Abstract
Previously, novel poly(ethylene glycol) (PEG) and sulfonated PEG acrylate (PEG-SO3A/OA) copolymers were prepared as coating and/or blending materials for biomedical applications. Surfaces modified with copolymers exhibited increased anti-coagulation properties and decreased plasma adsorption level due to increased hydrophilic properties and reorientation characteristics of PEG/PEG-SO3A chains in water phase. As continuation study, anti-complement effects of PEG-SO3/OA copolymers were investigated in vitro, and compared with those of low-density polyethylene (LDPE) and PEG/OA. C3 activation by PEG-SO3/OA samples was lower than that by PEG/OA samples, which was attributed to decreased surface nucleophile level of samples. PEG-SO3/OA samples increased inhibition of Bb production, resulting in decreased C5 activation. Owing to reduced activations of C3 and C5, PEG-SO3/OA samples markedly decreased SC5b-9 levels in plasma.
| Original language | English |
|---|---|
| Pages (from-to) | 141-146 |
| Number of pages | 6 |
| Journal | Colloids and Surfaces B: Biointerfaces |
| Volume | 50 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1 Jul 2006 |
Bibliographical note
Funding Information:This study was supported by a grant (10012112), Components and Materials Technology Development Program from the Ministry of Commerce, Industry and Energy, Republic of Korea.
Keywords
- Acrylate
- Alternative pathway
- Biomaterials
- Copolymerization
- Poly(ethylene glycol)
- Sulfonation complement activation
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