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Title: Improve the corrosion and cytotoxic behavior of NiTi implants with use of the ion beam technologies

The corrosion resistance behavior and cytotoxicity of binary NiTi-base alloy specimens subjected to surface modification by silicon ion beams and the proliferative ability of mesenchymal stem cells (MSC) of rat marrow on an ion-implanted surface of the alloy have been studied. The silicon ion beam processing of specimen surfaces is shown to bring about a nearly two-fold improvement in the corrosion resistance of the material to attack by acqueous solutions of NaCl and human plasma and a drastic decrease in the nickel concentration after immersion of the specimens into the solutions for ∼3400 and ∼6000 h, respectively. It is found that MSC proliferation strongly depends on the surface structure, roughness and chemical condition of NiTi implants.
Authors:
;  [1] ;  [2] ; ;  [3]
  1. Institute of Strength Physics and Materials Science SB RAS, 2/4 Akademichesky Ave., Tomsk, 634021 (Russian Federation)
  2. (Russian Federation)
  3. Institute of Chemical Biology and Fundamental Medicine, Siberian Branch,Russian Academy of Sciences, Novosibirsk, 630090 (Russian Federation)
Publication Date:
OSTI Identifier:
22496159
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1688; Journal Issue: 1; Conference: NEWOT'2015: 5. international scientific conference on new operational technologies, Tomsk (Russian Federation), 29-30 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CONCENTRATION RATIO; CORROSION; CORROSION RESISTANCE; HUMAN POPULATIONS; IMPLANTS; ION BEAMS; ION IMPLANTATION; NICKEL; NICKEL ALLOYS; RATS; ROUGHNESS; SILICON IONS; SODIUM CHLORIDES; STEM CELLS; SURFACES; TITANIUM ALLOYS; TOXICITY