2010
DOI: 10.1016/j.jinorgbio.2010.06.009
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Divalent Mn in calcium hydroxyapatite by pulse laser deposition

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Cited by 10 publications
(6 citation statements)
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“…The main 2p 3/2 peak can be assigned to the positions of MnO at 640.3-641.4 eV or Mn 2 O 3 at 641.5-641.7 eV, which correspond to Mn 2+ or Mn 3+ valance states respectively. 48 However, MnO has a satellite feature (∼645 eV) for 2p 3/2 and (∼657 eV) for 2p 1/2 which is not present for either Mn 2 O 3 or MnO 2 , 49,50 so confirming the presence of Mn 2+ ions in the synthesized samples. As the difference of binding energy of different Mn ions are very small therefore low concentration of Mn 3+ can be excluded and divalent Mn ions should be dominating.…”
Section: Xps Analysismentioning
confidence: 80%
“…The main 2p 3/2 peak can be assigned to the positions of MnO at 640.3-641.4 eV or Mn 2 O 3 at 641.5-641.7 eV, which correspond to Mn 2+ or Mn 3+ valance states respectively. 48 However, MnO has a satellite feature (∼645 eV) for 2p 3/2 and (∼657 eV) for 2p 1/2 which is not present for either Mn 2 O 3 or MnO 2 , 49,50 so confirming the presence of Mn 2+ ions in the synthesized samples. As the difference of binding energy of different Mn ions are very small therefore low concentration of Mn 3+ can be excluded and divalent Mn ions should be dominating.…”
Section: Xps Analysismentioning
confidence: 80%
“…It is worth noting that substitution with Mn 2+ ions was not trivial and ran with low efficiency. Recent works on the synthesis of hydroxyapatites enriched in manganese indicate that the substitution takes place within a limited range (up to 10 mol%) [22,24]. In addition, the thermal treatment of Mn-HA causes the decomposition of material at a fairly low temperature (600 °C) [21,24].…”
Section: Resultsmentioning
confidence: 99%
“…Other mechanisms of manganese’s beneficial effects on bone tissue metabolism include osteocalcin stimulation, increased alkaline phosphatase activity and collagen type I production [13,14,19]. Syntheses of hydroxyapatites substituted with various amounts of manganese were carried out, from trace amounts (a few ppm) to 11.9 wt% [14,16,19,20,21,22,23,24]. However, it is important to note that in vitro studies on osteoblast cells showed significantly better results for lower manganese contents [16,19], while a Mn content of 1 wt% was regarded as high and caused drastically lower cell viability [24].…”
Section: Introductionmentioning
confidence: 99%
“…It has also been reported that calcium hydroxyapatite (HA) doped with Mn (Mn‐HA) favors osteoblasts activity and proliferation . Therefore, Mn‐HA exhibits better osseointegration than HA and is preferable for coating of titanium implants . The incorporation of small amounts of Mn to HA also has a beneficial influence on the process of sintering and densification of bioceramics, thus improving their mechanical parameters …”
Section: Introductionmentioning
confidence: 99%