Substitution of manganese and iron into hydroxyapatite: Core/shell nanoparticles

Pon-On, Weeraphat; Meejoo, Siwaporn; Tang, I‐Ming

doi:10.1016/j.materresbull.2007.09.004

Cited by 42 publications

(25 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several studies have looked at insertion of ferrites into the HAP [16,17]. Two of the present authors (WP and IMT) found that the insertion of the spinel ferrite MnFe 2 O 4 through a wet chemistry process resulted in nanoparticles having a core-shell structure (in which the core was made up of the ferrite and the shell of HAP [17]). It was shown that the Mn 2+ ions substituted into the Ca 2+ sites which were nine-fold coordinated (Ca(1) sites).…”

Section: Introductionmentioning

confidence: 76%

“…There have been many studies on the fabrication of HAP [13][14][15]. Several studies have looked at insertion of ferrites into the HAP [16,17]. Two of the present authors (WP and IMT) found that the insertion of the spinel ferrite MnFe 2 O 4 through a wet chemistry process resulted in nanoparticles having a core-shell structure (in which the core was made up of the ferrite and the shell of HAP [17]).…”

Section: Introductionmentioning

confidence: 80%

“…As in the previous study [17], the microwave irradiation technique is used to produce the doped Ca 10À2x Fe 2x Co x (PO 4 ) 6 (OH) 2 (x ¼ 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5). In Section 2, we describe the microwave irradiation technique used to produce the Fe 3+ /Co 2+ -doped calcium phosphate powders and the measurements carried out.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Magnetic properties of Co-ferrite-doped hydroxyapatite nanoparticles having a core/shell structure

Petchsang

Pon-On

Hodak

et al. 2009

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 80%

See 1 more Smart Citation

Magnetic properties of Co-ferrite-doped hydroxyapatite nanoparticles having a core/shell structure

Petchsang

Pon-On

Hodak

et al. 2009

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

“…For these applications, it is important to ensure the biocompatibility since the ferrite nanoparticles should be introduced into the blood vessels. Therefore, the surface of the ferrite nanoparticles has been coated with bio-compatible materials such as gold (Au) [17,18], polymer [19,20], silica (SiO 2 ) [21,22], titania (TiO 2 ) [23] and hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 , HAp) [24][25][26][27]. Among these, HAp coated core/shell structured ferrite nanoparticles is one of the most promising materials.…”

Section: Introductionmentioning

confidence: 99%

Preparation of hydroxyapatite–ferrite composite particles by ultrasonic spray pyrolysis

Wakiya¹,

Yamasaki²,

Adachi³

et al. 2010

Materials Science and Engineering: B

View full text Add to dashboard Cite

a b s t r a c tBio-compatible composite particles composed of hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 , HAp) and ferrite (maghemite (␥-Fe 2 O 3 ) or magnetite (Fe 3 O 4 )) were synthesized by two-step synthesis. In this work, coprecipitation method using aqueous solution of FeSO 4 and FeCl 3 was employed to synthesize ␥-Fe 2 O 3 and Fe 3 O 4 particles. It was found that the resultant phase was changed by the molar ratio of FeSO 4 and FeCl 3 , and optimal molar ratio to suppress the coexistence of ␣-FeOOH was FeSO 4 /FeCl 3 = 2. The suspension composed of crushed ferrite particles, Ca(NO 3 ) 2 and H 3 PO 4 aqueous solution with surfactant ultrasonically nebulized into mist and the mist was pyrolyzed at 500 • C to synthesize HAp-ferrite composite particles. The shape of the synthesized composite particle was round with dimple, and the particle size was around 0.5-3 m in diameter. The composite particle showed saturation magnetization of 0.833 emu/g. Net saturation magnetization of the ferrite component was calculated to be 46.4 or 48.0 emu/g under the assumption that the ferrite was composed of ␥-Fe 2 O 3 or Fe 3 O 4 , respectively.

show abstract

“…An infrared study was carried out on sol-gel derived Mn-doped HA [17] and on the substitution of Mn and Fe in HA [18].…”

Section: Introductionmentioning

confidence: 99%

Divalent Mn in calcium hydroxyapatite by pulse laser deposition

Mayer

Petö

Karacs

et al. 2010

Journal of Inorganic Biochemistry

View full text Add to dashboard Cite

Substitution of manganese and iron into hydroxyapatite: Core/shell nanoparticles

Cited by 42 publications

References 12 publications

Magnetic properties of Co-ferrite-doped hydroxyapatite nanoparticles having a core/shell structure

Magnetic properties of Co-ferrite-doped hydroxyapatite nanoparticles having a core/shell structure

Preparation of hydroxyapatite–ferrite composite particles by ultrasonic spray pyrolysis

Divalent Mn in calcium hydroxyapatite by pulse laser deposition

Contact Info

Product

Resources

About