Porous hydroxyapatite and glass reinforced hydroxyapatite for controlled release of sodium ampicillin

• Type: Article in International Scientific Journal
• Date: 2004

Authors

A. C. Queiroz (Author) Other; S. Teixeira (Author) Other; José Santos (Author) FEUP; Fernando Jorge Monteiro (Author) FEUP

Journal

Title: Bioceramics

Vol. 254-2

Pages: 997-1000

Indexing

ISI Web of Knowledge - 11 Citations

ISI Web of Science

Scopus - 8 Citations

COMPENDEX

Scientific classification

FOS: Engineering and technology > Environmental biotechnology

Other information

Authenticus ID: P-000-CBT

DOI: 10.4028/www.scientific.net/KEM.254-256.997

Abstract (EN): Porous hydroxyapatite (HA) and glass reinforced hydroxyapatite (GRHA) with adequate macro and microporous structure were developed, aiming at being used as drug delivery carrier of antibiotics, for the in situ treatment of periodontitis. Materials were characterised by XRD and FTIR, presenting no changes from similar dense materials. Mercury intrusion porosimetry revealed micropores of less than 1 mum, accounting for 15% of the total porosity. Compression tests have shown close values for HA and GRHA, with the former showing slightly higher values of strength. Ampicillin adsorption was more effective on porous than on dense HA, and was similar for HA and GRHA.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4