Cytotoxicity assessment of corrosion products of nitinol alloys

W. Haider, N. Munroe, C. Pulletikurthi, P. K.S. Gill, S. Shah, A. J. McGoron

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Nitinol alloys are extensively explored for biomedical applications, such as cardiovascular stents, guide wires, etc. However, continued usage of Nitinol depends on a better understanding of the effects of Ni release from its surface. Ni has been found to have carcinogenic and deleterious effects on the liver and kidney and it also causes necrosis. In this investigation, in vitro cyclic potentiodynamic polarization tests were conducted at 37°C using Phosphate Buffer Saline (PBS) as an electrolyte. The metal ions in the electrolyte after each test were measured by inductively coupled plasma mass spectrometry (ICPMS). Endothelial cells were grown in various proportions of resulting electrolyte and the fresh PBS, and the dosage of these solutions on cell proliferation and viability were assessed by performing SRB assays. These properties were then correlated with the concentration of the dissolved ions in the electrolyte.

Original languageEnglish
Title of host publicationMedical Device Materials V - Proceedings of the Materials and Processes for Medical Devices Conference
Pages3-5
Number of pages3
StatePublished - 2010
Event5th Materials and Processes for Medical Devices Conference, MPMD - Minneapolis, MN, United States
Duration: Aug 10 2009Aug 12 2009

Publication series

NameMedical Device Materials V - Proceedings of the Materials and Processes for Medical Devices Conference

Conference

Conference5th Materials and Processes for Medical Devices Conference, MPMD
Country/TerritoryUnited States
CityMinneapolis, MN
Period08/10/0908/12/09

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