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Interaction of Plasma Polypyrrole Particles with Ionic Solutions

Authors

  • Lidia Ma. Gómez,

    1. Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Carr. México-Toluca, Km. 36.5. Ocoyoacac, Edo. Mex., CP 52750, México
    2. Posgrado en Ciencia de Materiales, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Tollocan y Paseo Colón, Toluca, Edo. Mex., CP 52000, México
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  • Ma. Guadalupe Olayo,

    Corresponding author
    1. Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Carr. México-Toluca, Km. 36.5. Ocoyoacac, Edo. Mex., CP 52750, México
    • Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Carr. México-Toluca, Km. 36.5. Ocoyoacac, Edo. Mex., CP 52750, México.
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  • Guillermo J. Cruz,

    1. Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Carr. México-Toluca, Km. 36.5. Ocoyoacac, Edo. Mex., CP 52750, México
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  • Maribel González-Torres,

    1. Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Carr. México-Toluca, Km. 36.5. Ocoyoacac, Edo. Mex., CP 52750, México
    2. Posgrado en Ciencia de Materiales, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Tollocan y Paseo Colón, Toluca, Edo. Mex., CP 52000, México
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  • Osvaldo G. López,

    1. Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Carr. México-Toluca, Km. 36.5. Ocoyoacac, Edo. Mex., CP 52750, México
    2. Posgrado en Ciencias Químicas, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Tollocan y Paseo Colón, Toluca, Edo. Mex., CP 52000, México
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  • Carlos De Jesús

    1. Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Carr. México-Toluca, Km. 36.5. Ocoyoacac, Edo. Mex., CP 52750, México
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Abstract

This work presents a study about the hydrophilicity and conductivity of plasma polypyrroles (PPy) in contact with solutions of salt concentration similar to human tissues. PPy is a conjugated biocompatible polymer in which the electronic distribution produces partial relocation in contact with different compounds. PPy and PPy doped with iodine (PPy/I) particles of different sizes are being studied as implants in the central nervous system to restore the lost neuronal communication after severe injuries. Particle size, hydrophilicity and conductivity of these polymers are essential in this task. In this work, plasma PPy and PPy/I were synthesized as thin films using low-pressure, rf, resistive, electrical glow discharges and grounded up to obtain microparticles in the range of neuronal nuclei. The electrical conductivity of particles was studied with the addition of human-like ionic solutions, particularly with sodium and potassium ions which are part in the ionic transference of electric charges in neuronal membranes.

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