Relevant bibliographies by topics / Fluorapatit

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Fluorapatit'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Fluorapatit.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Fluorapatit"

1

Simon, Paul, Caren Göbel, Wilder Carrillo-Cabrera, Petr Formánek, Dorin Geiger, Reiner Ramlau, Harald Tlatlik, Jana Buder, and Rüdiger Kniep. "Fluorapatit-Gelatine-Komposite: Biomimetische Morphogenese und Realstruktur." Zeitschrift für anorganische und allgemeine Chemie 630, no. 11 (September 2004): 1760. http://dx.doi.org/10.1002/zaac.200470133.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Rabis, Annegrit, Ulrich Schwarz, Margit Gruner, Susanne Busch, Jana Buder, Harald Tlatlik, Frank Steglich, and Rüdiger Kniep. "NMR-spektroskopische Untersuchungen an Gelatine, Gelatine/Phosphat und Fluorapatit-Gelatine-Komposit." Zeitschrift für anorganische und allgemeine Chemie 630, no. 11 (September 2004): 1754. http://dx.doi.org/10.1002/zaac.200470122.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kniep, Rüdiger, and Susanne Busch. "Biomimetisches Wachstum und Selbstorganisation von Fluorapatit-Aggregaten durch Diffusion in denaturierten Kollagen-Matrices." Angewandte Chemie 108, no. 22 (November 18, 1996): 2788–91. http://dx.doi.org/10.1002/ange.19961082208.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Tlatlik, Harald, Paul Simon, Agnieszka Kawska, Dirk Zahn, and Rüdiger Kniep. "Biomimetische Fluorapatit-Gelatine-Nanokomposite: Vorstrukturierung von Gelatine-Matrices durch Ionenimprägnierung und Auswirkungen auf die Formentwicklung." Angewandte Chemie 118, no. 12 (March 13, 2006): 1939–44. http://dx.doi.org/10.1002/ange.200503610.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Manca, S. G., N. Urquiza, and E. J. Baran. "Über den Einbau von AI(III), Ga(III) und In(III) in das Calcium-Fluorapatit-Gitter." Zeitschrift für Naturforschung B 46, no. 1 (January 1, 1991): 129–32. http://dx.doi.org/10.1515/znb-1991-0124.

Full text
Abstract:
In order to determine the effect of Al(III), Ga(III) and In(III) on the inorganic phase of bone, a model study has been undertaken, investigating a series of fluoroapatites in which part of the Ca(II) ions were substituted be these cations. Diffractometric and spectroscopic studies show that low concentrations of the incorporated metals neither affect the crystallographic characteristics nor the strength of the P - O bonds of these apatitic materials.
APA, Harvard, Vancouver, ISO, and other styles
6

Wang, Xianchen, Qin Zhang, Song Mao, and Wei Cheng. "A Theoretical Study on the Electronic Structure and Floatability of Rare Earth Elements (La, Ce, Nd and Y) Bearing Fluorapatite." Minerals 9, no. 8 (August 20, 2019): 500. http://dx.doi.org/10.3390/min9080500.

Full text
Abstract:
Calcium atoms are often replaced by rare earth elements (REEs) in the lattice of fluorapatite (Ca10F2(PO4)6), making the phosphate ore an important potential rare earth resource. In this paper, the electronic properties of REEs (La, Ce, Nd and Y) bearing fluorapatite crystals have been investigated by density functional theory. Results of calculation indicated that the existence of REEs increased the cell parameters of fluorapatite in varying degrees. The REEs substitution made the Fermi level of fluorapatite to move to higher energy levels, making it easier to accept electrons. Except for Y, all the other REEs (La, Ce and Nd) showed that the electronic state mainly exists in the valence band. The Fermi level of REEs were mainly contributed by La5d, Ce4f, Nd4f and Y4d, respectively. The Mulliken values of REE–F and REE–O bonds in REEs-bearing fluorapatites were larger than those of Ca–F and Ca–O bonds in the perfect crystal, and the values of Y–F and Y–O bonds were the largest. The results of interaction between fluorapatite and oleic acid by frontier molecular orbital analysis suggested that the substitution of REEs can improve the reactivity of fluorapatite with oleic acid.
APA, Harvard, Vancouver, ISO, and other styles
7

Manca, S. G., N. Urquiza, and E. J. Baran. "Notizen: Über den Einbau vierwertiger Kationen in das Calcium-Fluorapatit-Gitter / Incorporation of Tetravalent Cations in the Calcium Fluoroapatite Lattice." Zeitschrift für Naturforschung B 46, no. 12 (December 1, 1991): 1723–24. http://dx.doi.org/10.1515/znb-1991-1224.

Full text
Abstract:
In order to determine the effect of tetravalent cations on the inorganic phase of hard tissues, a model study has been undertaken, investigating a series of fluoroapatites in which part of the Ca(II) ions were substituted by Th(IV), Zr(IV) or Hf(IV). Diffractometric and vibrational spectroscopic studies show that low concentrations of the incorporated metals neither affect the crystallographic characteristics nor the strength of the P—O bonds of these apatitic materials.
APA, Harvard, Vancouver, ISO, and other styles
8

Myšľan, Pavol, Peter Ružička, Tomáš Mikuš, and Miroslav Hain. "3D distribúcia minerálnych inklúzií v granátoch z lokalít Lesné - Potičky a Beňatinská voda (Slovenská republika)." Bulletin Mineralogie Petrologie 28, no. 2 (2020): 246–60. http://dx.doi.org/10.46861/bmp.28.246.

Full text
Abstract:
Visualization of garnets and their mineral inclusions was performed by X-ray microtomography by reconstructing 3D image from 1800 measured 2D X-ray projections. Visualization procedure of 3D distribution of mineral inclusions was based on the different absorption of X-ray radiation between the host garnet and mineral inclusions. 3D visualization provided a realistic picture of a distribution of the 126 identified mineral inclusions in garnet from rhyolite and rhyodacite Beňatinská voda and 21 inclusions in garnet from Lesné - Potičky (Slovak Republic). Composition of garnet from locality Lesné - Potičky is Alm71.0-73.7Prp8.3-9.0Grs14.7-16.6 and from locality Beňatinská voda is Alm72.1-73.2 Prp5.5-5.9Grs18.3-19.4. Mineral inclusions in garnets from locality Lesné - Potičky are represented by fluorapatite, zircon, ilmenite, annite and magmatic melts preserved in the form of glass inclusions trapped in apatite inclusions. Mineral inclusions in garnets from locality Beňatinská voda are represented by fluorapatite, zircon and plagioclase An78.53-57.12. Chemical composition of zircons and fluorapatites are similar from both localities. Based on the chemical composition, the high-pressure origin of garnets associated with I-type magmas was confirmed.
APA, Harvard, Vancouver, ISO, and other styles
9

Tulyaganov, D. U., and R. Ya Khodakovskaya. "Glass-ceramic biomaterials based on the fluorapatite-anorthite and fluorapatitie-diopside systems." Glass and Ceramics 48, no. 5 (May 1991): 221–22. http://dx.doi.org/10.1007/bf00676772.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Thủy, Nguyễn Thị, and Nguyễn Thị Hồng Nụ. "Characteristics of phosphate phase (fluorapatite and monazite) in the South Nam Xe carbonatites, Northwest Vietnam." Hue University Journal of Science: Earth Science and Environment 126, no. 4B (June 2, 2017): 97. http://dx.doi.org/10.26459/hueuni-jese.v126i4b.4293.

