In vivo biocompatibility of boron doped and nitrogen included conductive-diamond for use in medical implants

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dc.contributor.authorGarrett, David
dc.contributor.authorSaunders, Alexia
dc.contributor.authorMcGowan, Ceara
dc.contributor.authorSpecks, Joscha
dc.contributor.authorGanesan, Kumaravelu
dc.contributor.authorMeffin, Hamish
dc.contributor.authorWilliams, Richard
dc.contributor.authorNayagam, David
dc.date.accessioned2015-05-18T04:30:33Z
dc.date.available2015-05-18T04:30:33Z
dc.date.issued2015-01
dc.description.abstractRecently, there has been interest in investigating diamond as a material for use in biomedical implants. Diamond can be rendered electrically conducting by doping with boron or nitrogen. This has led to inclusion of boron doped and nitrogen included diamond elements as electrodes and/or feedthroughs for medical implants. As these conductive device elements are not encapsulated, there is a need to establish their clinical safety for use in implants. This article compares the biocompatibility of electrically conducting boron doped diamond (BDD) and nitrogen included diamond films and electrically insulating poly crystalline diamond films against a silicone negative control and a BDD sample treated with stannous octoate as a positive control. Samples were surgically implanted into the back muscle of a guinea pig for a period of 4-15 weeks, excised and the implant site sectioned and submitted for histological analysis. All forms of diamond exhibited a similar or lower thickness of fibrotic tissue encapsulating compared to the silicone negative control samples. All forms of diamond exhibited similar or lower levels of acute, chronic inflammatory, and foreign body responses compared to the silicone negative control indicating that the materials are well tolerated in vivo. (c) 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2015.en_US
dc.description.sponsorshipDJG is supported by ARC DECRA grant DE130100922.The Bionics Institute acknowledges the support they receive from the Victorian Government through its Operational Infrastructure Program. NICTA is funded by the Australian Government as represented by the Department of Broadband, Communications and the Digital Economy and the Australian Research Council through the ICT Centre of Excellence program. This research was supported by the Australian Research Council (ARC) through its Special Research Initiative (SRI) in Bionic Vision Science and Technology grant to Bionic Vision Australia (BVA).en_US
dc.identifier.citationGarrett, D. J., A. L. Saunders, C. McGowan, J. Specks, K. Ganesan, H. Meffin, R. A. Williams and D. A. Nayagam (2015). In vivo biocompatibility of boron doped and nitrogen included conductive-diamond for use in medical implants. Journal of biomedical materials research. Part B, Applied biomaterials.en_US
dc.identifier.issn1552-4981 (Electronic) 1552-4973 (Linking)
dc.identifier.urihttp://repository.bionicsinstitute.org:8080/handle/123456789/124
dc.language.isoenen_US
dc.publisherJohn Wiley & Sons Incen_US
dc.subjectbiocompatibility/soft tissueen_US
dc.subjectimplant designen_US
dc.subjectin vivoen_US
dc.subjectnanomodified surfacesen_US
dc.subjectneural prosthesisen_US
dc.titleIn vivo biocompatibility of boron doped and nitrogen included conductive-diamond for use in medical implantsen_US
dc.typeArticleen_US
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