Polyethylene oxide (PEO), widely used in the biomedical field because of its anti‐fouling properties, has been deposited by spin coating and stabilized by modifying its molecular structure through ion‐beam treatments (IBT). The polymer films were exposed to different gas mixtures in order to observe the changes related to physical (Ar), soft chemical (Ar/N 2 ) and strong chemical (Ar/O 2 ) modification. The surfaces of the polymers were characterized after different modification times. The film composition analysis has been performed by correlating Fourier transform‐infrared spectra and x‐ray photoemission spectra. The characterization has been completed with a morphological evaluation by atomic force microscopy. Contact angle measurements were used to show the efficiency of the stabilizing treatment. By using physical masking during IBT, culturing bovine serum albumin and analysing the surface by time‐of‐flight secondary ion mass spectrometry, it has been shown that ion beam treatments are an effective way to produce PEO films that retain their anti‐fouling properties.
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Manso‐Silván et al. (2004) studied this question.
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