AI Article Synopsis
- There is increasing interest in materials with improved compatibility for blood and cells, leading to the evaluation of modified polyetheretherketone (PEEK-WC) membranes.
- The performance of these membranes was assessed through various experiments measuring wettability, protein affinity, and surface energy equations.
- Results indicated that PEEK-WC membranes showed less protein adsorption compared to commercial membranes, suggesting their potential for biomedical applications due to their unique physico-chemical properties.
Article Abstract
There has been growing interest in innovative materials with specific physico-chemical properties that provide an improved blood/cell compatibility. In this paper we evaluated the performance of new membranes prepared from a modified polyetheretherketone (PEEK-WC) contacting human plasma proteins. These membranes were prepared by using the phase inversion technique. Membrane wettability and affinity to proteins were evaluated by means of contact angle experiments, roughness measurements, and quantitative UV analysis. The energy parameters of membrane surfaces were determined according to Good, van Oss and Chaudhury's theory. The extent of human albumin, fibrinogen and immunoglobulin G adsorption was related to quantitative expressions of the membrane surface hydrophilicity: the base parameter of surface free energy and the free energy of interfacial interaction. The performance of PEEK-WC membranes was compared to that of commercial membranes, which conventionally are used in biomedical applications. The experimental results showed a reduction of protein adsorption on PEEK-WC membranes with respect to other commercial membranes. The low protein affinity of PEEK-WC membranes is due to the intrinsic physico-chemical characteristics of the polymeric material which makes these membranes interesting for potential use in biomedical applications.
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| http://dx.doi.org/10.1023/B:JMSM.0000036275.60508.50 | DOI Listing |
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