Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
692685 | Progress in Organic Coatings | 2012 | 6 Pages |
Abstract
This work presents a study on the possibility of obtaining hydroxyapatite thin layers on porous polyurethane support using a modified coating method, which is based on a biomimetic technique. To investigate bone-like apatite coatings formation on polyurethane surface, two types of solutions such as supersaturated calcification solution (SCS) and modified SCS (M-SCS) were used. The modified supersaturated calcification solution was prepared with added at original SCS appropriate quantities of vitamin A and vitamin D2. The hydroxyapatite deposits are investigated by scanning electron microscopy (SEM) coupled with energy dispersive X-ray analysis (EDX) and ATR-IR spectroscopy. The presence of vitamins (A and D2) in M-SCS solution favours the formation of hydroxyapatite layer on polymeric substrate. The results obtained from SEM images have showed that porous polyurethane/hydroxyapatite scaffolds with estimated porosity of over 60% in an interconnected network, were produced under vitamins influence.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Gabriela Ciobanu, Simona Ilisei, Constantin Luca, Gabriela Carja, Octavian Ciobanu,