dots (GQDs)-based core-satellite hybrid spheres and further explored the feasibility of using such spheres as the ratiometric fluorescence probe for the visual determination of Hg(2+). The red-emitting CdTe...
S Bag et al.
Organic & biomolecular chemistry, 13(6), 1763-1767 (2014-12-17)
Spectroscopic and in cellulo studies are here reported on the very first BODIPY-luminol chemiluminescent resonance energy-transfer (CRET) cassette where the luminol CL agent is covalently linked to the BODIPY energy-transfer acceptor in a molecular dyad. The efficiency of intramolecular CRET...
Daniel J Modulevsky et al.
PloS one, 9(5), e97835-e97835 (2014-05-21)
There are numerous approaches for producing natural and synthetic 3D scaffolds that support the proliferation of mammalian cells. 3D scaffolds better represent the natural cellular microenvironment and have many potential applications in vitro and in vivo. Here, we demonstrate that...
Jizhi Lin et al.
Nanoscale, 7(32), 13663-13670 (2015-07-28)
We report the controlled synthesis of [Au25(PPh3)10(SR1)5X2](2+) nanorods (H-SR1: alkyl thiol, H-SC2H4Ph and H-S(n-C6H13)) and Au25(SR2)18 nanospheres (H-SR2: aromatic thiol, H-SPh and H-SNap) under the one-phase thiol etching reaction of the polydisperse Aun(PPh3)m parent-particles (core diameter: 1.3 ± 0.4 nm...
Elissa M Grzincic et al.
ACS nano, 9(7), 6801-6816 (2015-06-30)
Gold nanomaterials are intensively studied for applications in disease detection, diagnosis and therapeutics, and this has motivated considerable research to determine their interaction with biomolecules, cells and cell behaviors. However, few studies look at how nanomaterials alter the extracellular matrix...
Marta N Sanz-Ortiz et al.
ACS nano, 9(10), 10489-10497 (2015-09-16)
Noble metal nanoparticles are widely used as probes or substrates for surface enhanced Raman scattering (SERS), due to their characteristic plasmon resonances in the visible and near-IR spectral ranges. Aiming at obtaining a versatile system with high SERS performance, we...
Saeideh Ebrahimiasl et al.
Journal of food science and technology, 52(9), 5982-5988 (2015-09-08)
In this research copper nanoparticles (Cu NPs) were incorporated in the biodegradable hydroxypropyl methylcellulose (HPMC) matrix using the simple and low cost chemical reduction method for application as food packaging material. The properties of Cu/HPMC bionanocomposites (BNCs) were studied as...
H Gül Akıllıoğlu et al.
Journal of agricultural and food chemistry, 62(46), 11289-11295 (2014-11-05)
This study aimed to investigate the effects of hydrophobic and ionic interactions on glycation of native and high-shear treated casein during heating. Casein-epicatechin and casein-calcium complexes were formed and glycated with glucose at different temperatures ranging from 70 to 150...
Minghuan Wang et al.
Nanoscale, 5(17), 7913-7919 (2013-07-16)
Herein, we report the preparation of poly (cyclotriphosphazene-co-4,4'-sulfonyldiphenol) (PZS) nanotubes decorated with Ag nanoparticles (NPs). The PZS nanotubes have been synthesized firstly via an in situ template approach, and then Ag nanoparticles were prepared via in situ reduction of AgNO3...
A Convenient One-Pot Conversion of-Protected Amino Acids and Peptides into Alcohols
Kokotos G
Synthesis, 1990(4), 299-301 (1990)
Li Li et al.
Journal of fluorescence, 25(4), 897-905 (2015-04-26)
Based on the quenching of the fluorescence intensity of thioglycolic acid (TGA)-capped core-shell CdTe/ZnS nanoparticles (NPs) by vanillin, a novel, simple and rapid method for the determination of vanillin was proposed. In aqueous medium, the functionalized core-shell CdTe/ZnS NPs were...

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