Synthesis and characterization of silicon substituted hydroxyapatite

S. R. Kim; D. H. Riu; Y. J. Lee; Y. H. Kim

Synthesis and characterization of silicon substituted hydroxyapatite

S. R. Kim, D. H. Riu, Y. J. Lee, Y. H. Kim

Dept. of Materials Science & Engineering

Korea Institute of Ceramic Engineering And Technology

Research output: Contribution to journal › Conference article › peer-review

31 Scopus citations

Abstract

A silicon-substituted hydroxyapatite has been prepared using tetraethylorthosilicate as a silicon source to obtain a biomaterial having an improved biocompatibility. From the XRD analysis, it was confirmed that the single-phase hydroxyapatite containing silicon has formed without revealing the presence of extra phases related to silicon oxide or other calcium phosphate species. Silicon content was up to 3.32% by weight. ²⁹Si MAS NMR investigation elucidated the presence of tetrahedral silicate in the framework of hydroxyapatite structure. Substitution of silicon into the hydroxyapatite framework (Ca₁₀(PO₄)_6-x(SiO₄)_x(OH) _2-x) reduced the amount of hydroxyl group to compensate for the extra negative charge of the silicate group, which is confirmed by FT-IR.

Original language	English
Pages (from-to)	85-88
Number of pages	4
Journal	Key Engineering Materials
Volume	218-220
State	Published - 2002
Event	14th International Symposium on Ceramics in Medicine-Annual Meeting of the International Society for Ceramics in Medicine BIOCERAMICS'01 (ISCM) - Palm Springs, CA, United States Duration: 14 Nov 2001 → 17 Nov 2001

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title = "Synthesis and characterization of silicon substituted hydroxyapatite",

abstract = "A silicon-substituted hydroxyapatite has been prepared using tetraethylorthosilicate as a silicon source to obtain a biomaterial having an improved biocompatibility. From the XRD analysis, it was confirmed that the single-phase hydroxyapatite containing silicon has formed without revealing the presence of extra phases related to silicon oxide or other calcium phosphate species. Silicon content was up to 3.32\% by weight. 29Si MAS NMR investigation elucidated the presence of tetrahedral silicate in the framework of hydroxyapatite structure. Substitution of silicon into the hydroxyapatite framework (Ca10(PO4)6-x(SiO4)x(OH) 2-x) reduced the amount of hydroxyl group to compensate for the extra negative charge of the silicate group, which is confirmed by FT-IR.",

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year = "2002",

language = "English",

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journal = "Key Engineering Materials",

issn = "1013-9826",

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note = "14th International Symposium on Ceramics in Medicine-Annual Meeting of the International Society for Ceramics in Medicine BIOCERAMICS'01 (ISCM) ; Conference date: 14-11-2001 Through 17-11-2001",

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TY - JOUR

T1 - Synthesis and characterization of silicon substituted hydroxyapatite

AU - Kim, S. R.

AU - Riu, D. H.

AU - Lee, Y. J.

AU - Kim, Y. H.

PY - 2002

Y1 - 2002

N2 - A silicon-substituted hydroxyapatite has been prepared using tetraethylorthosilicate as a silicon source to obtain a biomaterial having an improved biocompatibility. From the XRD analysis, it was confirmed that the single-phase hydroxyapatite containing silicon has formed without revealing the presence of extra phases related to silicon oxide or other calcium phosphate species. Silicon content was up to 3.32% by weight. 29Si MAS NMR investigation elucidated the presence of tetrahedral silicate in the framework of hydroxyapatite structure. Substitution of silicon into the hydroxyapatite framework (Ca10(PO4)6-x(SiO4)x(OH) 2-x) reduced the amount of hydroxyl group to compensate for the extra negative charge of the silicate group, which is confirmed by FT-IR.

AB - A silicon-substituted hydroxyapatite has been prepared using tetraethylorthosilicate as a silicon source to obtain a biomaterial having an improved biocompatibility. From the XRD analysis, it was confirmed that the single-phase hydroxyapatite containing silicon has formed without revealing the presence of extra phases related to silicon oxide or other calcium phosphate species. Silicon content was up to 3.32% by weight. 29Si MAS NMR investigation elucidated the presence of tetrahedral silicate in the framework of hydroxyapatite structure. Substitution of silicon into the hydroxyapatite framework (Ca10(PO4)6-x(SiO4)x(OH) 2-x) reduced the amount of hydroxyl group to compensate for the extra negative charge of the silicate group, which is confirmed by FT-IR.

UR - http://www.scopus.com/inward/record.url?scp=0036171911&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0036171911

SN - 1013-9826

VL - 218-220

SP - 85

EP - 88

JO - Key Engineering Materials

JF - Key Engineering Materials

T2 - 14th International Symposium on Ceramics in Medicine-Annual Meeting of the International Society for Ceramics in Medicine BIOCERAMICS'01 (ISCM)

Y2 - 14 November 2001 through 17 November 2001

ER -

Synthesis and characterization of silicon substituted hydroxyapatite

Abstract

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