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关键词:'71345'
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Innovative monitoring of atmospheric gaseous hydrogen fluoride
Dugheri S, et al.
International Journal of Analytical Chemistry, 2016(10) (2016)
Dana J Levine et al.
ACS chemical biology, 10(5), 1269-1277 (2015-02-20)
The phosphotungstate anion (PTA) is widely used to facilitate the precipitation of disease-causing prion protein (PrP(Sc)) from infected tissue for applications in structural studies and diagnostic approaches. However, the mechanism of this precipitation is not understood. In order to elucidate
Hui Chan Kwak et al.
Biochemical pharmacology, 96(3), 256-266 (2015-06-07)
The present study was aimed to investigate the metabolomics of sulfur amino acids in Zucker diabetic fatty (ZDF) rats, an obese type 2 diabetic animal model. Plasma levels of total cysteine, homocysteine and methionine, but not glutathione (GSH) were markedly
Igor Jerković et al.
Chemistry & biodiversity, 12(7), 1047-1056 (2015-07-15)
The present study is focused on the antioxidant capacity and chemical profiling of eight Croatian Satureja montana L. honey samples. Among the 20 compounds obtained by headspace solid-phase microextraction (HS-SPME) and identified by GC-FID and GC/MS analyses, hotrienol was predominant
Anna Turabelidze et al.
PloS one, 9(9), e101480-e101480 (2014-09-10)
Keratinocytes cover both the skin and some oral mucosa, but the morphology of each tissue and the behavior of the keratinocytes from these two sites are different. One significant dissimilarity between the two sites is the response to injury. Oral
Chunli Zheng et al.
International journal of pharmaceutics, 475(1-2), 17-24 (2014-08-28)
In this study, magneto-responsive polyelectrolyte multilayer microcapsules were successfully prepared by the formation of shell with biocompatible iron oxide nanoparticles (Fe₃O₄ NPs) and polyallylamine hydrochloride (PAH) by layer-by-layer (LbL) self-assembly technique. The self-assembled microcapsules were characterized by SEM, TEM and
Blassan Plackal Adimuriyil George et al.
BioMed research international, 2015, 165037-165037 (2015-06-17)
Plants and plant derived products exert chemopreventive effects on various cancer cell lines by the induction of cell death mechanisms. The effects of root acetone extract of Rubus fairholmianus (RFRA) on the proliferation of human colorectal cancer (Caco-2) cells have
Lizhen Qiao et al.
Journal of chromatography. A, 1360, 240-247 (2014-08-19)
Glucaminium-based ionic liquids are a new class of recently developed ionic liquids and prepared by functionalizing the amine group of N-methyl-d-glucamine, which renders them good hydrophilicity due to the presence of the glucose structure and charged quaternary ammonium group. In
Nadine Schlueter et al.
Archives of oral biology, 57(9), 1176-1182 (2012-05-05)
The eroded organic dentine matrix is remarkably resistant to mechanical impacts. Additional brushing abrasion of eroded dentine has only limited influence on tissue loss. Digestive enzymes (e.g., pepsin, trypsin) that can reach the oral cavity during reflux or vomiting can
Christian Wölk et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 16(10), 2115-2126 (2015-05-12)
The aggregation behavior of a cationic lipid, N-[6-amino-1-oxo-1-(N-tetradecylamino)hexan-(2S)-2-yl]-N'-{2-[N,N-bis(2-aminoethyl)amino]ethyl}-2,2-ditetradecylpropandiamide (DiTT4), is investigated in aqueous dispersions at different pH values (5, 7.3, and 10). An unusual aggregation behavior is observed whereby DiTT4 forms bilayer structures at pH 10 and 7.3. At pH
Phillip L Thompson et al.
Water environment research : a research publication of the Water Environment Federation, 85(4), 327-330 (2013-05-24)
The acetate uptake bioassay (AUB) is a predictive measure for determining the stability of anaerobic digesters, but its use is rare due to the limited availability of gas chromatography equipment at wastewater treatment facilities. A water displacement system was compared
Myung-Chul Chung et al.
The Biochemical journal, 470(2), 243-253 (2015-07-19)
In addition to membrane disruption, the cathelicidin antimicrobial peptide (AMP) LL-37 translocates through the bacterial inner membrane to target intracellular molecules. The present study aims to identify an alternate mechanism and a cytoplasmic target of LL-37 in Francisella. LL-37 binding
Camila Figueiredo Pinzan et al.
PloS one, 10(11), e0143087-e0143087 (2015-11-18)
Toxoplasmosis, a zoonotic disease caused by Toxoplasma gondii, is an important public health problem and veterinary concern. Although there is no vaccine for human toxoplasmosis, many attempts have been made to develop one. Promising vaccine candidates utilize proteins, or their
Juha P Kotimaa et al.
Journal of immunological methods, 419, 25-34 (2015-03-04)
The complement system is an essential component of our innate immunity, both for the protection against infections and for proper handling of dying cells. However, the complement system can also contribute to tissue injury and inflammatory responses. In view of
Gilles Provencher et al.
