2012
DOI: 10.5923/j.ijmc.20120201.01
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<i>In </i><i>V</i><i>itro</i>Bioactivity of Collagen/Calcium Phosphate Silicate Composites, Cross-Linked with Chondroitin Sulfate

Abstract: In this work we present the experimental results on synthesis structure and in vitro bioactivity of collagen (C)/calcium phosphate silicate (CPS)/chondroitin sulfate (ChS) composites with C/CPS ratio of 25:75 wt. % and 75:25wt. %. The synthesized composites were characterized by XRD, FTIR and SEM/EDS. XRD and FTIR before in vitro test proved that the carbonate containing hydroxyapatite (CO 3 HA) formed in situ. After in vitro test for 3 days in 1.5 SBF, the nucleation of B-type CO 3 HA was estimated on the obt… Show more

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Cited by 12 publications
(14 citation statements)
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“…It is interesting to note that the AIM2B spectrum exhibits additional bands, sharp and of medium intensities, between 1000 and 400 cm 1 (located at 913, 538, 468 cm 1 ). To the best of our knowledge, and based on the existing bibliography, these bands suggest the presence of phosphate groups (PO4 3 ) (Radev et al, 2012). Thus, the band at 913 cm −1 can be assigned to the stretching P-O vibrations and those at 538 and 468 cm 1 can be related to the bending O-P-O vibrations of phosphate groups (Jastrzbski et al, 2011).…”
Section: Ft-ir Spectroscopymentioning
confidence: 79%
“…It is interesting to note that the AIM2B spectrum exhibits additional bands, sharp and of medium intensities, between 1000 and 400 cm 1 (located at 913, 538, 468 cm 1 ). To the best of our knowledge, and based on the existing bibliography, these bands suggest the presence of phosphate groups (PO4 3 ) (Radev et al, 2012). Thus, the band at 913 cm −1 can be assigned to the stretching P-O vibrations and those at 538 and 468 cm 1 can be related to the bending O-P-O vibrations of phosphate groups (Jastrzbski et al, 2011).…”
Section: Ft-ir Spectroscopymentioning
confidence: 79%
“…This band in the glass S75C16‐4 splits into 2 distinct peaks at 1085 and 1049 cm −1 , as a result of interaction of the carbon and silica . This is accompanied by the evolution of the 880 (879) cm −1 peak, related to the CO 3 2− group, which could be attributed to the substitution of phosphate ions in B‐type hydroxyapatite (HAp), which can even result in carbonate apatite. This is probably due to carbonate residues as this sample was synthesized with the higher amount of citric acid.…”
Section: Resultsmentioning
confidence: 99%
“…Bands at 1414 cm -1 (ASM1-2) can be attributed to δ(C−H) scissoring vibration while those at 1223 (ASM2), 1224 (ASM1) and 1225 cm -1 (AIM1) are assigned to amide III vibrations (CN stretching, NH bending). Moreover, the weak bands at 1124 cm -1 (ASM1-2) associated to the absorptions pointed at 537 and 576 cm -1 (shoulders), suggest the presence of phosphate groups (PO 4 3− ) [40] and can be related to P-O stretching and O-P-O bending vibrations, respectively [41]. Note that ASM1 and ASM2 spectra are almost superimposable and exhibit the same distribution of absorption bands with similar intensities, with only slight shifts.…”
Section: Ft-ir Spectroscopymentioning
confidence: 99%