Grade-1 titanium soaked in a DMEM solution at 37°C
Autor: | A. Cuneyt Tas |
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Rok vydání: | 2014 |
Předmět: |
Materials science
Biocompatibility Cryptocrystalline Surface Properties Sodium Inorganic chemistry chemistry.chemical_element Bioengineering Calcium Biomaterials chemistry.chemical_compound Sodium pyruvate Spectroscopy Fourier Transform Infrared Fourier transform infrared spectroscopy Titanium Phenol red Photoelectron Spectroscopy Temperature Spectrometry X-Ray Emission Culture Media Solutions chemistry Mechanics of Materials Microscopy Electron Scanning sense organs |
Zdroj: | Materials Science and Engineering: C. 36:84-94 |
ISSN: | 0928-4931 |
DOI: | 10.1016/j.msec.2013.11.045 |
Popis: | DMEM (Dulbecco's modified Eagle medium) solutions are used in performing in vitro cell culture experiments to assess the cell biocompatibility of synthetic biomaterials. In this study, Hepes-buffered, phenol red- and sodium pyruvate-free DMEM solutions were used, for the first time as immersion media at 37°C, to test alkali-treated (5M NaOH, 60°C, 24h) grade-1 titanium substrates. Such DMEM solutions were found to deposit X-ray-amorphous calcium phosphate (ACP), in one or two weeks, on the soaked grade-1 Ti substrates. A limited number of previous studies focusing on the biomimetic coating of alkali-treated Ti6Al4V coupons in DMEM have actually used different DMEM solutions, which were not Hepes-buffered and containing phenol red and sodium pyruvate. The previous studies with such DMEM solutions reported the deposition of cryptocrystalline apatitic calcium phosphate (Ap-CaP) on Ti6Al4V substrates, but not ACP. An inorganic solution (free of amino acids, vitamins, glucose, sodium pyruvate and phenol red), simulating the ion concentrations of the DMEM solutions, was also used for the first time in depositing ACP on grade-1 Ti substrates upon soaking at 37°C for only 24h. The solutions and deposits of this study were analyzed by AAS, ICP-AES, FTIR, XRD, XPS, and surface profilometry. |
Databáze: | OpenAIRE |
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