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Plasma-Induced Graft Polymerization of Poly(ethylene glycol) Methyl Ether Methacrylate on Si(100) Surfaces for Reduction in Protein Adsorption and Platelet Adhesion

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Plasmas and Polymers

Abstract

Argon plasma-induced graft polymerization of a solution-coated macromonomer, poly(ethylene glycol) methyl ether methacrylate (PEGMA), on the Si(100) surface was carried out to impart anti-fouling properties to the Si(100) surface. The surface composition and microstructure of the PEGMA graft-polymerized Si(100) surfaces were characterized by X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR), and atomic force microscopy (AFM) measurements. The extent of crosslinking in the plasma-graft polymerized PEGMA (pp-PEGMA) was estimated by gel fraction determination. In general, an appropriate RF power of about 15 W and a PEGMA macromonomer concentration of about 1 wt% in the coating solution for plasma polymerization produced a high graft yield of pp-PEGMA on the Si(100) surface (the pp-PEGMA-g-Si surface). The Si(100) surface with a high concentration of the grafted pp-PEGMA was effective in preventing bovine serum albumin (BSA) adsorption and platelet adhesion.

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Authors and Affiliations

  1. Department of Chemical Engineering, National University of Singapore, Kent Ridge, Singapore, 119260

    X. P. Zou, E. T. Kang & K. G. Neoh

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  1. X. P. Zou
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  2. E. T. Kang
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Zou, X.P., Kang, E.T. & Neoh, K.G. Plasma-Induced Graft Polymerization of Poly(ethylene glycol) Methyl Ether Methacrylate on Si(100) Surfaces for Reduction in Protein Adsorption and Platelet Adhesion. Plasmas and Polymers 7, 151–170 (2002). https://doi.org/10.1023/A:1016243403102

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