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Production of nanoparticles from natural hydroxylapatite by laser ablation.

Boutinguiza M, Comesaña R, Lusquiños F, Riveiro A, Pou J - Nanoscale Res Lett (2011)

Bottom Line: Laser ablation of solids in liquids technique has been used to obtain colloidal nanoparticles from biological hydroxylapatite using pulsed as well as a continuous wave (CW) laser.High resolution TEM showed that particles obtained by the use of pulsed laser were crystalline, while those obtained by the use of CW laser were amorphous.The shape and size of particles are consistent with the explosive ejection as formation mechanism.

View Article: PubMed Central - HTML - PubMed

Affiliation: Dpto, Física Aplicada, Universidad de Vigo, Lagoas-Marcosende, 9, Vigo 36310, Spain. mohamed@uvigo.es.

ABSTRACT
Laser ablation of solids in liquids technique has been used to obtain colloidal nanoparticles from biological hydroxylapatite using pulsed as well as a continuous wave (CW) laser. Transmission electron microscopy (TEM) measurements revealed the formation of spherical particles with size distribution ranging from few nanometers to hundred nanometers and irregular submicronic particles. High resolution TEM showed that particles obtained by the use of pulsed laser were crystalline, while those obtained by the use of CW laser were amorphous. The shape and size of particles are consistent with the explosive ejection as formation mechanism.

No MeSH data available.


XRD patterns of calcined fish bones compared with commercial stoichiometric HA (JCPDS 1993).
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Figure 2: XRD patterns of calcined fish bones compared with commercial stoichiometric HA (JCPDS 1993).

Mentions: X-ray diffraction patterns of precursor materials compared with that of stoichiometric HA are shown in Figure 2. As can be seen, the biological material is composed of well crystallized HA. The composition detected by XRF revealed the presence of Ca and P as main elements in the samples with a Ca/P molar ratio of 1.68. Some minor elements were also detected, such as Mg, Na, Si, etc.


Production of nanoparticles from natural hydroxylapatite by laser ablation.

Boutinguiza M, Comesaña R, Lusquiños F, Riveiro A, Pou J - Nanoscale Res Lett (2011)

XRD patterns of calcined fish bones compared with commercial stoichiometric HA (JCPDS 1993).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3211317&req=5

Figure 2: XRD patterns of calcined fish bones compared with commercial stoichiometric HA (JCPDS 1993).
Mentions: X-ray diffraction patterns of precursor materials compared with that of stoichiometric HA are shown in Figure 2. As can be seen, the biological material is composed of well crystallized HA. The composition detected by XRF revealed the presence of Ca and P as main elements in the samples with a Ca/P molar ratio of 1.68. Some minor elements were also detected, such as Mg, Na, Si, etc.

Bottom Line: Laser ablation of solids in liquids technique has been used to obtain colloidal nanoparticles from biological hydroxylapatite using pulsed as well as a continuous wave (CW) laser.High resolution TEM showed that particles obtained by the use of pulsed laser were crystalline, while those obtained by the use of CW laser were amorphous.The shape and size of particles are consistent with the explosive ejection as formation mechanism.

View Article: PubMed Central - HTML - PubMed

Affiliation: Dpto, Física Aplicada, Universidad de Vigo, Lagoas-Marcosende, 9, Vigo 36310, Spain. mohamed@uvigo.es.

ABSTRACT
Laser ablation of solids in liquids technique has been used to obtain colloidal nanoparticles from biological hydroxylapatite using pulsed as well as a continuous wave (CW) laser. Transmission electron microscopy (TEM) measurements revealed the formation of spherical particles with size distribution ranging from few nanometers to hundred nanometers and irregular submicronic particles. High resolution TEM showed that particles obtained by the use of pulsed laser were crystalline, while those obtained by the use of CW laser were amorphous. The shape and size of particles are consistent with the explosive ejection as formation mechanism.

No MeSH data available.