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显示 1-30 #N/A 34 条结果 关于 "T5508" 范围 论文
Laura Marcela Forero Ramirez et al.
Carbohydrate polymers, 245, 116457-116457 (2020-07-29)
Early detection of thrombotic events remains a big medical challenge. Dextran-based submicronic particles bearing Gd(DOTA) groups and functionalized with fucoidan have been produced via a simple and green water-in-oil emulsification/co-crosslinking process. Their capacity to bind to human activated platelets was
Graziano Baccolini et al.
Chemical communications (Cambridge, England), 47(12), 3640-3642 (2011-02-10)
Adenosine monophosphate isomers are obtained by self-assembling of adenine, D-ribose and trimetaphosphate in aqueous solution in good yields. This generation of a ribonucleotide from its three molecular components occurs in a one-pot reaction at room temperature for about 30-40 days
Y Mizutani et al.
Journal of materials science. Materials in medicine, 16(8), 709-712 (2005-06-21)
Carbonate containing hydroxyapatite (CO3HAp) is one of the candidate materials as a bioresorbable bone substitute. In the present work, CO3HAp was efficiently prepared by a hydrothermal treatment of calcium tripolyphosphate gel with urea at 140 degrees C for 24 h.
Li-sha Gu et al.
Dental materials : official publication of the Academy of Dental Materials, 26(11), 1077-1089 (2010-08-07)
Type I collagen alone cannot initiate tissue mineralization. Sodium trimetaphosphate (STMP) is frequently employed as a chemical phosphorylating reagent in the food industry. This study examined the feasibility of using STMP as a functional analog of matrix phosphoproteins for biomimetic
Jonas Johannes Christ et al.
Analytical biochemistry, 548, 82-90 (2018-02-27)
Polyacrylamide gel electrophoresis, being the current method of choice for length determination of inorganic polyphosphate (polyP), requires a sequencing apparatus, relies on commercially not available polyP length standards and yields only a chain length distribution. State of the art polyP
M M Manarelli et al.
Caries research, 45(6), 506-509 (2011-10-05)
The effect of mouth rinses containing fluoride (100 μg/ml) and sodium trimetaphosphate (TMP) on enamel erosion was evaluated in vitro. Bovine enamel blocks were subjected to erosive challenges 4 times per day for 5 min, followed by treatment with placebo
L Gu et al.
Journal of dental research, 90(1), 82-87 (2010-10-14)
Inability of chemical phosphorylation of sodium trimetaphosphate to induce intrafibrillar mineralization of type I collagen may be due to the failure to incorporate a biomimetic analog to stabilize amorphous calcium phosphates (ACP) as nanoprecursors. This study investigated adsorption/desorption characteristics of
Nesrine Riahi et al.
Carbohydrate polymers, 161, 219-227 (2017-02-13)
Dextran is one of the hydrophilic polymers that is used for hydrogel preparation. As any polysaccharide, it presents a high density of hydroxyl groups, which make possible several types of derivatization and crosslinking reactions. Furthermore, dextran is an excellent candidate
Nisit Kittipongpatana et al.
Pakistan journal of pharmaceutical sciences, 24(4), 415-420 (2011-10-01)
The main purposes of this study are to prepare cross-linked carboxymethyl jackfruit starch (CL-CMJF) and to evaluate its pharmaceutical property as a tablet disintegrant. CL-CMJF was prepared by a dual carboxymethyl-crosslinking reaction in a flask containing jackfruit seed starch (JFS)
S K Sungur et al.
Journal of chromatography. A, 874(2), 311-317 (2000-05-19)
The distribution coefficients of rare earth elements and thorium with Dowex 2-X8, 200-400 mesh, a strongly basic anion-exchange resin, have been determined regarding four different concentrations of sodium trimetaphosphate (3 x 10(-3), 5 x 10(-3), 7 x 10(-3) and 0.01
E M Takeshita et al.
Caries research, 43(1), 50-56 (2009-01-29)
One way to reduce dental fluorosis is by reducing the fluoride (F) concentration in dentifrice, but low-F dentifrice should be as effective as a standard dentifrice. This study evaluated in vitro whether the supplementation with sodium trimetaphosphate (TMP) of a
Fabíola Garavello Prezotti et al.
Drug development and industrial pharmacy, 38(11), 1354-1359 (2012-01-19)
High amylose and pectin were mixed at 1:1 mass ratio and cross-linked with sodium trimetaphosphate (STMP) in alkaline medium. Films were prepared from aqueous dispersions of these cross-linked polymer blend at three different concentrations (3, 4 and 5%), by solvent
B S F Cury et al.
International journal of pharmaceutics, 371(1-2), 8-15 (2009-01-07)
High amylose cross-linked to different degrees with sodium trimetaphosphate by varying base strength (2% or 4%) and contact time (0.5-4h) was evaluated as non-compacted systems for sodium diclophenac controlled release. The physical properties and the performance of these products for
E Grazi et al.
Biochimica et biophysica acta, 1525(1-2), 130-135 (2001-05-09)
Skeletal muscle myosin displays two independent and equivalent binding sites for 1,N6 ethenoadenosine diphosphate, with a dissociation constant of 24.7 microM. MgADP, 10 to 40 microM, behaves as a pure competitive type inhibitor (K(SI)=8-9 microM) for the binding of 1,N6
Yan Liu et al.
