ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Polyethylene (PE) substrates were irradiated at a dose of 1×1015 ions·cm−2 by thesimultaneous use of oxygen (O2) cluster and monomer ion beams. The acceleration voltage for theion beams was 7 kV. Unirradiated and irradiated PE substrates were soaked in simulated body fluidwith ion concentrations 1.5 times of those of human blood plasma (1.5SBF) for 7 days. The irradiatedPE substrate formed apatite on its surface, whereas unirradiated one did not form it. This is attributedto the formation of functional groups effective for apatite nucleation, such as COOH groups, on thesubstrate surface by the simultaneous use of O2 cluster and monomer ion beams. In addition, theapatite-forming ability of the irradiated substrate was improved by the subsequent CaCl2 treatment.This suggests that Ca2+ ions present on the substrate surface accelerated the apatite deposition. Wecan conclude that apatite-forming ability can be induced on surface of polyethylene by thesimultaneous use of O2 cluster and monomer ion beams
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.111.pdf