Full text
Abstract:
<p>This paper presents characteristics of appearance and mineral chemistry of phosphate phase, including fluorapatite and monazite in the South Nam Xe carbonatite dykes in Northwest Vietnam. These minerals occur in both calcio- and ferrocarbonatites in various modes. Most of the fluorapatites in the calciocarbonatites are oblong to elongated, and have sharp contacts with calcite, aegirine and phlogopite suggesting their primary origin; whereas those in the ferrocarbonatites are commonly present in forms of stubby to perfect hexagonal prismatic crystals, which partly replaced by the monazite. The monazites in the ferrocarbonatites also occur as hundreds micro isolated crystals, which associated with ankerite, feldspar, magnetite and phlogopite.</p><p>Contents of fluor and rare earth elements (REE) are relatively high (F up to 4.26 wt.%; REE up to 5.19 wt.%) indicating a F- and REE-enriched precipitation for the carbonatites. The enrichment in light REEs in the fluorapatite is paired with an enrichment in Na, varying from 0.25 wt.% to 0.89 wt.%. The replacement of REE and Na for Ca in the fluorapatites, which leads to change in CaO/P<sub>2</sub>O<sub>5</sub> ratios might show an open system where Ca and P are added to areas of the fluorapatite depleted in light REE (LREE). REE contents in the monazite show a very limited variation, and are mainly composed of La, Ce and Nd (La<sub>2</sub>O<sub>3</sub> = 21.09-22.72 wt.%, Ce<sub>2</sub>O<sub>3</sub> = 32.82-33.35 wt.%, Nd<sub>2</sub>O<sub>3</sub> = 6.96-8.20 wt.% in calciocarbonatite; La<sub>2</sub>O<sub>3</sub> = 16.61-17.39 wt.%, Ce<sub>2</sub>O<sub>3</sub> = 32.07-33.52 wt.%, Nd<sub>2</sub>O<sub>3</sub> = 8.92-10.94 wt.% in ferrocarbonatite). </p>
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Fluorapatit"

1

Tlatlik, Harald. "Neue Untersuchungen zu Wachstum und Struktur von Fluorapatit-Gelatine-Nanokompositen." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1239970399481-29675.

Full text
Abstract:
Die vorliegende Dissertation beschäftigt sich mit Wachstum und Aufbau von Fluorapatit-Gelatine-Nanokompositaggregaten. Diese Aggregate werden im sogenannten Doppeldiffusionsversuch biomimetisch erzeugt und ihre äußere Form bzw. Formentwicklung lässt sich anhand eines fraktalen Modells bis ins Detail nachvollziehen. Sie zeigen einen komplexen inneren Aufbau, in dem die Makromoleküle der organischen Komponente einerseits im Zentrum jeder Nanoeinheit und andererseits zu Strängen, den sogenannten Fibrillen, zusammengelagert am Aufbau der Kompositaggregate beteiligt sind. Im Fall des Kompositkeims ist die innere Architektur in hoher Detailstufe verstanden, auch wenn -- insbesondere bezüglich der späteren Wachstumsphasen -- eine Reihe ungeklärter Fragestellungen verbleibt. Ein zentrales Ergebnis der vorliegenden Arbeit bildet die Entdeckung eines weiteren Wachstumstypen, der im Vergleich zu den bekannten, fraktalen Kompositaggregaten grundsätzliche Unterschiede bezüglich des inneren und äußeren Aufbaus zeigt. Der Grund für die andersartige Formentwicklung liegt in der Versteifung der organischen Komponente durch eine vorangegangene Einlagerung von Calciumionen, wie sowohl experimentell als auch mit atomistischen Computersimulationen gezeigt werden konnte. Aufgrund der hohen Komplexität des Systems ist es bislang allerdings nicht möglich, lokale Ionen-Konzentrationen und pH-Werte vor bzw. während Nukleation und Wachstum der Kompositaggregate im Doppeldiffusionsversuch zu bestimmen. Deshalb wurde ein Ersatzversuch -- der sehr ähnlich strukturierte Aggregate erzeugt, sich aber mit rechnerischen Methoden analysieren lässt -- entworfen und untersucht. Anhand dieser Ergebnisse konnte erstmals die &quot;Geschichte&quot; von Fluorapatit-Gelatine-Nanokompositaggregaten detailliert nachvollzogen werden. Da über die Rolle der Gelatine beim Wachstum der Kompositaggregate nur wenig bekannt ist, wurde eine Reihe von Versuchen durchgeführt, in denen Gelatinen mit verschiedenen Molekülmassenverteilungen eingesetzt wurden. Es stellte sich heraus, dass für selbstorganisiertes und insbesondere fraktales Wachstum der Kompositaggregate lange, möglichst wenig gestörte Makromoleküle von zentraler Wichtigkeit sind. Um die Funktion der organischen Komponente für das Kompositwachstum näher zu untersuchen, wurden Oberflächen von Kompositkeimen mit rasterkraftmikroskopischen Methoden studiert. Durch Säuberung der Oberflächen konnten Austrittsstellen der organischen Komponente durch die Oberfläche der Kompositkeime identifiziert werden. Damit konnte gezeigt werden, dass die organische Komponente aus dem Inneren des Festkörpers teilweise durch die Oberfläche dringt und somit während des Wachstums weit in das Gel hineinreichen sollte. Für die mesoskopische Strukturbildung der Kompositaggregate spielen intrinsische elektrische Felder eine essenzielle Rolle. Deshalb wurde bislang eine Wirkung externer elektrischer Felder auf das Wachstum der Kompositaggregate vermutet. Im Rahmen der vorliegenden Arbeit wurde herausgearbeitet, dass es zwar zu keiner direkten Beeinflussung kommen kann, jedoch in den elektrodennahen Bereichen des Gels eine Ordnung der organischen Moleküle durch externe elektrische Felder zu erwarten ist. Dies könnte eine Wirkung auf wachsende Kompositaggregate zeigen. Da diese Effekte auch aufgrund der elektrischen Felder um die dipolaren Kompositaggregate zu erwarten sind, könnte eine ähnliche Strukturierung der Gelatine in der Nähe der wachsenden Kompositaggregate stattfinden. Insgesamt wurden in dieser Arbeit eine Reihe grundlegender Beiträge zur Erforschung der biomimetisch erzeugten Fluorapatit-Gelatine-Nanokompositaggregate geleistet. Es konnten neue Erkenntnisse zur inneren und äußeren Architektur der Kompositaggregate, zu Mechanismen der Morphogenese und deren wichtigsten Einflussgrößen sowie zum Verständnis der chemisch-physikalischen Vorgänge auf atomarer Größenskala gewonnen werden. Als besonders fruchtbar erwies sich die Verbindung von Experimenten mit theoretischen Untersuchungen, so dass dieser Weg auch in Zukunft grundlegende Erkenntnisse bei der Erforschung der Biomineralisation verspricht und weiterhin verfolgt werden sollte.
APA, Harvard, Vancouver, ISO, and other styles
2

