Novel magnesium alloy Mg-2La caused no cytotoxic effects on cells in physiological conditions

verfasst von

Andreas Weizbauer, Jan Marten Seitz, Peter Werle, Jan Hegermann, Elmar Willbold, Rainer Eifler, Henning Windhagen, Janin Reifenrath, Hazibullah Waizy

Abstract

Using several different in vitro assays, a new biodegradable magnesium alloy Mg-2La, composed of 98% magnesium and 2% lanthanum, was investigated as a possible implant material for biomedical applications. An in vitro cytotoxicity test, according to EN ISO 10993-5/12, with L929 and human osteoblastic cells identified no toxic effects on cell viability at physiological concentrations (at 50% dilutions and higher). The metabolic activity of human osteoblasts in the 100% extract was decreased to < 70% and was therefore rated as cytotoxic. The degradation rates of Mg-2La were evaluated in phosphate buffered saline and four different cell culture media. The degradation rates were shown to be influenced by the composition of the solution, and the addition of fetal bovine serum slightly accelerated the corrosive process. The results of these in vitro experiments suggest that Mg-2La is a promising candidate for use as an orthopedic implant material.

Organisationseinheit(en)

Fachgebiet Hochspannungstechnik und Asset Management (Schering-Institut)
Institut für Werkstoffkunde

Externe Organisation(en)

Medizinische Hochschule Hannover (MHH)
Stiftung Tierärztliche Hochschule Hannover

Typ

Artikel

Journal

Materials Science and Engineering C

Band

41

Seiten

267-273

Anzahl der Seiten

7

ISSN

0928-4931

Publikationsdatum

01.08.2014

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Werkstoffwissenschaften (insg.), Physik der kondensierten Materie, Werkstoffmechanik, Maschinenbau

Elektronische Version(en)

https://doi.org/10.1016/j.msec.2014.04.063 (Zugang: Unbekannt)