Stability and<i>in vivo</i>safety of gold, titanium nitride and parylene C coatings on NdFeB magnets implanted in muscles towards a new generation of myokinetic prosthetic limbs
Veronica Iacovacci, Irene Naselli, Alice Rita Salgarella, Francesco Clemente, Leonardo Ricotti, Christian Cipriani
Abstract
testing in a tissue-mimicking environment and upon contact with C2C12 myoblasts enabled assessment of the superiority of parylene C coated magnets in terms of corrosion prevention and lack of cytotoxicity. In addition, parylene C coated magnets implanted in rabbit muscles for 28 days confirmed, both locally and systemically, their biocompatibility, with a lack of irritation and toxicity associated with the implant. These findings pave the way towards the development of implantable devices based on permanent magnets and of a new generation of limb prostheses.
Topics & Concepts
Neodymium magnetMaterials scienceBiocompatibilityMagnetCorrosionCoatingBiomedical engineeringIn vivoTitaniumTitanium nitrideParyleneImplantMetallurgyNitrideSurgeryComposite materialPolymerMedicineLayer (electronics)Mechanical engineeringEngineeringBiotechnologyBiologyNeuroscience and Neural EngineeringMuscle activation and electromyography studiesTranscranial Magnetic Stimulation Studies