Tlatlik, Harald. "Neue Untersuchungen zu Wachstum und Struktur von Fluorapatit-Gelatine-Nanokompositen." Doctoral thesis, Technische Universität Dresden, 2008. https://tud.qucosa.de/id/qucosa%3A23601.

Full text
Abstract:
Die vorliegende Dissertation beschäftigt sich mit Wachstum und Aufbau von Fluorapatit-Gelatine-Nanokompositaggregaten. Diese Aggregate werden im sogenannten Doppeldiffusionsversuch biomimetisch erzeugt und ihre äußere Form bzw. Formentwicklung lässt sich anhand eines fraktalen Modells bis ins Detail nachvollziehen. Sie zeigen einen komplexen inneren Aufbau, in dem die Makromoleküle der organischen Komponente einerseits im Zentrum jeder Nanoeinheit und andererseits zu Strängen, den sogenannten Fibrillen, zusammengelagert am Aufbau der Kompositaggregate beteiligt sind. Im Fall des Kompositkeims ist die innere Architektur in hoher Detailstufe verstanden, auch wenn -- insbesondere bezüglich der späteren Wachstumsphasen -- eine Reihe ungeklärter Fragestellungen verbleibt. Ein zentrales Ergebnis der vorliegenden Arbeit bildet die Entdeckung eines weiteren Wachstumstypen, der im Vergleich zu den bekannten, fraktalen Kompositaggregaten grundsätzliche Unterschiede bezüglich des inneren und äußeren Aufbaus zeigt. Der Grund für die andersartige Formentwicklung liegt in der Versteifung der organischen Komponente durch eine vorangegangene Einlagerung von Calciumionen, wie sowohl experimentell als auch mit atomistischen Computersimulationen gezeigt werden konnte. Aufgrund der hohen Komplexität des Systems ist es bislang allerdings nicht möglich, lokale Ionen-Konzentrationen und pH-Werte vor bzw. während Nukleation und Wachstum der Kompositaggregate im Doppeldiffusionsversuch zu bestimmen. Deshalb wurde ein Ersatzversuch -- der sehr ähnlich strukturierte Aggregate erzeugt, sich aber mit rechnerischen Methoden analysieren lässt -- entworfen und untersucht. Anhand dieser Ergebnisse konnte erstmals die &quot;Geschichte&quot; von Fluorapatit-Gelatine-Nanokompositaggregaten detailliert nachvollzogen werden. Da über die Rolle der Gelatine beim Wachstum der Kompositaggregate nur wenig bekannt ist, wurde eine Reihe von Versuchen durchgeführt, in denen Gelatinen mit verschiedenen Molekülmassenverteilungen eingesetzt wurden. Es stellte sich heraus, dass für selbstorganisiertes und insbesondere fraktales Wachstum der Kompositaggregate lange, möglichst wenig gestörte Makromoleküle von zentraler Wichtigkeit sind. Um die Funktion der organischen Komponente für das Kompositwachstum näher zu untersuchen, wurden Oberflächen von Kompositkeimen mit rasterkraftmikroskopischen Methoden studiert. Durch Säuberung der Oberflächen konnten Austrittsstellen der organischen Komponente durch die Oberfläche der Kompositkeime identifiziert werden. Damit konnte gezeigt werden, dass die organische Komponente aus dem Inneren des Festkörpers teilweise durch die Oberfläche dringt und somit während des Wachstums weit in das Gel hineinreichen sollte. Für die mesoskopische Strukturbildung der Kompositaggregate spielen intrinsische elektrische Felder eine essenzielle Rolle. Deshalb wurde bislang eine Wirkung externer elektrischer Felder auf das Wachstum der Kompositaggregate vermutet. Im Rahmen der vorliegenden Arbeit wurde herausgearbeitet, dass es zwar zu keiner direkten Beeinflussung kommen kann, jedoch in den elektrodennahen Bereichen des Gels eine Ordnung der organischen Moleküle durch externe elektrische Felder zu erwarten ist. Dies könnte eine Wirkung auf wachsende Kompositaggregate zeigen. Da diese Effekte auch aufgrund der elektrischen Felder um die dipolaren Kompositaggregate zu erwarten sind, könnte eine ähnliche Strukturierung der Gelatine in der Nähe der wachsenden Kompositaggregate stattfinden. Insgesamt wurden in dieser Arbeit eine Reihe grundlegender Beiträge zur Erforschung der biomimetisch erzeugten Fluorapatit-Gelatine-Nanokompositaggregate geleistet. Es konnten neue Erkenntnisse zur inneren und äußeren Architektur der Kompositaggregate, zu Mechanismen der Morphogenese und deren wichtigsten Einflussgrößen sowie zum Verständnis der chemisch-physikalischen Vorgänge auf atomarer Größenskala gewonnen werden. Als besonders fruchtbar erwies sich die Verbindung von Experimenten mit theoretischen Untersuchungen, so dass dieser Weg auch in Zukunft grundlegende Erkenntnisse bei der Erforschung der Biomineralisation verspricht und weiterhin verfolgt werden sollte.
APA, Harvard, Vancouver, ISO, and other styles
3

Enax, Joachim [Verfasser], Matthias [Akademischer Betreuer] Epple, and Mathias [Akademischer Betreuer] Ulbricht. "Entwicklung zahnmedizinischer Materialien : Auf der Mikroarchitektur von Haifischzähnen basierende Fluorapatit/Polymer-Dentalkomposite und Mattierungsdispersionen für die Vermessung von Zähnen / Joachim Enax. Gutachter: Mathias Ulbricht. Betreuer: Matthias Epple." Duisburg, 2014. http://d-nb.info/106426462X/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Moorehead, Robert David. "Crystallisation in fluorapatite-fluorphlogopite glass ceramics." Thesis, University of Salford, 2011. http://usir.salford.ac.uk/26825/.

