Search Within
Applied Filters:
Showing 1-30 of 222 results for "


" within Papers
Sort by Relevance
[Study indites calcium as a heart breaker. 30 % more myocardial infarcts caused by high dosage calcium preparations].
Kinderkrankenschwester : Organ der Sektion Kinderkrankenpflege, 32(3), 114-114 (2013-04-23)
Toshihiro Takashima et al.
Journal of photochemistry and photobiology. B, Biology, 152(Pt A), 139-145 (2015-02-05)
One challenge in artificial photosynthetic systems is the development of active oxygen evolution catalysts composed of abundant elements. The oxygen evolution activities of manganese pyrophosphate compounds were examined in electrochemical and photochemical experiments. Electrocatalysis using calcium-manganese pyrophosphate exhibited good catalytic
Green cement: Concrete solutions.
Ivan Amato
Nature, 494(7437), 300-301 (2013-02-22)
Domenico Russo et al.
Journal of nephrology, 28(1), 73-80 (2014-03-07)
Phosphorus is associated with mortality in patients with chronic kidney disease (CKD) not on dialysis, possibly through phosphorus-dependent vascular calcification. Although a phosphorus-restricted diet reduces serum phosphorus, it is unlikely that it reduces vascular calcification progression in CKD. This study
From quarry to temple.
Heather Pringle
Science (New York, N.Y.), 340(6134), 805-805 (2013-05-21)
Michael J Lawrence et al.
The Journal of experimental biology, 218(Pt 13), 2124-2135 (2015-05-20)
Relative to the gills, the mechanisms by which the kidney contributes to ammonia and acid-base homeostasis in fish are poorly understood. Goldfish were exposed to a low pH environment (pH 4.0, 48 h), which induced a characteristic metabolic acidosis and an increase
M G Brading et al.
International dental journal, 54(5 Suppl 1), 291-298 (2004-10-29)
To discuss the role of Triclosan in dentifrice systems and demonstrate the enhanced efficacy of Triclosan in calcium carbonate-based systems when the level of the antimicrobial agent is raised from 0.2% to 0.3%. Triclosan is the most commonly used antimicrobial
M A Fanovich et al.
Materials science & engineering. C, Materials for biological applications, 58, 204-212 (2015-10-20)
Investigation of an integrated supercritical fluid extraction and supercritical solvent impregnation process for fabrication of microporous polycaprolactone-hydroxyapatite (PCL-HA) scaffolds with antibacterial activity is presented. The HA content and particle size as well as the operating conditions of the integrated process
Jumah Masoud M Salmani et al.
Pharmaceutical development and technology, 20(4), 465-472 (2014-02-05)
Serious efforts have been made to overcome the bioavailability problems of ever increasing number of poorly soluble drugs, including atorvastatin (ATO); however, enhancing its gastric solubility has not received much attention. To improve the bioavailability of ATO by increasing its
Jingtan Su et al.
The Biochemical journal, 453(2), 179-186 (2013-05-08)
ACC (amorphous calcium carbonate) plays an important role in biomineralization process for its function as a precursor for calcium carbonate biominerals. However, it is unclear how biomacromolecules regulate the formation of ACC precursor in vivo. In the present study, we
Wei-Li Fu et al.
Tissue engineering. Part A, 21(5-6), 948-959 (2014-10-10)
Vascularization of engineered bone tissue is critical for ensuring its survival after implantation and it is the primary factor limiting its clinical use. A promising approach is to prevascularize bone grafts in vitro using endothelial progenitor cells (EPC) derived from
O V Zatsepina et al.
Gigiena i sanitariia, (5)(5), 37-40 (2013-12-18)
The results of studies of electrochemical indices of waters activated with structurally stressed calcium carbonate tension in micellar form during storage are presented and these indicators of water were shown to change over time. In this case, waters, having initially
Anne Handrini Dewi et al.
Journal of biomedical materials research. Part A, 103(10), 3273-3283 (2015-03-27)
Gypsum or calcium sulfate (CS) or plaster of Paris (POP) is considered as a fast degradable material that usually resorbs before the bone defect area is completely filled by new bone. In this study, the incorporation of CaCO3 hydrogel into
Johannes Ihli et al.
Chemical communications (Cambridge, England), 49(30), 3134-3136 (2013-03-13)
A simple synthetic method is presented for the precipitation of high purity, dry amorphous calcium carbonate (ACC) based on freeze-drying saturated, counter ion free CaCO3 solutions, where the ACC produced shows an extended atmospheric stability. Translation of the methodology to
Steve Weiner et al.
Connective tissue research, 44 Suppl 1, 214-218 (2003-09-04)
Many organisms from a wide variety of taxa produce amorphous calcium carbonate (ACC), despite the fact that it is inherently unstable and relatively soluble in its pure state. These properties also make it difficult to detect and characterize ACC. Raman
Yufei Ma et al.
