Abstract
The selective detection of cations is commonly required in a wide range of biomedical applications. We have fabricated a low-cost flexible polyimide multi-sensor platform that integrates K+ and Na+ ion sensitive microelectrodes (μISE) for biomedical applications in organic media. The platform is fabricated using rapid prototyping techniques based on KAPTON polymeric substrate. The novel multi-sensor exhibits a good behavior regarding the detection of different cations with a high selectivity, high sensitivity, low detection limit and fast response time. An electropolymerized polypyrrole film is used in order to achieve a good adhesion between the gold electrodes and the membrane.
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