Full text
Abstract:
Apatite based glass-ceramics are some of the most bioactive materials found to date. They do not require fibrous encapsulation and bond to bone directly through an apatite layer. Apatite based glass-ceramics exhibit relatively poor biaxial flexural strength, hence limiting their applications to non-load bearing implants. The addition of mica results in a material that is highly machinable, and provided that a suitable interlocking microstructure can be produced, the strength will be increased. The aim of this work is to investigate how altering the heat treatment affects the crystallisation and the final mechanical properties of three different compositions of glass-ceramic. The glass system studied is the ternary glass system; barium fluorphlogopite (Bao.sMgafSiaAlOiojFz), fluorapatite (CaiofPO^eFz) and cordierite (MgzAUSisOis). The three compositions differ by the mol% of fluorapatite forming feedstock in the precursor glass. Glass-ceramics formed by heat-treating a glassy precursor are investigated using differential scanning calorimetry, kinetic neutron diffraction and scanning electron microscopy. The mechanical properties of the samples are characterised by their biaxial flexural strength and Vickers hardness. The phases formed and the microstructures of the samples are linked to the mechanical properties and an assessment of the final material's implant suitability is made.
APA, Harvard, Vancouver, ISO, and other styles
5

ALVES, Luana Cristina Feitosa. "Estudo da influência do fluoreto de cálcio na bioatividade de vidros borato." Universidade Federal do Maranhão, 2017. https://tedebc.ufma.br/jspui/handle/tede/tede/1939.

Full text
Abstract:
Submitted by Rosivalda Pereira (mrs.pereira@ufma.br) on 2017-09-21T17:41:19Z No. of bitstreams: 1 LuanaAlves.pdf: 1633592 bytes, checksum: 785a3f9aa7f3fc08d80023603f457b39 (MD5)
Made available in DSpace on 2017-09-21T17:41:19Z (GMT). No. of bitstreams: 1 LuanaAlves.pdf: 1633592 bytes, checksum: 785a3f9aa7f3fc08d80023603f457b39 (MD5) Previous issue date: 2017-07-13
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Fundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Maranhão
Bioactive borate glass has presented superior results then bioactive silicate glasses, when compared its conversion rates in apatite and its potential of bioactivity. In this work, new Borate glasses with the basic 60B2O3 - 4P2O5 - 18Na2O – xCaF2 – (18-xCaO), com x = 0, 5 e 10 % wt were synthesized, and investigated the influence of CaF2 addition on bioactivity of samples in vitro, in a period of 28 days in a simulator of the body fluid (SBF). This bioactivity was investigated by means of X-ray diffraction (DRX), Raman Spectroscopy, FTIR and by the measure of pH. DRX measures, prior to immersion, presented wide bands, evidencing the amorphous structure of glasses. The results of density, thermal analysis, XRD, Raman and FTIR show that the addition of CaF2, until 10 % wt, did not cause significant changes in samples network structure. The thermal stability for all samples was calculated from DSC data and all presented values up to 120°C. The results of pH of SBF solution show increase from for 24 hours, which contributes to the dissolution of the outermost layer of the glass and the precipitation of apatite. In XRD data for 60B sample soaked in SBF for 7 days, there was formation of crystalline peaks, at 26° and 32° (2ϴ), in all measures. These peaks correspond to patterns of hydroxyapatite (HA). The XRD spectra in 60B5CaF and 60B10CaF, soaked in SBF for 7 days, presented peaks in 28°(2ϴ) corresponding to fluorapatite (FA), due to the presence of CaF2 in these glasses. Raman and FTIR measurements confirmed what was measured by XRD, showing characteristic peaks of HA and FA for all the samples. Results show that the prepared samples present potential for being used as biomaterials in biomedical applications, such as orthopedics, dentistry and tissue engineering.
Vidros boratos bioativos têm apresentado resultados superiores aos vidros silicatos bioativos, quando comparamos suas taxas de conversão em apatita e seu potencial de bioatividade. Neste trabalho sintetizamos novos vidros boratos com a composição básica 60B2O3 - 4P2O5 - 18Na2O – xCaF2 – (18-xCaO), com x = 0, 5 e 10 % em massa, e investigamos a influência da adição de CaF2 na bioatividade das amostras in vitro, em um período de 28 dias, em um simulador do fluído corporal (SBF). As medidas de DRX, antes da imersão, apresentaram bandas largas, comprovando a estrutura amorfa dos vidros. E verificou-se por meio das análises de Densidade, análise térmica, DRX, Raman e FTIR, que a adição de CaF2 até 10%, em massa, não provocou grandes mudanças estruturais na amostras. Por meio da calorimetria exploratória diferencial, determinamos a estabilidade térmica dos vidros que apresentaram valores acima de 120°C. A bioatividade foi investigada por meio das técnicas de difração de raios-X (DRX), espectroscopia Raman e FTIR, e pela medida do pH da solução SBF. Os resultados obtidos mostraram que, em 24h, houve um aumento no pH da solução SBF, o que contribui para a dissolução da camada mais externa do vidro e sua conversão em apatita. Nos difratogramas (DRX) para as amostras imersas por 7 dias, houve a formação de picos cristalinos, em 26° e 32° (2ϴ), em todas as amostras medidas. Esses picos correspondem aos padrões de hidroxiapatita. A presença de CaF2 na composição das amostras imersas por 7 dias apresentou picos em 28° (2ϴ) correspondendo a fluorapatita. A intensidade destes picos apresentou um aumento em função do tempo de imersão, durante todo período estudado. As medidas de Raman confirmaram os resultados do DRX, apresentando para todas as amostras espectros característicos da hidroxiapatita em 960 cm-1 . As amostras preparadas com CaF2 apresentaram picos em 965 cm-1 , que corresponde a fluorapatita. O FTIR confirmou os resultados apresentados no DRX e Raman, em que todas as amostras apresentaram um pico centrado em 1041 cm-1 para a hidroxiapatita e 1042 cm-1 característico para a fluorapatita. Os resultados demonstram que as amostras preparadas apresentam potencial para serem usados como biomateriais em aplicações biomédicas, como ortopedia, odontologia e engenharia de tecidos.
APA, Harvard, Vancouver, ISO, and other styles
6

Dušan, Milojkov. "Dobijanje nanofosfora na bazi fluorapatita dopirani Pr3+ jonima za bio-medicinske primene." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114851&source=NDLTD&language=en.

