Hydroxyapatite Nucleation on Modified Silicon Surface for Use in Biosensors

Abstract:

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In this work, we explore the deposition of single-phase and uniform HA coatings on a crystalline silicon surface of microelectronic quality. The used methodology includes an NaOH treatment to produce the silanization of Si surface and a modified biomimetic technique, using sodium silicate solution (SS) as nucleant agent, for apatite-based coating formation. The sodium silicate solution (SS) demonstrated to be effective for the calcium phosphate layer formation, but the treatment can reduce the induction to obtain a uniform surface coating of HA. This suggests that, among the factors that determine nucleation of calcium phosphate on silicon, surface electrical charge could play a key role.

Info:

Periodical:

Key Engineering Materials (Volumes 396-398)

Main Theme:

Edited by:

Marcelo Prado and Cecília Zavaglia

Pages:

337-340

DOI:

10.4028/www.scientific.net/KEM.396-398.337

Citation:

L. C. de Oliveira Vercik et al., "Hydroxyapatite Nucleation on Modified Silicon Surface for Use in Biosensors", Key Engineering Materials, Vols. 396-398, pp. 337-340, 2009

Online since:

October 2008

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Price:

$35.00

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