Corrosion Behavior of Biocompatible Stainless Steels in Physiological Medium for Non‐invasive Diagnosis of Small Fiber Neuropathies Applications |
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| Authors: | Amandine Calmet Abdelilah Amar Sophie Griveau Virginie Lair Eliane Sutter Francisco Javier Recio Philippe Brunswick Fethi Bedioui Michel Cassir |
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| Affiliation: | 1. PSL Research University, Chimie Paristech‐CNRS, Institut de Recherche de Chimie de Paris, 11 rue Pierre et Marie Curie, F‐75231 Paris Cedex 05, France;2. PSL Research University, Chimie ParisTech, Unité de Technologies Chimiques et Biologiques pour la Santé, 75005 Paris, France;3. INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (n° 1022), 75005 Paris, France;4. CNRS, Unité de Technologies Chimiques et Biologiques pour la santé UMR 8258, 75005 Paris, France;5. Université Paris Descartes, Sorbonne Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé, 75005 Paris, France;6. Sorbonne Universités, UPMC Univ Paris 06, UMR 8235, Laboratoire Interfaces et Systèmes Electrochimiques, 75005, Paris, France;7. CNRS, UMR 8235, LISE, 75005, Paris, France;8. Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Av. Vic?na Mackena 4860, Macul, Santiago de Chile,Chile;9. Centro de Nanotecnología y Materiales Avanzados, CIEN‐UC, Pontificia Universidad Católica de Chile, Chile;10. Departamento de Química de los Materiales, Facultad de Química y Biologia, Universidad de Santiago de Chile, Chile;11. IMPETO Medical, 17 rue Campagne Première, F‐75014 Paris, France |
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| Abstract: | A non‐invasive device based on measurements of electrochemical skin conductance can detect small fiber neuropathy, a sweat gland dysfunction implicated in several diseases. The measurement is related to sweat composition and notably to chloride concentration. To optimize the electrode material, in vitro experiments are performed in mimetic sweat solutions. This work reports on the resistance to pitting corrosion of biocompatible stainless steels (AISI 304L, AISI 430, AISI 430T, D2205) in sweat mimicking electrolyte at pH 7 with variable chloride concentration, to determine the most sensitive material to sweat composition. AISI 430 is promising due to its high sensitivity to chloride concentration variations. |
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| Keywords: | Corrosion Biocompatible Stainless Steels Simulated Sweat Neuropathies Detection. |
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