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Coupling of Phosphates on Alumina Surfaces for Bioactivation
Author(s) -
Kaltenborn Nadine,
Sax Michael,
Müller Frank A.,
Müller Lenka,
Dieker Henning,
Kaiser Arno,
Telle Rainer,
Fischer Horst
Publication year - 2007
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.1551-2916.2007.01601.x
Subject(s) - apatite , simulated body fluid , ceramic , phosphate , contact angle , infrared spectroscopy , chemistry , materials science , chemical engineering , coupling (piping) , diffraction , mineralogy , metallurgy , composite material , organic chemistry , physics , optics , engineering
This paper reports on a new surface treatment, coupling phosphates on alumina surfaces for bioactivation. Alumina samples were treated in monoaluminumphosphate solution at 1400°C. Strongly coupled aluminum phosphates due to the treatment were proved by X‐ray diffraction and infrared spectroscopy. Contact angle measurements proved the hydrophilic nature of the treated surface. In vitro tests in simulated body fluid indicated a bioactive behavior by means of apatite‐forming ability. Such functionalized alumina ceramics imply the potential for a new class of bioactive high‐strength ceramic implant materials, due to a pronounced affinity of bioactive phosphate groups to particular amino acid sequences of proteins.