Abstract
Electrohydrodynamic spraying has been used to produce patterns of line width up to 100 lm in size on glass discs, using nanohydroxyapatite (nHA). A human osteoblast (HOB)-like cell model was then used to study the interaction between the HOB cells and nHA patterns in vitro. Growth of the cells was significantly increased (p < 0.05) on the nHA surfaces. In addition, HOBs attached and spread well, secreting extracellular matrix. It was found that a confluent, aligned cell layer was achieved on nHA patterns by day 9. Immunofluorescent staining indicated that these cells showed elongated nuclei, enhanced adhesion (vinculin adhesion plaques) and a well-aligned cytoskeleton (actin stress fibres). This work suggests that this type of spraying may provide a route for the production of nanoscale features on implants for biomedical applications.
| Original language | English |
|---|---|
| Pages (from-to) | 188-194 |
| Number of pages | 7 |
| Journal | Journal of Biomedical Materials Research Part A |
| Volume | 85A |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2008 |