| RRC ID |
43259
|
| 著者 |
Sugiura S, Edahiro J, Sumaru K, Kanamori T.
|
| タイトル |
Surface modification of polydimethylsiloxane with photo-grafted poly(ethylene glycol) for micropatterned protein adsorption and cell adhesion.
|
| ジャーナル |
Colloids Surf B Biointerfaces
|
| Abstract |
In this study, we applied photo-induced graft polymerization to micropatterned surface modification of polydimethylsiloxane (PDMS) with poly(ethylene glycol). Two types of monomers, polyethylene glycol monoacrylate (PEGMA) and polyethylene glycol diacrylate (PEGDA), were tested for surface modification of PDMS. Changes in the surface hydrophilicity and surface element composition were characterized by contact angle measurement and electron spectroscopy for chemical analysis. The PEGMA-grafted PDMS surfaces gradually lost their hydrophilicity within two weeks. In contrast, the PEGDA-grafted PDMS surface maintained stable hydrophilic characteristics for more than two months. Micropatterned protein adsorption and micropatterned cell adhesion were successfully demonstrated using PEGDA-micropatterned PDMS surfaces, which were prepared by photo-induced graft polymerization using photomasks. The PEGDA-grafted PDMS exhibited useful characteristics for microfluidic devices (e.g. hydrophilicity, low protein adsorption, and low cell attachment). The technique presented in this study will be useful for surface modification of various research tools and devices.
|
| 巻・号 |
63(2)
|
| ページ |
301-5
|
| 公開日 |
2008-6-1
|
| DOI |
10.1016/j.colsurfb.2007.12.013
|
| PII |
S0927-7765(07)00488-2
|
| PMID |
18242961
|
| MeSH |
Adsorption
Cell Adhesion*
Cell Line
Dimethylpolysiloxanes / chemistry*
Humans
Photochemistry
Polyethylene Glycols / chemistry*
Proteins / chemistry*
Surface Properties
|
| IF |
4.389
|
| 引用数 |
72
|
|
WOS 分野
|
BIOPHYSICS
CHEMISTRY, PHYSICAL
MATERIALS SCIENCE, BIOMATERIALS
|
| リソース情報 |
| ヒト・動物細胞 |
Hep G2 |
