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Plasma nitriding under low temperature improves the endothelial cell biocompatibility of 316L stainless steel

2019; Springer Science+Business Media; Volume: 41; Issue: 4-5 Linguagem: Inglês

10.1007/s10529-019-02657-7

1573-6776

Janine Karla França da Silva Braz, Gabriel Moura Martins, Vladimir Galdino Sabino, Jussier de Oliveira Vitoriano, Carlos Augusto Galvão Barboza, Ana Katarina Menezes Cruz Soares, Hugo Alexandre Oliveira Rocha, Moacir Franco de Oliveira, Clodomiro Alves, Carlos Eduardo Bezerra de Moura,

High Entropy Alloys Studies

To evaluate the effects of the surface modification of 316L stainless steel (SS) by low-temperature plasma nitriding on endothelial cells for stent applications. X-ray diffraction (XRD) confirmed the incorporation of nitrogen into the treated steel. The surface treatment significantly increased SS roughness and hydrophilic characteristics. After 4 h the cells adhered to the nitride surfaces and formed clusters. During the 24 h incubation period, cell viability on the nitrided surface was higher compared to the polished surface. Nitriding reduced late apoptosis of rabbit aorta endothelial cell (RAEC) on the SS surface. Low temperature plasma nitriding improved the biocompatible of stainless steel for use in stents.