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显示 1-30 共 34 条结果 关于 "T5508" 范围 论文
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
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
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)
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Alberto Carlos Botazzo Delbem et al.
Journal of applied oral science : revista FOB, 20(1), 94-98 (2012-03-23)
Because of the growing concerns regarding fluoride ingestion by young children and dental fluorosis, it is necessary to develop new dentifrices. The aim of this study was to evaluate the effect of dentifrices with calcium citrate (Cacit) and sodium trimetaphosphate
Jessica Pereira et al.
Biopreservation and biobanking, 17(1), 2-10 (2018-09-06)
Cryopreservation provides an efficient way to preserve cells for a broad range of medical applications, including cell therapy. In clinical practice, cells are frozen in solutions containing dimethyl sulfoxide (DMSO) cryoprotectant agents (CPAs) to reduce their damage during the cooling
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
R S Lanigan
International journal of toxicology, 20 Suppl 3, 75-89 (2002-01-05)
These inorganic polyphosphate salts all function as chelating agents in cosmetic formulations. In addition, Sodium Metaphosphate functions as an oral care agent, Sodium Trimetaphosphate as a buffering agent, and Sodium Hexametaphosphate as a corrosion inhibitor. Only Sodium Hexametaphosphate is currently
Effect of drying technique on some physical properties of cross-linked high amylose/pectin mixtures.
Grazielle A Soares et al.
Drug development and industrial pharmacy, 39(2), 284-289 (2012-04-24)
Polymers mixtures as well as cross-linking reactions are approaches that have been used successfully to modulate the polymers characteristics in order to improve the control over drug release rate. High amylose and pectin are polysaccharides frequently used to prepare drug
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)).
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