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|Title:||Plasma-induced graft polymerization of poly (ethylene glycol) methyl ether methacrylate on poly (tetrafluoroethylene) films for reduction in protein adsorption|
Atomic force microscopy
|Citation:||Zou, X.P., Kang, E.T., Neoh, K.G. (2002-01-15). Plasma-induced graft polymerization of poly (ethylene glycol) methyl ether methacrylate on poly (tetrafluoroethylene) films for reduction in protein adsorption. Surface and Coatings Technology 149 (2-3) : 119-128. ScholarBank@NUS Repository. https://doi.org/10.1016/S0257-8972(01)01490-6|
|Abstract:||Argon plasma-induced graft polymerization of poly(ethylene glycol) methyl ether methacrylate (PEGMA) on H2 plasma-pretreated poly(tetrafluoroethylene) (PTFE) films was carried out to render the PTFE surfaces hydrophilic and protein-repellent. The surface microstructure and composition of the PEGMA graft-polymerized PTFE surfaces from plasma induction were characterized by water contact angle, X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR) and atomic force microscopy (AFM) measurements. The extent of cross-linking in the plasma-polymerized PEGMA (pp-PEGMA) was estimated by gel fraction determination. In general, an appropriate RF power of approximately 15 W and glow discharge time of 60 s for polymerization produced a high graft yield of pp-PEGMA on the H2 plasma-pretreated PTFE surface (the pp-PEGMA-g-PTFE surface). The hydrophilicity of the PTFE surfaces was greatly enhanced by the presence of pp-PEGMA. The PTFE surface with a high density of the grafted pp-PEGMA was very effective in preventing bovine serum albumin (BSA) protein adsorption. © 2002 Elsevier Science B.V. All rights reserved.|
|Source Title:||Surface and Coatings Technology|
|Appears in Collections:||Staff Publications|
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