Abstract
A new type of hyperthermia or magnetic resonance imaging materials with bone-bonding ability was explored within the framework of magnetic-bone mineral composite ceramics. That is, hydroxyapatite (HAp) nanoparticles, hybridized with ferrous (Fe2+) and ferric (Fe3+) ions (Fe(II) and Fe(III)), were synthesized through the wet chemical procedure, and characterized in terms of crystal structures, magnetic properties and protein adsorption properties. The as-synthesized particles derived from precursor solutions with FeCl2 consisted of hydroxyapatite (JCPDS 09-0432) (20-30 nm in size) and magnetite (JCPDS 19-0629) (2-5 nm in size). They showed super-paramagnetic behavior, yet their saturation magnetization increased with the content of Fe(II) in the solutions up to 4.3 emu/g. From TEM observations, the HAp particles were rod-like, by which the magnetite particles that seemed spherical rather than showing cubic morphology, were surrounded. The particles from the solutions with Fe(III) gave only HAp, and hence Fe(III) was considered to form an amorphous phase. Moreover, Fe(III) incorporation suppressed HAp crystal growth.
| Original language | English |
|---|---|
| Title of host publication | Ceramic Engineering and Science Proceedings |
| Pages | 105-112 |
| Number of pages | 8 |
| Volume | 30 |
| Edition | 6 |
| Publication status | Published - 2010 |
| Event | Advances in Bioceramics and Porous Ceramics II - 33rd International Conference on Advanced Ceramics and Composites - Daytona Beach, FL, United States Duration: Jan 18 2009 → Jan 23 2009 |
Other
| Other | Advances in Bioceramics and Porous Ceramics II - 33rd International Conference on Advanced Ceramics and Composites |
|---|---|
| Country | United States |
| City | Daytona Beach, FL |
| Period | 1/18/09 → 1/23/09 |
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ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry
Cite this
Synthesis and characterization of wet chemically derived magnetite-hap hybrid nanoparticles. / Hayakawa, Satoshi; Tsuru, K.; Matsumoto, A.; Osaka, A.; Fujii, E.; Kawabata, K.
Ceramic Engineering and Science Proceedings. Vol. 30 6. ed. 2010. p. 105-112.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Synthesis and characterization of wet chemically derived magnetite-hap hybrid nanoparticles
AU - Hayakawa, Satoshi
AU - Tsuru, K.
AU - Matsumoto, A.
AU - Osaka, A.
AU - Fujii, E.
AU - Kawabata, K.
PY - 2010
Y1 - 2010
N2 - A new type of hyperthermia or magnetic resonance imaging materials with bone-bonding ability was explored within the framework of magnetic-bone mineral composite ceramics. That is, hydroxyapatite (HAp) nanoparticles, hybridized with ferrous (Fe2+) and ferric (Fe3+) ions (Fe(II) and Fe(III)), were synthesized through the wet chemical procedure, and characterized in terms of crystal structures, magnetic properties and protein adsorption properties. The as-synthesized particles derived from precursor solutions with FeCl2 consisted of hydroxyapatite (JCPDS 09-0432) (20-30 nm in size) and magnetite (JCPDS 19-0629) (2-5 nm in size). They showed super-paramagnetic behavior, yet their saturation magnetization increased with the content of Fe(II) in the solutions up to 4.3 emu/g. From TEM observations, the HAp particles were rod-like, by which the magnetite particles that seemed spherical rather than showing cubic morphology, were surrounded. The particles from the solutions with Fe(III) gave only HAp, and hence Fe(III) was considered to form an amorphous phase. Moreover, Fe(III) incorporation suppressed HAp crystal growth.
AB - A new type of hyperthermia or magnetic resonance imaging materials with bone-bonding ability was explored within the framework of magnetic-bone mineral composite ceramics. That is, hydroxyapatite (HAp) nanoparticles, hybridized with ferrous (Fe2+) and ferric (Fe3+) ions (Fe(II) and Fe(III)), were synthesized through the wet chemical procedure, and characterized in terms of crystal structures, magnetic properties and protein adsorption properties. The as-synthesized particles derived from precursor solutions with FeCl2 consisted of hydroxyapatite (JCPDS 09-0432) (20-30 nm in size) and magnetite (JCPDS 19-0629) (2-5 nm in size). They showed super-paramagnetic behavior, yet their saturation magnetization increased with the content of Fe(II) in the solutions up to 4.3 emu/g. From TEM observations, the HAp particles were rod-like, by which the magnetite particles that seemed spherical rather than showing cubic morphology, were surrounded. The particles from the solutions with Fe(III) gave only HAp, and hence Fe(III) was considered to form an amorphous phase. Moreover, Fe(III) incorporation suppressed HAp crystal growth.
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UR - http://www.scopus.com/inward/citedby.url?scp=77952002960&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:77952002960
SN - 9780470457566
VL - 30
SP - 105
EP - 112
BT - Ceramic Engineering and Science Proceedings
ER -