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Showing 1-30 of 34 results for "307653" within Papers
Silvia Panzavolta et al.
Journal of inorganic biochemistry, 105(8), 1060-1065 (2011-07-06)
We previously proposed a biomimetic α-tricalcium phosphate (α-TCP) bone cement where gelatin controls the transformation of α-TCP into calcium deficient hydroxyapatite (CDHA), leading to improved mechanical properties. In this study we investigated the setting and hardening processes of biomimetic cements
Sarsvatkumar Patel et al.
International journal of pharmaceutics, 389(1-2), 66-73 (2010-01-20)
This work proposed to study the influence of varying compaction pressure on the plastic energy, elasticity (Young's modulus), particle yield strength, strain hardening, and applied pressures on derived Heckel parameter using material with different densification and deformation mechanisms: ibuprofen (IBN)
Daniel L Alge et al.
Biomedical materials (Bristol, England), 8(2), 025010-025010 (2013-02-23)
Dicalcium phosphate dihydrate (DCPD) cements are attractive biomaterials for bone repair, and a number of different DCPD cement formulations have been proposed in the literature. In this study, we have specifically compared monocalcium phosphate monohydrate (MCPM)/hydroxyapatite (HA) and MCPM/β-tricalcium phosphate
Daniel L Alge et al.
Journal of biomedical materials research. Part B, Applied biomaterials, 100(3), 595-602 (2012-02-11)
We previously showed that dicalcium phosphate dihydrate (DCPD) cements can be prepared using monocalcium phosphate monohydrate (MCPM) and hydroxyapatite (HA). In this study, we have characterized the degradation properties and biocompatibility of these novel cements. To study the degradation properties
Daniel M Moreira et al.
Urology, 82(4), 768-772 (2013-06-25)
To determine the differences in 24-hour urine composition between apatite and brushite stone formers. We conducted a retrospective review of 110 calcium phosphate (CaP) stone formers with both stone composition analysis and 24-hour urinalysis available. Analysis of 24-hour urine constituents
F Michaut et al.
Journal of pharmaceutical sciences, 99(6), 2874-2885 (2009-12-30)
The Stylcam 100R, a rotary press simulator, was designed to simulate speed profiles of rotary tablet presses. Such a simulator was qualified by numerous laboratories and, actually, its ability to be used for studying the behaviour of powders under pressure
Shinji Morimoto et al.
Biomedical materials (Bristol, England), 7(4), 045020-045020 (2012-06-29)
The present study was designed to investigate the extent to which calcium phosphate bone substitute materials, including osteoconductive octacalcium phosphate (OCP), display cytotoxic and inflammatory responses based on their dissolution in vitro. Hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP) ceramics, which
Guiling Zhang et al.
Journal of inorganic biochemistry, 113, 1-8 (2012-06-13)
Bisphosphonates (BPs) are a class of synthetic pyrophosphate analogs that can prevent the loss of bone mass, given orally to treat postmenopuasal osteoporosis. It is not clear yet if the benefits of BPs include the possibility of affecting bone apatitic
Osman Raif Karabacak et al.
Urology, 82(3), 532-537 (2013-08-31)
To evaluate the compositions of the kidney stones obtained from different regions of Turkey and to present the gender and regional differences. The study included 6453 kidney stones obtained from patients from different parts of Turkey. All of the stones
Decomposition and stabilization of the tablet excipient calcium hydrogenphosphate dihydrate.
De Haan P, et al.
Drug Development and Industrial Pharmacy, 16(13), 2031-2055 (1990)
Mazeyar Parvinzadeh Gashti et al.
Colloids and surfaces. B, Biointerfaces, 110, 426-433 (2013-06-14)
Brushite and octacalcium phosphate (OCP) crystals are well-known precursors of hydroxylapatite (HAp), the main mineral found in bone. In this report, we present a new method for biomimicking brushite and OCP using single and double diffusion techniques. Brushite and OCP
Daniel L Alge et al.
Journal of biomedical materials research. Part A, 100(7), 1792-1802 (2012-04-11)
Calcium phosphate cements have many desirable properties for bone tissue engineering, including osteoconductivity, resorbability, and amenability to rapid prototyping-based methods for scaffold fabrication. In this study, we show that dicalcium phosphate dihydrate (DCPD) cements, which are highly resorbable but also
Simo-Pekka Simonaho et al.
International journal of pharmaceutics, 409(1-2), 104-110 (2011-03-02)
Ultrasound transmission measurements were performed to evaluate the tensile strength of tablets. Tablets consisting of one ingredient were compressed from dibasic calcium phosphate dehydrate, two grades of microcrystalline cellulose and two grades of lactose monohydrate powders. From each powder, tablets
P Tschoppe et al.
Archives of oral biology, 54(9), 810-816 (2009-07-15)
In this in vitro study the effects of various calcium and phosphate additions to a commercially available saliva substitute on remineralization of demineralised dentin were investigated. Bovine dentin specimens (n=70) were prepared. Before and after demineralisation (37 degrees C, pH
L Obert et al.
Orthopaedics & traumatology, surgery & research : OTSR, 96(5), 574-578 (2010-07-17)
Five consecutive patients (mean age: 40.4 yrs (range, 19-58 yrs)), with symptomatic distal radius malunion underwent corrective opening wedge osteotomy using phosphate cement as an alternative to bone autograft, at a mean 9 months (4-16mo) of fracture. Internal fixation used
Shuji Noguchi et al.
