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Publication Type : Journal Article
Thematic Areas : Nanosciences and Molecular Medicine
Publisher : Nanoscale
Source : Nanoscale, Volume 7, Issue 2, p.832-841 (2015)
Campus : Kochi
School : Center for Nanosciences
Center : Amrita Center for Nanosciences and Molecular Medicine Move, Nanosciences
Department : Nanosciences
Year : 2015
Abstract : Nanosurface engineering of metallic substrates for improved cellular response is a persistent theme in biomaterials research. The need to improve the long term prognosis of commercially available stents has led us to adopt a ‘polymer-free’ approach which is cost effective and industrially scalable. In this study, 316L stainless steel substrates were surface modified by hydrothermal treatment in alkaline pH, with and without the addition of a chromium precursor, to generate a well adherent uniform nanotopography. The modified surfaces showed improved hemocompatibility and augmented endothelialization, while hindering the proliferation of smooth muscle cells. Moreover, they also exhibited superior material properties like corrosion resistance, surface integrity and reduced metal ion leaching. The combination of improved corrosion resistance and selective vascular cell viability provided by nanomodification can be successfully utilized to offer a cell-friendly solution to the inherent limitations pertinent to bare metallic stents.
Cite this Research Publication : M. C.C, A.M., C., A, P., ,, Shantikumar V Nair, K, C., and Dr. Deepthy Menon, “Nanotextured Stainless Steel for Improved Corrosion Resistance and Biological Response in Coronary Stenting”, Nanoscale, vol. 7, no. 2, pp. 832-841, 2015.