| 摘要 |
The invention concerns a stable aqueous colloidal dispersion with apatite structure, having a pH ranging between 3.5 and 9,5, oblong-shaped with average length between 20 and 200 nm and an equivalent aspect ratio (average length/equivalent diameter ratio) between 5 and 500, and comprising as stabilising agent a compound of formula (I), a compound of formula (II) or a compound of formula (III), such as defined below, optionally in ionized form, or a mixture of said compounds, said colloids with apatite structure corresponding to formula (IV): Ca10-x(HPO4)x(PO4)6-x(J)2-x, wherein x and J are such as defined in claim 1, the stabilising agents corresponding to formula (I), wherein p, X, G1, n, R and m are such as defined in claim 1; the stabilising agents corresponding to formula (II), wherein A, X''', K, n' and R' are such as defined in claim 1; the stabilising agents corresponding to formula (III), wherein X, G1, n and R are such as described in claim 1. |
