The influence of Ni(II) on brushite structure stabilization
Brushite samples doped with Ni(II) in different concentrations, from 5% to 20%, were prepared in aqueous solution at pH = 7 and at two temperatures: 25 and 37 °C. The solid samples were characterized by chemical analysis, infrared spectroscopy (FTIR) and x-ray powder diffraction (XRPD). Chemical ana...
Guardado en:
| Autores principales: | , , , |
|---|---|
| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2017
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/103924 https://www.sciencedirect.com/science/article/abs/pii/S0022286017302351?via%3Dihub |
| Aporte de: |
| id |
I19-R120-10915-103924 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Powder X-ray diffraction Brushite Urinary calculi Calcium phosphate Infrared spectroscopy |
| spellingShingle |
Ciencias Exactas Powder X-ray diffraction Brushite Urinary calculi Calcium phosphate Infrared spectroscopy Guerra López, J. R. Güida, Jorge Alberto Ramos, M. A. Punte, Graciela María del Carmen The influence of Ni(II) on brushite structure stabilization |
| topic_facet |
Ciencias Exactas Powder X-ray diffraction Brushite Urinary calculi Calcium phosphate Infrared spectroscopy |
| description |
Brushite samples doped with Ni(II) in different concentrations, from 5% to 20%, were prepared in aqueous solution at pH = 7 and at two temperatures: 25 and 37 °C. The solid samples were characterized by chemical analysis, infrared spectroscopy (FTIR) and x-ray powder diffraction (XRPD). Chemical analysis has shown Ni(II) almost complete incorporation to the solid phase up to 15%. X-ray diffraction patterns have allowed to identify brushite phase with almost no modification of the line breadth and only small shifts of lines positions with increasing Ni(II) incorporation up to 15%. For larger Ni(II) concentration, in solution, a mixture of phases has been detected. Infrared spectra have supported diffraction results. For Ni(II) 20% and over the characteristic bands of HPO<sup>2-</sup><sub>4</sub> anions tend to vanish, and the typical shaped PO<sup>3=</sup><sub>4</sub> bands are observed. These results have allowed to establish that the presence of low levels of Ni in the synthetic process not only helps brushite formation; but, also prevents brushite from apatite conversion and, in addition, preserves brushite crystallinity. According to these findings, it is possible to propose that nickel traces present in the urinary system might be a trigger to brushite stone formation and/or growth, rather than the expected brushite conversion to hydroxyapatite. This outcome would explain the recurrent detection of difficult to treat brushite stones, observed in the last three decades. |
| format |
Articulo Articulo |
| author |
Guerra López, J. R. Güida, Jorge Alberto Ramos, M. A. Punte, Graciela María del Carmen |
| author_facet |
Guerra López, J. R. Güida, Jorge Alberto Ramos, M. A. Punte, Graciela María del Carmen |
| author_sort |
Guerra López, J. R. |
| title |
The influence of Ni(II) on brushite structure stabilization |
| title_short |
The influence of Ni(II) on brushite structure stabilization |
| title_full |
The influence of Ni(II) on brushite structure stabilization |
| title_fullStr |
The influence of Ni(II) on brushite structure stabilization |
| title_full_unstemmed |
The influence of Ni(II) on brushite structure stabilization |
| title_sort |
influence of ni(ii) on brushite structure stabilization |
| publishDate |
2017 |
| url |
http://sedici.unlp.edu.ar/handle/10915/103924 https://www.sciencedirect.com/science/article/abs/pii/S0022286017302351?via%3Dihub |
| work_keys_str_mv |
AT guerralopezjr theinfluenceofniiionbrushitestructurestabilization AT guidajorgealberto theinfluenceofniiionbrushitestructurestabilization AT ramosma theinfluenceofniiionbrushitestructurestabilization AT puntegracielamariadelcarmen theinfluenceofniiionbrushitestructurestabilization AT guerralopezjr influenceofniiionbrushitestructurestabilization AT guidajorgealberto influenceofniiionbrushitestructurestabilization AT ramosma influenceofniiionbrushitestructurestabilization AT puntegracielamariadelcarmen influenceofniiionbrushitestructurestabilization |
| bdutipo_str |
Repositorios |
| _version_ |
1764820441393790976 |