Full text
Abstract:
    Luminescentni nanokristali (nanofosfori) na bazi fluorapatita (FAP-a) dopirani elementima retkih zemalja idealni su kontrastni agenti za bio-medicinske primene, kao što su detekcije, snimanja, praćenja i terapije ćelija kancera. Kancer je jedna od najčešćih bolesti modernog doba čiji uspeh lečenja zavisi od rane dijagnostike i neinvazivnog tretmana. Luminescentne nanočestice mogu uneti inovativnu paradigmu u lečenje kancera kombinovanjem biosnimanja, dijagnostike i tretmana. Za studije fluorescentnih biosnimanja nanokristali fluorapatita dopirani retkim zemljama kao kontrastni agenti pružaju značajne prednosti u vidu velikih kontrasta i dugotrajnosti luminescencije, i što je još važnije visoke biokompatibilnosti, netoksičnosti i bioaktivnosti. Glavni ciljevi ove doktorske disertacije su sinteza novih luminescentnih multifotonskih bionanomaterijala na bazi fluorapatita dopiranih jonima prazeodimijuma (Pr3+), njihova karakterizacija i evaluacija  primene za fluorescentna biosnimanja kancera. Sintezom nanoprahova u umerenim uslovima metodom ko-precipitacije, a potom sušenjem na 110 oC i kalcinacijom na temperaturama od 700 i 1000 oC očekuje se pronalaženje najboljih uslova za dobijanje novih nanofosfora koji bi našli i različite bio-medicinske primene u oblasti fluorescentnih biosnimanja. Proučavane su tri vrste PrFAP nanokristala, sa 0,1%, 0,5% i 1% atomskih procenta Pr3+, zajedno sa nedopiranim FAP kontrolnim uzorkom. Nivoi energije aktivator jona Pr3+ sadrže metastabilna multipletna stanja koja nude mogućnosti efikasnih emisionih linija u više boja u FAP nanokristalima, kao i u infracrvenoj i ultravioletnoj oblasti spektra. Metodom ko-precipitacije na sobnoj temperaturi (25 oC), a potom sušenjem na 110 oC, sintetisani su monofazni heksagonalni nanokristali PrFAPs nepravilnog sfernog oblika. Termičkom analizom sintetisanih uzoraka, na osnovu detektovanih temperaturnih opsega procesa dekarbonacije i dehidroksilacije, utvrđene su temperature kalcinacije od 700 i 1000 oC. Termička analiza i karakterizacija uzoraka su pokazale da Pr3+ joni dovode do stabilizacije FAP strukture na višim temperaturama, što je pripisano unosu lantanoidnih jona sa specifičnim magnetnim osobinama u sistem i stvaranju jačih privlačnih sila sa O2- anjonima. Nanokristali sušeni na 100 oC i kalcinisani na 1000 oC, zbog prisustva defekata kristalne rešetke koji zadržavaju emisiju Pr3+ jona, nisu pokazali luminescentne karakteristike od značaja za primene u medicinskim fluorescentnim biosnimanjima. Kalcinacijom uzoraka na 700 oC izrađen je novi tip aktiviranih fluorapatitnih nanokristala dopiranih prazeodimijumom (PrFAPa) sa ekscitaciono-emisionim profilima u vidljivom delu spektra. Fizičko-hemijska karakterizacija potvrdila je sferne kristale heksagonalne strukture do nanometrske veličine od oko 20 nm. Kvantno-hemijske kalkulacije predvidele su da se joni Pr3+ ugrađuju u kristalnu rešetku FAP nanokristala na položaju Ca2 (6h), što je praćeno deformacijama pozicije F- jona. Pretpostavljeni mehanizam supstitucije je jedan jon Pr3+ za jedan Ca2+, s delimičnom supstitucijom anjona F– sa O2– i OH– i stvaranjem vakansi usled postizanja neutralnosti sistema. Rezultati in vitro biokompatibilnosti i hemokompatibilnosti pokazali su da nanokristali PrFAPa nisu toksični za žive ćelije. Pored toga, internalizacija PrFAPa nanokristala od strane ćelija kancera kože (A431) i pluća (A549) je proučavana korišćenjem konfokalne mikroskopije i mikroskopije širokog polja zasnovane na fluorescenciji. Nanokristali pokazuju karakterističnu zelenu emisiju na 545 nm (3P0→3H5 tranzicija Pr3+ jona) i narandžastu emisiju na 600 nm (1D2→3H4), koje su korišćene za razlikovanje od pozadinske autofluorescencije ćelije. Studije dobijenih slika konfokalnom mikroskopijom u plavom, zelenom i crvenom kanalu su otkrile da nanokristali mogu da prepoznaju ćelijsku površinu i da se lepe za nju, ali nisu potvrdile ulazak nanokristala u ćelije. Mikroskopija širokog polja je detektovala emisione prelaze u zelenoj i narandžastoj boji i potvrdila da luminescentni signal dolazi iz unutrašnjosti ćelija. Korišćenjem rezonantne ekscitacije od 488 nm i emisije od 600 nm PrFAPa nanokristala, konfokalnom mikroskopijom ekstrahovan je signal fluorescencije iz unutrašnjosti ćelija kancera. Ortogonalne projekcije u 3D konfokalnim ravnima pokazuju da su nanokristali u stanju da uđu u ćelije kancera i da se raspoređuju po citoplazmi. Sveukupno, ovako dobijeni nanokristali PrFAPa su biokompatibilni i od testiranih uzoraka, aktivirani nanokristali dopirani sa 0,5% Pr3+ pokazuju najviše potencijala za primenu u medicinskim fluorescentnim biosnimanjima kao kontrastni agenti.  
Luminescent nanocrystals (nanophosphorus) based on fluorapatite (FAP) doped with rare earth elements are ideal contrast agents for biomedical applications such as cancer cell detection, imaging, tracking and therapy. Cancer is one of the most common diseases of the modern times whose success of the cure depends on early diagnosis and non-invasive treatment. Luminescent nanoparticles can bring an innovative paradigm into the treatment of cancer by combining bioimaging, diagnostics and treatment. Rare earth doped fluorapatite nanocrystals as contrast agents for studies of fluorescence bioimaging, offer significant advantages in terms of high contrasts and long-term luminescence, and more importantly high biocompatibility, non-toxicity and bioactivity. The main objectives of this doctoral dissertation are the synthesis of novel luminescent multiphoton bionanomaterials based on fluorapatites doped with praseodymium ions (Pr3+), their characterization and evaluation of their application for cancer fluorescence bioimaging. Synthesis of nanopowders under moderate conditions by the co-precipitation method, followed by dried at 110 °C and calcination at 700 and 1000 °C, is expected to find the best conditions for obtaining new nanophosphors that would find different bio-medical applications in the field of fluorescence bioimaging. Three types of PrFAP nanocrystals were studied, with 0,1%, 0,5%, and 1% atomic percentages of Pr3+, together with an undoped FAP control sample. Energy levels of the Pr3+ ion activator contain metastable multiplet states that offer the possibility of efficient multi-color emission lines in FAP nanocrystals as well as in the infrared and ultraviolet regions of the spectrum. Single-phase hexagonal nanocrystals PrFAPs of irregular spherical shape were synthesized by the method of co-precipitation at room temperature (25 oC) and then drying at 110 oC. Thermal analysis of the synthesized samples, based on the detected temperature ranges of the decarbonation and dehydroxylation processes, determined calcination temperatures of 700 and 1000 oC. Thermal analysis with characterization showed that Pr3+ ions lead to stabilization of the FAP structure at higher temperatures, which was attributed to the entry of lanthanoid ions with specific magnetic properties into the system and the creation of stronger attractive forces with O2- anions. Nanocrystals dried at 100 oC and calcined at 1000 oC, due to the presence of crystal lattice defects that quench the emission of Pr3+ ions, did not show luminescent characteristics of significance for applications in medical fluorescence imaging. Calcination of the samples at 700 oC produced a new type of activated praseodymium doped fluorapatite nanocrystals (PrFAPa) with excitation-emission profiles in the visible part of the spectrum. Physicochemical characterization confirmed spherical crystals of hexagonal structure up to a nanometer size of about 20 nm. Quantum-chemical calculations predicted that Pr3+ ions would be embedded in the crystal lattice of FAP nanocrystals at the Ca2 position (6h), which was followed by deformations of the F- ion position. The assumed substitution mechanism is one Pr3+ ion for one Ca2+, with partial substitution of F– anions with O2– and OH– and creation of vacancies due to achieving system neutrality. The results of in vitro biocompatibility and hemocompatibility showed that PrFAP nanocrystals were not toxic to living cells. In addition, the internalization of PrFAPa nanocrystals by skin (A431) and lung (A549) cancer cells was studied using fluorescence-based confocal microscopy and wide-field microscopy. The nanocrystals show characteristic green emission at 545 nm (3P0→3H5 transition of Pr3+ ion) and orange emission at 600 nm (1D2→3H4), which we use to discriminate from cell autofluorescence. Studies of the images obtained by confocal microscopy in the blue, green, and red channels revealed that nanocrystals could recognize the cell surface and adhere to it, but they did not confirm the entry of nanocrystals into the cells. The wide-field microscopy detected emission transitions in green and orange color, and confirmed that the luminescent signal was coming from inside the cells. Using resonant excitation of PrFAP nanocrystals at 488 nm and emission of 600 nm, confocal microscopy extracted the fluorescence signal from inside the cancer cells. Orthogonal projections across 3D confocal stacks show that the nanocrystals are able to enter the cells positioning themselves within the cytoplasm. Overall, the obtained PrFAPa nanocrystals are biocompatible and of the tested types, the 0,5% Pr3+ doped nanocrystals show the highest promise as a tracking nanoparticle probe for bioimaging applications.
APA, Harvard, Vancouver, ISO, and other styles
7

