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Primary Research

A biocompatibility study of injectable poly(caprolactone-trifumarate) for use as a bone substitute material

, , , , &
Pages 215-222 | Received 13 Oct 2014, Accepted 11 May 2015, Published online: 16 Jul 2015
 

Abstract

The need for bone graft alternatives has led to the development of numerous bone graft substitutes. Here, the authors have synthesized a biodegradable poly(caprolactone-trifumarate) (PCLTF) polymer solution that could be injected into any bony defect. This polymer solution was synthesized using polycaprolactone-triol and fumaryl chloride (FCl). PCLTF is a multiple-branching, unsaturated and cross-linkable in situ material. The surface microstructure of PCLTF was investigated using a field emission scanning electron microscope. The incorporation of double bonds originating from FCl into the poly(caprolactone) backbone was confirmed in the Fourier transform infrared spectra. The in vitro cytotoxic effects of PCLTF, its leachable extracts and degradation products were evaluated in direct and indirect contact tests against human oral fibroblasts. Cell viability was evaluated using the microculture tetrazolium assay and cytotoxicity evaluations of PCLTF were tested in accordance with ISO 10993-5 standards. The results showed that there was evidence of reasonable cell growth, good cell viability and intact cell morphology after exposure to PCLTF, its extracts and degradation products. There was no evidence of critical cytotoxic effects.

Disclosure statement

The authors declare that they have no conflict of interest.

Additional information

Funding

This work was supported by the University of Malaya grant nos RG384-11HTM and UM.C/625/1/HIR/MOHE/05.

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