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Establishing chemical bond layer of poly(ethylene glycol) on NiTi alloy surface

  • Beihang University
  • Beijing key laboratory for radiation novel materials

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

Abstract

To get bioorganic surface with improving biological properties, NiTi shape memory alloy was bonded poly (ethylene glycol) (PEG) by sequentially piranha solution treating, silanizing, and then γ-ray irradiation induced grafting. Piranha solution treating gave hydroxylated surfaces for the benefit of next silanization. The trichlorovinylsilane (TCVS) was performed as a bridge to covalent bond treated NiTi substrates and PEG by γ-irradiation. X-ray photoelectron spectroscopy (XPS) was used to indicate that PEG was bonded on silanized NiTi surface by irradiation. Osteoblast culture of 1 day and methyl-thiazol-tetrazolium (MTT) assay showed that PEG bonded on NiTi surface enhanced cell proliferation and cell amount increased significantly with increasing the concentration of bonded PEG.

Original languageEnglish
Title of host publicationCurrent Trends in the Development of Industry
Pages578-581
Number of pages4
DOIs
StatePublished - 2013
Event3rd International Conference on Chemical Engineering and Advanced Materials, CEAM 2013 - Guangzhou, China
Duration: 6 Jul 20137 Jul 2013

Publication series

NameAdvanced Materials Research
Volume785-786
ISSN (Print)1022-6680

Conference

Conference3rd International Conference on Chemical Engineering and Advanced Materials, CEAM 2013
Country/TerritoryChina
CityGuangzhou
Period6/07/137/07/13

Keywords

  • Biomaterials
  • Irradiation induced grafting
  • NiTi shape memory alloy
  • Organic films
  • Surface modification

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