Kansal, Ishu. "Diopside-fluorapatite-wollastonite based bioactive glasses and glass-ceramics." Doctoral thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/14827.

Full text
Abstract:
Doutoramento em Ciência e Engenharia dos Materiais
Bioactive glasses and glass–ceramics are a class of biomaterials which elicit special response on their surface when in contact with biological fluids, leading to strong bonding to living tissue. This particular trait along with good sintering ability and high mechanical strength make them ideal materials for scaffold fabrication. The work presented in this thesis is directed towards understanding the composition-structure-property relationships in potentially bioactive glasses designed in CaOMgOP2O5SiO2F system, in some cases with added Na2O. The main emphasis has been on unearthing the influence of glass composition on molecular structure, sintering ability and bioactivity of phosphosilicate glasses. The parent glass compositions have been designed in the primary crystallization field of the pseudo-ternary system of diopside (CaO•MgO•2SiO2) – fluorapatite (9CaO•3P2O5•CaF2) – wollastonite (CaO•SiO2), followed by studying the impact of compositional variations on the structure-property relationships and sintering ability of these glasses. All the glasses investigated in this work have been synthesized via melt-quenching route and have been characterized for their molecular structure, sintering ability, chemical degradation and bioactivity using wide array of experimental tools and techniques. It has been shown that in all investigated glass compositions the silicate network was mainly dominated by Q2 units while phosphate in all the glasses was found to be coordinated in orthophosphate environment. The glass compositions designed in alkali-free region of diopside – fluorapatite system demonstrated excellent sintering ability and good bioactivity in order to qualify them as potential materials for scaffold fabrication while alkali-rich bioactive glasses not only hinder the densification during sintering but also induce cytotoxicity in vitro, thus, are not ideal candidates for in vitro tissue engineering. One of our bioglass compositions with low sodium content has been tested successfully both in vivo and in preliminary clinical trials. But this work needs to be continued and deepened. The dispersing of fine glass particles in aqueous media or in other suitable solvents, and the study of the most important factors that affect the rheology of the suspensions are essential steps to enable the manufacture of porous structures with tailor-made hierarchical pores by advanced processing techniques such as Robocasting.
Os vidros e vitrocerâmicos bioactivos são uma classe de biomateriais que induzem uma resposta especial à sua superfície quando em contacto com fluidos biológicos que conduz a uma forte ligação ao tecido vivo. Esta característica particular conjugada com uma boa aptidão para a sinterização e elevada resistência mecânica torna estes materiais ideais para a fabricação de estruturas de suporte à regeneração óssea. O trabalho apresentado nesta tese pretende dar um contributo para uma melhor compreensão das relações entre composição-estrutura-propriedades em vidros potencialmente bioactivos com composições no sistema CaOMgOP2O5SiO2F, em alguns casos com a adição de Na2O. O estudo da influência exercida pela composição do vidro na estrutura molecular, capacidade de sinterização e nível de bioactividade dos vidros fosfosilicatados foi objecto de especial atenção. As composições vítreas foram concebidas no campo da cristalização primária do pseudo sistema ternário do diópsido (CaO•MgO•2SiO2) – fluorapatite (9CaO•3P2O5•CaF2) – wollastonite, e estudou-se o impacto das variações composicionais na estrutura, nas propriedades e na capacidade de sinterização destes vidros. Todos os vidros investigados neste trabalho foram preparados por fusão e fritagem e caracterizados quanto à sua estrutura molecular, capacidade de sinterização, degradação química e bioactividade, usando uma grande variedade de técnicas experimentais. Ficou demonstrado que em todas as composições de vidro investigadas a rede de silicato era dominada principalmente por unidades Q2 enquanto o fosfato se encontrava coordenado em ambiente de ortofosfato. As composições de biovidros isentas de alcalinos do sistema diópsido–fluorapatite demonstram possuir excelente capacidade de sinterização e elevados níveis de bioactividade, atributos que os qualificam como materiais promissores para a fabricação de estruturas de suporte à regeneração de tecidos ósseos, enquanto os vidros bioactivos contendo alcalinos foram mais difíceis de densificar durante a sinterização e induziram citotoxicidade in vitro, não sendo candidatos ideais para a engenharia de tecidos. Uma das nossas composições de biovidro com um baixo teor de sódio foi testada com sucesso tanto in vivo como em ensaios clínicos preliminares. Mas este trabalho precisa de ser continuado e aprofundado. A dispersão de fritas moídas em meio aquoso ou outros solventes adequados, e o estudo dos factores mais relevantes que condicionam a reologia das suspensões são etapas essenciais para viabilizar o processo de fabrico de suportes porosos com estruturas hierárquicas de poros feitas por medida através de técnicas de processamento avançadas tais como o Robocasting.
APA, Harvard, Vancouver, ISO, and other styles
8

Jarlbring, Mathias. "Surface reactions in aqueous suspensions of fluorapatite and iron oxides /." Luleå : Luleå University of Technology, 2006. http://epubl.ltu.se/1402-1544/2006/05/index.html.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Al-Taie, Asmaa Mohammed Basil Jasim. "Development and characterisation of novel fluorapatite containing dental composite materials." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/17910/.