Materials science & engineering. C, Materials for biological applications, 33(4), 2413-2420 (2013-03-19)
We report an interesting finding of calcium carbonate (CaCO3) crystal growth in the silk fibroin (SF) hydrogel with different concentrations by a simple ion diffusion method. The experimental results indicate that the CaCO3 crystals obtained from silk fibroin gels with
Jeana L Drake et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(10), 3788-3793 (2013-02-23)
It has long been recognized that a suite of proteins exists in coral skeletons that is critical for the oriented precipitation of calcium carbonate crystals, yet these proteins remain poorly characterized. Using liquid chromatography-tandem mass spectrometry analysis of proteins extracted
Polysaccharides and proteoglycans in calcium carbonate-based biomineralization.
José L Arias et al.
Chemical reviews, 108(11), 4475-4482 (2008-07-26)
Santoshkumar Biradar et al.
Journal of nanoscience and nanotechnology, 14(6), 4257-4263 (2014-04-18)
In this study, a novel approach to tailor the calcium carbonate nanoparticles was exploited based on agarose gel as polymer medium. The size of nanoparticles formed was governed by ionic diffusion and affected by weight percent of agarose and reaction
David N Mueller et al.
Nature communications, 6, 6097-6097 (2015-01-20)
Surface redox-active centres in transition-metal oxides play a key role in determining the efficacy of electrocatalysts. The extreme sensitivity of surface redox states to temperatures, to gas pressures and to electrochemical reaction conditions renders them difficult to investigate by conventional
Chia-Hua Lin et al.
Phytopathology, 104(10), 1012-1020 (2014-09-11)
The defense-related gene LsGRP1 exhibits an increased level of expression in Lilium spp. after being infected by Botrytis elliptica, the fungal pathogen of lily leaf blight. In this study, the expression profile of the LsGRP1 protein (a plant class II
Jamie Jones et al.
The Science of the total environment, 502, 434-447 (2014-10-04)
To support nutrient removal, various stormwater treatment technologies have been developed via the use of green materials, such as sawdust, tire crumbs, sand, clay, sulfur, and limestone, as typical constituents of filter media mixes. These materials aid in the physiochemical
Hongye Yang et al.
American journal of dentistry, 26(3), 137-142 (2013-08-31)
To evaluate (1) the effect of a desensitizing paste containing 8% arginine and calcium carbonate on the microtensile bond strength between dentin and etch-and-rinse adhesive systems; and (2) to examine the dentin tubules occlusion quantitatively. 48 freshly extracted intact human
Kazuhiro Taguchi et al.
SpringerPlus, 3, 6-6 (2015-02-13)
An estimation procedure for biobased carbon content of polyethylene composite was studied using carbon-14 ((14)C) concentration ratios as measured by accelerated mass spectrometry (AMS). Prior to the measurement, additives and fillers in composites should be removed because they often contain
Tuomas Mehtiö et al.
Carbohydrate research, 402, 102-110 (2014-12-17)
A series of copolyanhydrides, consisting of 2,3,4,5-tetra-O-acetylgalactaric acid (AGA) and adipic acid (AA) as monomer units, was polymerized. Synthesis of AGA monomer consisted of two steps. First, O-acetylation of galactaric acid secondary hydroxyl groups was performed using acetic anhydride as
Vishandas Suthar et al.
Environmental monitoring and assessment, 186(6), 3957-3968 (2014-02-12)
Natural and chemically enhanced phytoextraction potentials of maize (Zea mays L.) and sesbania (Sesbania aculeata Willd.) were explored by growing them on two soils contaminated with heavy metals. The soils, Gujranwala (fine, loamy, mixed, hyperthermic Udic Haplustalf) and Pacca (fine
Yasir S Elhassan et al.
Cell reports, 28(7), 1717-1728 (2019-08-15)
Nicotinamide adenine dinucleotide (NAD+) is modulated by conditions of metabolic stress and has been reported to decline with aging in preclinical models, but human data are sparse. Nicotinamide riboside (NR) supplementation ameliorates metabolic dysfunction in rodents. We aimed to establish
Maria Cristina Straccia et al.
Marine drugs, 13(5), 2890-2908 (2015-05-15)
In this work, a coating of chitosan onto alginate hydrogels was realized using the water-soluble hydrochloride form of chitosan (CH-Cl), with the dual purpose of imparting antibacterial activity and delaying the release of hydrophilic molecules from the alginate matrix. Alginate
Miina Ojansivu et al.
Acta biomaterialia, 21, 190-203 (2015-04-23)
Bioactive glasses are known for their ability to induce osteogenic differentiation of stem cells. To elucidate the mechanism of the osteoinductivity in more detail, we studied whether ionic extracts prepared from a commercial glass S53P4 and from three experimental glasses
Anthony J Giuffre et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(23), 9261-9266 (2013-05-22)
Calcified skeletons are produced within complex assemblages of proteins and polysaccharides whose roles in mineralization are not well understood. Here we quantify the kinetics of calcite nucleation onto a suite of high-purity polysaccharide (PS) substrates under controlled conditions. The energy
Page 1 of 8
Page 1 of 8