Dental materials : official publication of the Academy of Dental Materials, 27(5), 465-477 (2011-03-01)
This study examined the use of sodium trimetaphosphate (STMP) as a biomimetic analog of matrix phosphoproteins for remineralization of artificial carious-affected dentin. Artificial carious lesions with lesion depths of 300±30μm were created by pH-cycling. 2.5% hydrolyzed STMP was applied to
S Sungur
Annali di chimica, 91(5-6), 313-318 (2001-08-18)
The stability constants of the complexes formed between the rare earth metal ions and the anion of trimetaphosphoric acid have been determined at a temperature of 20 degrees C and an ionic strength of mu = 0.1 by the ion-exchange
Meimei Liu et al.
Drug delivery, 14(6), 397-402 (2007-08-19)
Hydrogel systems of konjac glucomannan (KGM) cross-linked with trisodium trimetaphosphate (STMP) were prepared for colon-targeting drug delivery. Swelling degrees of the hydrogels were measured in artificial gastrointestinal fluids and in sodium chloride solution with different concentrations to study their dependence
Jessica Bollyn et al.
Journal of agricultural and food chemistry, 64(45), 8465-8473 (2016-10-19)
Iron oxyhydroxide nanoparticles (Fe-NPs) are natural vectors of phosphate (PO
Marisol Zuluaga Tamayo et al.
Marine drugs, 17(6) (2019-06-19)
(1) Background: Reperfusion injury refers to the cell and tissue damage induced, when blood flow is restored after an ischemic period. While reperfusion reestablishes oxygen supply, it generates a high concentration of radicals, resulting in tissue dysfunction and damage. Here
Marcelle Danelon et al.
American journal of dentistry, 26(1), 15-20 (2013-06-04)
To evaluate the capability of gels with low fluoride (F) concentration and supplemented with sodium trimetaphosphate (TMP) to promote in situ enamel remineralization. Bovine enamel blocks were selected on the basis of their surface hardness after demineralization, and divided into
Brendan J Holland et al.
Analytica chimica acta, 842, 35-41 (2014-08-17)
Sodium polyphosphate is commonly used to enhance chemiluminescence reactions with acidic potassium permanganate through a dual enhancement mechanism, but commercially available polyphosphates vary greatly in composition. We have examined the influence of polyphosphate composition and concentration on both the dual
Fernanda M Carbinatto et al.
International journal of pharmaceutics, 423(2), 281-288 (2011-12-20)
Pectin-high amylose starch mixtures (1:4; 1:1; 4:1) were cross-linked at different degrees and characterized by rheological, thermal, X-ray diffraction and NMR analyses. For comparison, samples without cross-linker addition were also prepared and characterized. Although all samples behaved as gels, the
Iliana Diamanti et al.
Journal of dentistry, 39(9), 619-628 (2011-07-16)
The aim of this in vitro study was to assess the effect of toothpastes containing three different sodium fluoride concentrations and a calcium sodium phosphosilicate system, on root dentine demineralization and remineralization. During a fourteen-day pH-cycling protocol, pre-softened bovine root
Nophawan Paradee et al.
Materials science & engineering. C, Materials for biological applications, 118, 111346-111346 (2020-12-02)
Transdermal drug delivery systems (TDDS) are used as an alternative route to deliver drugs into the blood system for therapy. The matrix materials that have been widely used in TDDS are hydrogels. The dextran hydrogels were prepared by the solution
Dhanya Narayanan et al.
Drug delivery and translational research, 9(5), 867-878 (2019-03-25)
This study reports the development of a nanoformulation of diclofenac sodium, a potent non-steroidal anti-inflammatory drug, at its clinical dose, utilizing a FDA approved polymer, hydroxyethyl starch. The study specifically focused on the control of pharmacokinetics, pharmacodynamics, and biodistribution by
V Kolb et al.
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life, 27(5-6), 485-503 (2001-09-07)
Bilateral surface-active minerals with excess positive charge concentrate glycolate and trimetaphosphate ion from l0(-3) m aqueous solution to half-saturation of the internal surface sites, and induce phosphorylation of glycolate ion in the mineral with trimetaphosphate, sorbed from l0(-2) m solution.
E M Takeshita et al.
Caries research, 45(5), 494-497 (2011-09-29)
Trimetaphosphate (TMP) effects on demineralized bovine enamel were studied after 15 days of pH cycling. Treatments included 30 wt% (weight percent) dilutions of 0, 500, 1,500 or 3,000 μg F/g aqueous NaF solutions with or without 3% TMP. Treated specimens
Stéphane Lack et al.
Carbohydrate research, 342(7), 943-953 (2007-02-17)
An NMR spectroscopy study ((31)P, (1)H, (13)C) of the postulated crosslinking mechanism of sodium trimetaphosphate (STMP) on polysaccharides is reported using methyl alpha-D-glucopyranoside as a model. In a first step, reaction of STMP with Glc-OMe gives grafted sodium tripolyphosphate (STPP(g)).
Delphine Machy et al.
Journal of biomaterials science. Polymer edition, 13(8), 963-975 (2002-12-05)
It is essential that a synthetic vascular graft is preclotting prior to implantation in order to prevent blood leaking through the graft wall. We have impregnated a knitted polyester prosthesis with cross-linked dextran. The aim of this study was to
M J Moretto et al.
Caries research, 44(2), 135-140 (2010-04-02)
It has been suggested that fluoride products are able to reduce erosive tooth wear. Thus, the purpose of this in vitro study was to evaluate the effect of dentifrices with different fluoride concentrations as well as of a low-fluoridated dentifrice
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