Full text
Abstract:
Objectives: The objectives of this study were to develop model dental composites incorporating fluorapatite (FA) as secondary filler and to characterise their physical and mechanical properties and fluoride ion release. Methods: Experimental composites were formulated containing BisGMA/TEGDMA/BisEMA and barium aluminium silicate glass as the primary filler. FA rod-like crystals and bundles were synthesised using a hydrothermal method and incorporated at 0 (0FA), 10 (10FA), 20 (20FA), 30 (30FA) and 40% (40FA) by mass into the previously identified optimum experimental composite, maintaining an overall filler content of 80%wt. 0FA and TetricEvoCeram (TC) were used for comparison as the experimental and the commercial controls, respectively. Two-body wear, Vickers Hardness (HV), Degree of Conversion (DC), Flexural strength (FS), Flexural modulus (FM), Fracture Toughness (K1C) and fluoride ion release were measured for each composition. Quantitative analysis of wear volume was carried out using a noncontact profilometer. Qualitative imaging of wear and fracture surfaces was undertaken using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDX). Statistical analysis was conducted using SPSS version 21. Results: All experimental composites showed similar wear resistance (p > 0.05) and enhanced microhardness compared to TC (p < 0.05). DC for all composites ranged between 56-60% at 20s polymerisation (p > 0.05). FA composites showed higher FM (p < 0.05) and similar FS (p > 0.05) to TC but lower FM and FS when compared to 0FA. 30FA and 40FA showed similar K1C to TC and 0FA (p > 0.05), whereas 10FA and 20FA showed lower K1C when compared to the other groups (p < 0.05). Under neutral pH, no fluoride release was detected from FA containing composites. However, under acidic conditions (pH 4), FA containing composites released fluoride when compared to the controls (p < 0.05), the amount of which was proportional to the amount of FA incorporated within the samples, i.e. 40FA> 30FA > 20FA > 10FA (p < 0.05). Conclusions: Experimental dental composites were successfully produced incorporating FA as secondary filler. The addition of FA did not affect the key physical and mechanical properties when compared to the commercial control. FA composites showed short and long term fluoride release under acidic conditions showing a promising step towards a potential “smart” fluoride releasing dental composite.
APA, Harvard, Vancouver, ISO, and other styles
10

Silva, Ubiana de Cássia. "Seleção e caracterização de mutantes de Aspergillus niger eficientes em solubilizar fosfato na presença de fluoreto." Universidade Federal de Viçosa, 2013. http://locus.ufv.br/handle/123456789/5361.

Full text
Abstract:
Made available in DSpace on 2015-03-26T13:51:58Z (GMT). No. of bitstreams: 1 texto completo.pdf: 568781 bytes, checksum: e6beb96802418d9a09f3cb5c6661297e (MD5) Previous issue date: 2013-08-30
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
The use P solubilizing microorganisms are an alternative for a sustainable use of P against a backdrop of depletion of high-grade ores. Nevertheless, the chemical characteristics of rock phosphates (RP), particularly the level of toxic elements, can affect the efficiency of microbial solubilization. Fluoride (F-) released from fluorapatites has been shown to significantly inhibit P solubilization by Aspergillus niger, stimulating the search for alternatives to overcome F- toxicity. Thus, the aim of this study was to select A. niger mutants efficient at P solubilization in the presence of F-. Three selected mutants were also characterized as to their P solubilization mechanisms and the solubilization potential of different P sources. Twenty-nine mutants were obtained that presented changes in their phosphate solubilization activity in comparison to the wild type (WT). The mutant FS1-331 showed higher solubilization of Araxá RP, while FS1-555 promoted higher soluble P when grown in media with calcium phosphate supplemented with F- and in those with pure P sources. These mutants also showed higher tolerance to F- than the WT and displayed changes in the production of organic acids. The higher production of oxalic acid by FS1-331 and FS1-555 correlated with their improved capacity of Araxá RP solubilization. A mutant with decreased P solubilization capacity showed lower production of organic acids, corroborating the importance of these compounds for RP solubilization. FS1-331 was more efficient at solubilizing Araxá, Catalão, and Patos de Minas RPs than the WT and FS1-555. The variation in P solubilization capacity of the mutants obtained in this work may help clarify the RP solubilization mechanisms by A. niger. Moreover, the mutants with better performance selected in this work show potential for use in microbial RP solubilization systems with P sources rich in fluoride.
O uso dos micro-organismos solubilizadores de fosfato (P) é uma alternativa para o uso sustentável do P tendo em vista a diminuição das reservas fosfáticas de alta qualidade. As características químicas dos fosfatos de rocha (FR), em especial o nível de elementos tóxicos, podem influenciar a eficiência de solubilização microbiana. O fluoreto (F-) liberado de fluorapatitas inibi significativamente o processo de solubilização por Aspergillus niger FS1. Assim, o objetivo deste estudo foi selecionar mutantes de A. niger eficientes na solubilização de fosfato na presença de F-. Três mutantes selecionados foram também caracterizados quanto aos mecanismos de solubilização de fosfato e ao potencial de solubilização de diferentes fontes de P. Vinte e nove mutantes com alterações na solubilização de fosfato foram obtidos. O mutante FS1-331 demonstrou maior potencial de solubilização de fosfato de Araxá, enquanto que o mutante FS1-555 aumentou o P solubilizado em meio de cultura com fosfato de cálcio suplementado com F- e naqueles com fontes sintéticas de P. Os mutantes avaliados mostraram maior tolerância ao F- do que o tipo selavagem e tiveram a produção de ácidos orgânicos alterada. A maior produção de ácido oxálico pelos mutantes FS1-331 e FS1-555 relacionou-se com o melhor desempenho dessas estiprpes na solubilização de fosfato de Araxá. Um mutante com solubilização de P diminuída (FS1-375) apresentou menor produção de ácidos orgânicos quando comparado ao tipo selvagem, corroborando a importância desses compostos para o processo de solubilização de FRs. O mutante FS1-331 foi o mais eficiente na solubilização dos FRs de Araxá, Catalão e Patos de Minas. A variação na solubilização de P das estirpes fúngicas estudadas pode contribuir para a melhor compreensão do processo de solubilização de fosfatos por A. niger. Além disso, os mutantes mais eficientes obtidos apresentam alto potencial de aplicação em sistemas microbianos de solubilização de fosfatos com fontes de P ricas em fluoreto.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Fluorapatit"