Journal of chromatography. A, 1348, 97-104 (2014-05-20)
Bisphenol A (BPA) and triclosan (TCS) are ubiquitous environmental phenols exhibiting endocrine disrupting activities that may be involved in various health disorders in humans. There is a need to measure separately free forms and conjugated metabolites because only the former
Sayantani Dutta et al.
Journal of bioscience and bioengineering, 120(1), 17-23 (2015-01-27)
Black pepper (Piper nigrum L.), the King of Spices is the most popular spice globally and its active ingredient, piperine, is reportedly known for its therapeutic potency. In this work, enzyme-assisted supercritical carbon dioxide (SC-CO2) extraction of black pepper oleoresin
Felipe Jiménez-Aspee et al.
Food chemistry, 194, 908-919 (2015-10-17)
The Chilean raspberry Rubus geoides Sm. (Rosaceae) is a native species occurring in the Patagonia. Five R. geoides samples were assessed for phenolic content and composition, antioxidant activity, effect on total reduced glutathione (GSH) synthesis and protective effect against H2O2
Prashant Kumar et al.
Journal of chromatography. A, 1356, 105-116 (2014-07-16)
Kafirin is a natural, hydrophobic and celiac safe prolamin protein obtained from sorghum seeds. Today kafirin is found to be useful in designing delayed delivery systems and coatings of pharmaceuticals and nutraceuticals where its purity is important and this can
Kai Luo et al.
Journal of chromatography. A, 1379, 51-55 (2015-01-04)
While urinary 3-hydroxybenzo[a]pyrene (3-OHBaP) can indicate exposure to carcinogenic benzo[a]pyrene (BaP) in humans, most previous analytical methods could not detect it in the general population due to a lack of sufficient sensitivity. In this study, a new liquid chromatography-electrospray mass-mass
Shekhar U Kadam et al.
Ultrasonics sonochemistry, 23, 308-316 (2014-12-03)
The objective of this study was to investigate the effect of key extraction parameters of extraction time (5-25 min), acid concentration (0-0.06 M HCl) and ultrasound amplitude (22.8-114 μm) on yields of bioactive compounds (total phenolics, fucose and uronic acid)
Zhengzong Wu et al.
Food chemistry, 194, 671-679 (2015-10-17)
The application of attenuated total reflectance infrared spectroscopy (ATR-IR), Raman spectroscopy (RS) and combination of ATR-IR and RS for measurements of total antioxidant capacity (TAC) and total phenolic content (TPC) of Chinese rice wine (CRW) were investigated in this study.
Nor Nadiah Abdul Karim Shah et al.
Journal of food science and technology, 52(8), 5057-5065 (2015-08-06)
The purpose of this study is to investigate the changes occured on phenolic compounds between two Malaysian varieties of pummelo fruit juice: Ledang (PO55) and Tambun (PO52) post-enzymatic clarification. The changes in polyphenols composition were monitored using High Performance Liquid
Congwu He et al.
The New phytologist, 206(3), 1051-1062 (2015-01-24)
Silicon (Si) plays a large number of diverse roles in plants, but the structural and chemical mechanisms operating at the single-cell level remain unclear. We isolate the cell walls from suspension-cultured individual cells of rice (Oryza sativa) and fractionate them
Azadeh Nilghaz et al.
Lab on a chip, 12(1), 209-218 (2011-11-18)
This paper describes the fabrication of microfluidic cloth-based analytical devices (μCADs) using a simple wax patterning method on cotton cloth for performing colorimetric bioassays. Commercial cotton cloth fabric is proposed as a new inexpensive, lightweight, and flexible platform for fabricating
Yuan Cao et al.
Proteomics, 12(2), 251-262 (2011-11-23)
Efforts to characterize proteins found in the outer membrane (OM) of Gram-negative bacteria have been steadily increasing due to the promise of expanding our understanding of fundamental bacterial processes such as cell adhesion or cell wall biogenesis as well as
Bo Tian et al.
Journal of materials science. Materials in medicine, 25(9), 2059-2068 (2014-05-27)
In order to improve the biocompatibility of metallic implants, bioactive components are often used as coatings so that a real bond with the surrounding bone tissue can be formed. We prepared ethyl cellulose/carbonated hydroxyapatite composite coatings (ECHCs) on Ti6Al4V substrates
Sodium Carbonate: A Versatile Material (2000)
Mahmoud N Taha et al.
Journal of chromatography. A, 1394, 137-147 (2015-04-08)
Extraction parameters, chemical fingerprint, and the single compounds' activity levels were considered for the selection of active botanicals. For an initial survey, the total bioactivity (i.e., total reducing capacity, total flavonoids contents and free radical scavenging capacity) of 21 aqueous
Sara Castiglioni et al.
International journal of food sciences and nutrition, 66(5), 491-497 (2015-05-29)
The influence of commonly used steeping times and temperatures, as well as leaf size on the antioxidant activity and sensory attributes of tea were studied. Five unblended white and green tea samples from China and Malawi, infused in hot (70 °C
Milena Veskovic et al.
Experimental biology and medicine (Maywood, N.J.), 240(4), 418-425 (2014-09-07)
Deficiency in methionine or choline can induce oxidative stress in various organs such as liver, kidney, heart, and brain. This study was to examine the effects of alpha-lipoic acid (LA) on oxidative stress induced by methionine and choline deficiency (MCD)
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