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Synthesis of Nanosized and Microporous Precipitated Hydroxyapatite in Synthetic Polymers and Biopolymers
Author(s) -
Sinha Arvind,
Nayar Suprabha,
Agrawal Archana,
Bhattacharyya Debasish,
Ramachandrarao Patcha
Publication year - 2003
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2003.tb00024.x
Subject(s) - microporous material , biomineralization , precipitation , chemical engineering , vinyl alcohol , materials science , thermal stability , polymer , phase (matter) , crystallization , calcium , chemistry , organic chemistry , metallurgy , composite material , physics , meteorology , engineering
In situ precipitation of microporous and nanosized hydroxyapatite particles (5–40 nm) has been conducted in poly(vinyl alcohol) and bovine serum albumin gels. The process, which is similar to biomineralization, is highly controlled with respect to microstructural features, such as size and shape, and to precipitation of hydroxyapatite phase having a calcium:phosphorus stoichiometric ratio of 1.67. Nanosized precipitated hydroxyapatite particles show remarkable thermal stability and do not decompose to other calcium phosphate phases, even at higher temperatures.