Lotus-leaf-like structured heparin-conjugated poly(L-lactide-co-ε-caprolactone) as a blood compatible material
- Lotus-leaf-like structured heparin-conjugated poly(L-lactide-co-ε-caprolactone) as a blood compatible material
- 임진익; 김승일; 김수현
- Antithrombotic material; Heparin; Lotus-leaf-like structure; Blood vessel; Surface modification
- Issue Date
- Colloids and surfaces. B, Biointerfaces
- VOL 103, 463-467
- A heparin-conjugated biodegradable polymer was synthesized by direct coupling of heparin to poly(L-lactide-co-ɛ-caprolactone) (PLCL) and was manufactured into lotus-leaf-like structured films. We evaluated whether lotus-leaf-like structured heparin-conjugated PLCL (LH-PLCL) could be applied to blood vessel tissue engineering. Differences in the surface structures of the films with respect to hydrophobicity and the lotus effect as well as the antithrombotic efficiency in human whole blood were examined using scanning electron microscopy (SEM) and a contact angle meter. Recovery testing was conducted using a tensile strength testing machine, and quantitative analysis of conjugated heparin was performed using the toluidine blue colorimetric method. The concentration of conjugated heparin was 0.14 μg/mg H-PLCL, and the contact angle with the lotus-leaf-like surface was approximately 120°. Furthermore, the LH-PLCL film yielded a lower platelet adhesion rate (around less than 1.4%) in whole blood than that yielded by an untreated PLCL film. These results indicate a unique property of bound heparin and the lotus-leaf-like structure. This novel LH-PLCL polymer could be applied as a blood/tissue compatible biodegradable material for implantable medical devices and tissue engineering.
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.