International journal of pharmaceutics, 445(1-2), 93-98 (2013-02-05)
Computed tomography (CT) using synchrotron X-ray radiation was evaluated as a non-destructive structural analysis method for fine granules. Two kinds of granules have been investigated: a bromhexine hydrochloride (BHX)-layered Celphere CP-102 granule coated with pH-sensitive polymer Kollicoat Smartseal 30-D, and
Yuehua Guo et al.
Journal of molecular modeling, 16(7), 1187-1194 (2009-12-19)
The aim of this study is to investigate the interaction between dicalcium phosphate dihydrate (CaHPO(4) x 2H(2)O, DCPD) and Protocatechuic aldehyde (C(7)H(6)O(3), Pca), which is the water-soluble constituents of Chinese Medicine, Salvia Miltiorrhiza Bunge (SMB), by calculating the absorption energy
H Meyer-Lueckel et al.
Caries research, 44(2), 127-134 (2010-04-02)
The aim of the present study was to evaluate the effects of experimental saliva substitutes based on carboxymethyl cellulose (CMC) differing in degrees of saturation with respect to calcium phosphates on the mineral loss of enamel in vitro. Demineralized bovine
Ramin Rohanizadeh et al.
The Journal of oral implantology, 37(6), 659-672 (2010-07-29)
Bone morphogenetic proteins (BMPs) can induce the formation of new bone in numerous orthopedic and dental applications in which loss of bone is the main issue. The combination of BMP with a biomaterial that can carry and deliver proteins has
Peter Tschoppe et al.
Archives of oral biology, 56(8), 775-784 (2011-02-05)
Some saliva substitutes have been shown to demineralize dentine in vitro. This effect is counteracted by the application of various fluorides. In contrast, remineralizing saliva substitutes might be supported by these treatments, depending on the dynamics during remineralization. The aim
Van Viet Thai et al.
Journal of materials science. Materials in medicine, 21(6), 1867-1874 (2010-03-25)
In this study, an injectable bone substitute (IBS) consisting of citric acid, chitosan, and hydroxyl propyl methyl cellulose (HPMC) as the liquid phase and tetra calcium phosphate (TTCP), dicalcium phosphate dihydrate (DCPD) and calcium sulfate dehydrate (CSD, CaSO4 x 2H2O)
Verena Schnitzler et al.
Acta biomaterialia, 7(2), 759-770 (2010-09-22)
Combination of a bisphosphonate (BP) anti-osteoporotic drug, alendronate, with an apatitic calcium phosphate cement does not significantly affect the main properties of the biomaterial, in terms of injectability and setting time, provided that the BP is introduced chemisorbed onto calcium-deficient
Factors influencing additive interactions with calcium hydrogenphosphate dihydrate crystals.
Sikiric M, et al.
Langmuir, 16(24), 9261-9266 (2000)
S Tadier et al.
Acta biomaterialia, 7(4), 1817-1826 (2010-12-15)
In part I of this study we aim to evaluate and control the characteristics of the powders constituting the solid phase of a vaterite CaCO(3)-dicalcium phosphate dihydrate cement using a co-grinding process and to determine their impact on cement setting
A C Magalhães et al.
Caries research, 43(6), 474-483 (2009-12-18)
The aims of this study were: (1) to correlate surface (SH) and cross-sectional hardness (CSH) with microradiographic parameters of artificial enamel lesions; (2) to compare lesions prepared by different protocols. Fifty bovine enamel specimens were allocated by stratified randomisation according
J Tonannavar et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 154, 20-26 (2015-10-27)
We present in this paper accurate and reliable Raman and IR spectral identification of mineral constituents in nine samples of renal calculi (kidney stones) removed from patients suffering from nephrolithiasis. The identified mineral components include Calcium Oxalate Monohydrate (COM, whewellite)
Dong Chen et al.
Journal of orthopaedic surgery and research, 6, 56-56 (2011-11-08)
Uncemented fixation of components in joint arthroplasty is achieved primarily through de novo bone formation at the bone-implant interface and establishment of a biological and mechanical interlock. In order to enhance bone-implant integration osteoconductive coatings and the methods of application
Faleh Tamimi et al.
Acta biomaterialia, 8(8), 3161-3169 (2012-04-24)
Dicalcium phosphate dihydrate (brushite) is an osteoconductive biomaterial with great potential as a bioresorbable cement for bone regeneration. Preset brushite cement can be dehydrated into dicalcium phosphate anhydrous (monetite) bioceramics by autoclaving. This heat treatment results in changes in the
Chikage Kato et al.
Dental materials journal, 30(5), 583-597 (2011-09-29)
The studies so far conducted by our colleagues in relation to dental pulp capping using adhesive resins revealed that the adhesive resins are useful for capping exposed pulps but are a little slower to take effect on the injured pulp
Andrew M Cassidy et al.
Journal of pharmaceutical sciences, 101(4), 1496-1507 (2012-01-17)
Atomic force microscopy (AFM) cantilevers were functionalized with particles of dicalcium phosphate dihydrate (DCP), and AFM, in force-displacement mode, was used to bring these probes into contact with aspirin (100) and (001) surfaces in order to investigate the effect of
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