Volume 106, Issue 3 pp. 1138-1147
Original Research Report

Enhancement of plasma protein adsorption and osteogenesis of hMSCs by functionalized siloxane coatings for titanium implants

Maria Martínez-Ibáñez

Corresponding Author

Maria Martínez-Ibáñez

Polymer Science and Technology Department, University of the Basque Country (UPV/EHU), San Sebastián, Spain

Correspondence to: M. Martínez-Ibáñez; e-mail: [email protected]Search for more papers by this author
N. Sanjeeva Murthy

N. Sanjeeva Murthy

New Jersey Center for Biomaterials, Rutgers University, Piscataway, New Jersey

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Yong Mao

Yong Mao

New Jersey Center for Biomaterials, Rutgers University, Piscataway, New Jersey

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Julio Suay

Julio Suay

Industrial Systems Engineering and Design Department, Jaime I University (UJI), Castellón de la Plana, Spain

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Marilo Gurruchaga

Marilo Gurruchaga

Polymer Science and Technology Department, University of the Basque Country (UPV/EHU), San Sebastián, Spain

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Isabel Goñi

Isabel Goñi

Polymer Science and Technology Department, University of the Basque Country (UPV/EHU), San Sebastián, Spain

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Joachim Kohn

Joachim Kohn

New Jersey Center for Biomaterials, Rutgers University, Piscataway, New Jersey

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First published: 25 May 2017
Citations: 14

Abstract

A series of sol–gel derived silicon based coatings were developed to improve the osseointegration of commercial titanium dental implants. The osseointegration starts with a positive interaction between the implant surface and surrounding tissues, which is facilitated by the adsorption of plasma proteins onto the biomaterial surface immediately after implantation. It is likely that the enhancement of protein adsorption to titanium implants leads to a better implant/tissue integration. In addition, silica based biomaterials have been shown to promote osteoblast differentiation. To improve the protein adsorption and the osteogenesis, methyltrimethoxysilane (MTMOS), tetraethoxysilane (TEOS), 3-glycidoxypropyltrimethoxysilane (GPTMS), and gelatin were selected to coat titanium surfaces. Compared with non-coated titanium, the functionalized coatings enhanced the adsorption of adhesive proteins such as fibronectin and collagen. The Si release was successfully modulated by the control of the chemical composition of the coating, showing a higher dissolution rate with the gelatin and GPTMS incorporation. While the roughness of commercial implants seemed to promote the adhesion of mesenchymal stem cells (MSC), the osteogenic differentiation was greater on surfaces with Si-coatings. In this study, an improved osteogenic surface has been achieved by using the siloxane-gelatin coatings and such coatings can be used in dental implants to promote osseointegration. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1138–1147, 2018.

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