Synthesis of nanoporous calcium phosphate spheres using poly(acrylic acid) as a structuring unit

Peng Wang; Se Won Yook; Shin Hee Jun; Yuan Long Li; Miyoung Kim; Hyoun Ee Kim; Young Hag Koh

doi:10.1016/j.matlet.2009.02.033

Synthesis of nanoporous calcium phosphate spheres using poly(acrylic acid) as a structuring unit

Peng Wang, Se Won Yook, Shin Hee Jun, Yuan Long Li, Miyoung Kim, Hyoun Ee Kim, Young Hag Koh

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

Calcium phosphate (CaP) spheres with nanopores were synthesized using poly(acrylic acid) (PAA) as the structuring unit. In this method, colloidal droplets of the PAA/Ca²⁺ complex were prepared by adding a Ca(NO₃)₂ solution to a PAA aqueous solution and then mixed with an (NH₄)₂HPO₄ solution, which allowed the nucleation and growth of CaP nanocrystals in the PAA matrix. Thereafter, the as-synthesized PAA/CaP spheres were heat-treated at 550 °C for 3 h to remove the PAA phase, followed by treatment in ammonium nitrate solution to remove the CaO phase formed as an impurity. The prepared CaP spheres showed a narrow size distribution with an average diameter of 146 ± 43 nm and nanopores formed via the removal of the CaO phase.

Original language	English
Pages (from-to)	1207-1209
Number of pages	3
Journal	Materials Letters
Volume	63
Issue number	13-14
DOIs	https://doi.org/10.1016/j.matlet.2009.02.033
Publication status	Published - 2009 May 31

Bibliographical note

Funding Information:
This research was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by Ministry of Knowledge Economy, Republic of Korea.

Keywords

Calcium phosphate spheres
Ceramics
Poly(acrylic acid)
Powder technology

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2009.02.033

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title = "Synthesis of nanoporous calcium phosphate spheres using poly(acrylic acid) as a structuring unit",

abstract = "Calcium phosphate (CaP) spheres with nanopores were synthesized using poly(acrylic acid) (PAA) as the structuring unit. In this method, colloidal droplets of the PAA/Ca2+ complex were prepared by adding a Ca(NO3)2 solution to a PAA aqueous solution and then mixed with an (NH4)2HPO4 solution, which allowed the nucleation and growth of CaP nanocrystals in the PAA matrix. Thereafter, the as-synthesized PAA/CaP spheres were heat-treated at 550 °C for 3 h to remove the PAA phase, followed by treatment in ammonium nitrate solution to remove the CaO phase formed as an impurity. The prepared CaP spheres showed a narrow size distribution with an average diameter of 146 ± 43 nm and nanopores formed via the removal of the CaO phase.",

keywords = "Calcium phosphate spheres, Ceramics, Poly(acrylic acid), Powder technology",

author = "Peng Wang and Yook, {Se Won} and Jun, {Shin Hee} and Li, {Yuan Long} and Miyoung Kim and Kim, {Hyoun Ee} and Koh, {Young Hag}",

note = "Funding Information: This research was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by Ministry of Knowledge Economy, Republic of Korea.",

year = "2009",

month = may,

day = "31",

doi = "10.1016/j.matlet.2009.02.033",

language = "English",

volume = "63",

pages = "1207--1209",

journal = "Materials Letters",

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TY - JOUR

T1 - Synthesis of nanoporous calcium phosphate spheres using poly(acrylic acid) as a structuring unit

AU - Wang, Peng

AU - Yook, Se Won

AU - Jun, Shin Hee

AU - Li, Yuan Long

AU - Kim, Miyoung

AU - Kim, Hyoun Ee

AU - Koh, Young Hag

N1 - Funding Information: This research was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by Ministry of Knowledge Economy, Republic of Korea.

PY - 2009/5/31

Y1 - 2009/5/31

N2 - Calcium phosphate (CaP) spheres with nanopores were synthesized using poly(acrylic acid) (PAA) as the structuring unit. In this method, colloidal droplets of the PAA/Ca2+ complex were prepared by adding a Ca(NO3)2 solution to a PAA aqueous solution and then mixed with an (NH4)2HPO4 solution, which allowed the nucleation and growth of CaP nanocrystals in the PAA matrix. Thereafter, the as-synthesized PAA/CaP spheres were heat-treated at 550 °C for 3 h to remove the PAA phase, followed by treatment in ammonium nitrate solution to remove the CaO phase formed as an impurity. The prepared CaP spheres showed a narrow size distribution with an average diameter of 146 ± 43 nm and nanopores formed via the removal of the CaO phase.

AB - Calcium phosphate (CaP) spheres with nanopores were synthesized using poly(acrylic acid) (PAA) as the structuring unit. In this method, colloidal droplets of the PAA/Ca2+ complex were prepared by adding a Ca(NO3)2 solution to a PAA aqueous solution and then mixed with an (NH4)2HPO4 solution, which allowed the nucleation and growth of CaP nanocrystals in the PAA matrix. Thereafter, the as-synthesized PAA/CaP spheres were heat-treated at 550 °C for 3 h to remove the PAA phase, followed by treatment in ammonium nitrate solution to remove the CaO phase formed as an impurity. The prepared CaP spheres showed a narrow size distribution with an average diameter of 146 ± 43 nm and nanopores formed via the removal of the CaO phase.

KW - Calcium phosphate spheres

KW - Ceramics

KW - Poly(acrylic acid)

KW - Powder technology

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U2 - 10.1016/j.matlet.2009.02.033

DO - 10.1016/j.matlet.2009.02.033

M3 - Article

AN - SCOPUS:62849086338

SN - 0167-577X

VL - 63

SP - 1207

EP - 1209

JO - Materials Letters

JF - Materials Letters

IS - 13-14

ER -

Synthesis of nanoporous calcium phosphate spheres using poly(acrylic acid) as a structuring unit

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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