Abstract
Electrically conductive materials can stimulate stem cells through electric shock and thereby contribute to the regulation of cell proliferation and differentiation. Recently, polymer-metal complexes composed of polyaniline and gold nanoparticles have emerged as novel candidates for use in regenerative medicine. By mixing two different materials, such composites maximize the benefits while alleviating the disadvantages of using either material alone. Based on their excellent conductivity, these complexes can be applied to nerve regeneration using stem cells. In this study, we investigated a method for producing hybrid nanocomposites by complexing gold nanoparticles to polyaniline and tested the resultant composites in a model of nerve regeneration. We manipulated the shape, size, and electrical conductivity of the hybrid composites by compounding the component materials at various ratios. The most efficient nanocomposite was named conductive reinforced nanocomposites (CRNc's). When the CRNc was delivered directly to cells, no cytotoxicity was observed. After the intracellular delivery of the CRNc, the stem cells were electrically stimulated using an electroporator. As a result of performing mRNA-sequencing (Seq) analysis after ...Continue Reading
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