The Impacts of Crystalline Structure and Different Surface Functional Groups on Drug Release and the Osseointegration Process of Nanostructured TiO2.
Anna PawlikMagdalena JaroszRobert P SochaGrzegorz Dariusz SulkaPublished in: Molecules (Basel, Switzerland) (2021)
In implantable materials, surface topography and chemistry are the most important in the effective osseointegration and interaction with drug molecules. Therefore, structural and surface modifications of nanostructured titanium dioxide (TiO2) layers are reported in the present work. In particular, the modification of annealed TiO2 samples with -OH groups and silane derivatives, confirmed by X-ray photoelectron spectroscopy, is shown. Moreover, the ibuprofen release process was studied regarding the desorption-desorption-diffusion (DDD) kinetic model. The results proved that the most significant impact on the release profile is annealing, and further surface modifications did not change its kinetics. Additionally, the cell adhesion and proliferation were examined based on the MTS test and immunofluorescent staining. The obtained data showed that the proposed changes in the surface chemistry enhance the samples' hydrophilicity. Moreover, improvements in the adhesion and proliferation of the MG-63 cells were observed.
Keyphrases
- drug release
- cell adhesion
- signaling pathway
- quantum dots
- induced apoptosis
- high resolution
- drug delivery
- magnetic resonance imaging
- machine learning
- electronic health record
- computed tomography
- big data
- oxidative stress
- visible light
- mass spectrometry
- room temperature
- magnetic resonance
- pi k akt
- adverse drug
- data analysis