Construction of controllable polyethylene glycol bioactive coating with hemocompatibility from the surface of modified glass substrate / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 260-266, 2019.
Artigo
em Chinês
| WPRIM
| ID: wpr-774212
ABSTRACT
A diblock copolymer, poly(ethylene glycol) methacrylate-block-glycidyl methacrylate (PEGMA-GMA), was prepared on glass substrate by surface-initiated atom transfer radical polymerization (SI-ATRP), and endothelial specific peptide Arg-Glu-Asp-Val (REDV) was immobilized at the end of the PEGMA-GMA polymer brush by ring opening reaction through the rich epoxy groups in the GMA. The structure and hydrophilicity of the polymer brushes were characterized by static water contact angle, X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). The results showed that the REDV modified copolymer brushes were successfully constructed on the glass substrates. The REDV peptide immobilized onto surface was quantitatively characterized by ultraviolet-visible spectroscopy (UV-VIS). The blood compatibility of the coating was characterized by recalcification time and platelet adhesion assay. The results showed that the polymer coating had good blood compatibility. The multifunctional active polymer coating with PEGMA and peptide produced an excellent prospect in surface construction with endothelial cells selectivity.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Oligopeptídeos
/
Polietilenoglicóis
/
Polímeros
/
Propriedades de Superfície
/
Materiais Biocompatíveis
/
Células Cultivadas
/
Adesividade Plaquetária
/
Células Endoteliais
/
Proteínas Imobilizadas
/
Vidro
Limite:
Humanos
Idioma:
Chinês
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2019
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS