Carbonate hydroxyapatite functionalization: a comparative study towards (bio)molecules fixation

Author:

Russo Laura1,Taraballi Francesca1,Lupo Cristina1,Poveda Ana2,Jiménez-Barbero Jesús13,Sandri Monica4,Tampieri Anna4,Nicotra Francesco1,Cipolla Laura1

Affiliation:

1. Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, Milano 20126, Italy

2. Servicio Interdepartamental de Investigación, University Autonoma of Madrid, Madrid 28049, Spain

3. Department of Chemical and Phisical Biology, Centro de Invesigaciones Biológicas, CSIC, Ramiro de Maeztu 9, Madrid 28040, Spain

4. Institute of Science and Technology for Ceramics – National Research Council of Italy (ISTEC-CNR), Via Granarolo, 64, Faenza, Ravenna 48018, Italy

Abstract

Different methods for the functionalization of carbonate hydroxyapatite granules with free amine groups by reaction with (3-aminopropyl)triethoxysilane (APTES) have been compared in order to improve the potential for tethering of bioactive molecules to bioceramics. The combined use of tetraethoxyorthosilicate and APTES with acid catalysis resulted in an evident increase in amine surface grafting.

Publisher

The Royal Society

Subject

Biomedical Engineering,Biomaterials,Biochemistry,Bioengineering,Biophysics,Biotechnology

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