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Published on: October 26, 2015
Functionalized titanium oxide surfaces with phosphated carboxymethyl cellulose: characterization and bonelike cell
Daniela Pasqui1, Antonella Rossi, Federica Di Cintio
1C.R.I.SMA and Department of Chemical and Biosystems Sciences and Technologies and Department of Neuroscience, University of Siena, Via A. Moro 2, 53100 Siena, Italy.
Biomacromolecules
|November 21, 2007
Summary
A novel phosphated carboxymethylcellulose coating on titanium oxide surfaces significantly enhances osteoblast adhesion and proliferation. This biomaterial modification shows promise for improving dental and orthopedic implant osseointegration.
Area of Science:
- Biomaterials Science
- Surface Chemistry
- Cell Biology
Background:
- Implant success relies on surface properties like topography and chemistry.
- Titanium oxide (TiO2) is a common implant material.
- Improving osseointegration is crucial for implant performance.
Purpose of the Study:
- To synthesize and apply a phosphated carboxymethylcellulose (pCMC) coating to TiO2 surfaces.
- To evaluate the impact of pCMC coating on TiO2 surface properties.
- To assess the in vitro biological response of osteoblast-like cells to modified surfaces.
Main Methods:
- Synthesis of pCMC with one phosphate group per disaccharide unit.
- Functionalization of TiO2 surfaces with pCMC.
- Chemical characterization using X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR).
- Surface topography analysis via atomic force microscopy (AFM).
- In vitro cell culture studies with osteoblast-like cells.
Main Results:
- pCMC coating was successfully applied and characterized.
- Modified TiO2 surfaces showed altered topography and chemistry.
- Osteoblast-like cells exhibited enhanced adhesion and proliferation on pCMC-coated surfaces.
- Cells displayed a more spread, polygonal morphology on functionalized surfaces.
Conclusions:
- Phosphated carboxymethylcellulose coating positively modulates osteoblast response.
- The pCMC coating promotes osteoblast growth and adhesion.
- This surface modification strategy has the potential to improve biomaterial osseointegration for dental and orthopedic implants.