1

Chow, Laurence C., and Milenko Markovic. "Physicochemical Properties of Fluorapatite." In Calcium Phosphates in Biological and Industrial Systems, 67–83. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5517-9_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Fong, Shirley K., Lee A. Gerrard, Brian L. Metcalfe, and Ian W. Donald. "Immobilization of Hafnium Surrogates in Fluorapatite." In Advances in Science and Technology, 2018–23. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/3-908158-01-x.2018.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Denissen, H. W., H. M. De Nieuport, W. Kalk, H. G. Schaeken, and A. Van Den Hooff. "Fluorapatite and Hydroxyapatite Heat-Treated Coatings for Dental Implants." In Bioceramics and the Human Body, 130–40. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2896-4_17.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kalinichenko, Elena A., Aleksandr B. Brik, Valentin V. Radchuk, Olga V. Frank-Kamenetskaya, and Oleksii Dubok. "Computer Simulation of Defects in Carbonate Fluorapatite and Hydroxyapatites." In Lecture Notes in Earth System Sciences, 461–77. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-24987-2_35.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Zimehl, R., S. F. Willigeroth, M. Hannig, and H. Frahm. "Nano-sized fluorapatite particles by controlled precipitation from heterogeneous systems." In Mesophases, Polymers, and Particles, 110–18. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/b100311.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Kalinichenko, Elena A., Aleksandr B. Brik, Valentin V. Radchuk, Olga V. Frank-Kamenetskaya, and Oleksii Dubok. "Erratum to: Computer Simulation of Defects in Carbonate Fluorapatite and Hydroxyapatites." In Lecture Notes in Earth System Sciences, E1. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-24987-2_41.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Gunduz, Oguzhan, S. Salman, S. Kayali, Gultekin Goller, I. Goker, Simeon Agathopoulos, L. S. Ozyegin, and Faik N. Oktar. "Improvement of Microstructure of Bovine Hydroxyapatite (BHA) with Machineable Fluorapatite Glass (MFG)." In Bioceramics 20, 495–98. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-457-x.495.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Goller, Gultekin, Can Cekli, Ipek Akin, and Erdem Demirkesen. "In-Vitro Bioactivity Characterization of Sodium-Potassium Mica and Fluorapatite Containing Glass Ceramics." In Key Engineering Materials, 185–88. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-422-7.185.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Hill, Robert G., Adam Calver, Stephen Skinner, Adam Stamboulis, and Robert V. Law. "A MAS-NMR and Combined Rietveldt Study of Mixed Calcium/Strontium Fluorapatite Glass-Ceramics." In Bioceramics 18, 305–8. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-992-x.305.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Holmgren, Allan, Willis Forsling, and Liuming Wu. "An FT-IR Study of Alizarin Red S Adsorbed at the Fluorapatite-Water Interface." In Progress in Fourier Transform Spectroscopy, 197–99. Vienna: Springer Vienna, 1997. http://dx.doi.org/10.1007/978-3-7091-6840-0_31.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Fluorapatit"

1

Payne, Stephen A., William F. Krupke, Larry K. Smith, Laura D. DeLoach, and Wayne L. Kway. "Laser Properties of Yb-doped Fluorapatite." In Advanced Solid State Lasers. Washington, D.C.: OSA, 1992. http://dx.doi.org/10.1364/assl.1992.dl14.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Bonner, Jr., Carl E., Chahn C. Chess, Chandana Meegoda, Sennay Stefanos, George B. Loutts, and George E. Miller III. "Raman spectroscopic study of barium fluorapatite." In Optoelectronics '99 - Integrated Optoelectronic Devices, edited by Kathleen I. Schaffers and Lawrence E. Myers. SPIE, 1999. http://dx.doi.org/10.1117/12.349236.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Arzakantsyan, M., J. Akiyama, Y. Sato, and T. Taira. "Optical Characterization of Yb Doped Fluorapatite Anisotropic Ceramics." In Advanced Solid State Lasers. Washington, D.C.: OSA, 2013. http://dx.doi.org/10.1364/assl.2013.am1a.4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Loutts, G. B., C. Bonner, C. Meegoda, H. Ries, M. A. Noginov, N. Noginova, M. Curley, P. Venkateswarlu, A. Rapaport, and M. Bass. "Neodymium Doped Barium Fluorapatite: A New Efficient Laser Material." In Advanced Solid State Lasers. Washington, D.C.: OSA, 1997. http://dx.doi.org/10.1364/assl.1997.sc8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Nuzulia, Nur Aisyah, Yessie Widya Sari, and Desi Riah Sari. "Synthesis of Duck Eggshells-based Fluorapatite by Using Microwave Irradiation." In 2018 1st International Conference on Bioinformatics, Biotechnology, and Biomedical Engineering (BioMIC). IEEE, 2018. http://dx.doi.org/10.1109/biomic.2018.8610626.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Singer, Jared W., and Marian V. Lupulescu. "REE-RICH FLUORAPATITE TEXTURES FROM EASTERN ADIRONDACK IRON ORE DEPOSITS." In 51st Annual Northeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016ne-272533.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Chappell, J. Caleb, and John Rakovan. "UNIQUE CRYSTAL CHEMICAL ASPECTS OF FLUORAPATITE FROM MONT SAINT-HILAIRE." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-317652.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Peng, Kai, Jinhua Li, peng zou, Qinhan Zhang, and Yue Wang. "Synthesis and luminescent properties of rare earth doped upconversion nano-fluorapatite." In CIOP100, edited by Yue Yang. SPIE, 2018. http://dx.doi.org/10.1117/12.2506547.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Broom-Fendley, Sam, Pete Siegfried, Frances Wall, Mary O'Neill, Richard A. Brooker, Emily Fallon, Jonathan Pickles, and David Banks. "The Origin and Composition of Carbonatite-Derived Carbonate-Bearing Fluorapatite Deposits." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.268.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Phan, Nancy D., Daniel Fried, and John D. B. Featherstone. "Laser-induced transformation of carbonated apatite to fluorapatite on bovine enamel." In BiOS '99 International Biomedical Optics Symposium, edited by John D. B. Featherstone, Peter Rechmann, and Daniel Fried. SPIE, 1999. http://dx.doi.org/10.1117/12.348355.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Fluorapatit"

1

Bayramian, Andrew J. Development of Trivalent Ytterbium Doped Fluorapatites for Diode-Pumped Laser Applications. Office of Scientific and Technical Information (OSTI), June 2000. http://dx.doi.org/10.2172/791656.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Fluorapatit' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography