Electrochemical and biological performance of hierarchical platinum-iridium electrodes structured by a femtosecond laser

HIGHLIGHTS

• who: Linze Li from the The study overview and experimental schedule are illustrated in Fig1. Sprague-Dawley rats aged, ~, weeks were randomly assigned to the smooth Pt-Ir (sPt-Ir) and hierarchical Pt-Ir (hPt-Ir) groups (Table, ). In each group, rats were equally distributed to , implantation durations:, and , weeks. Each rat was implanted with , electrode. Electrochemical testing and surface characterization were performed before and after implantation, and histological sections were analyzed at every implantation endpoint. The procedure was approved by the Institutional Animal Care and Use Committee of Tsinghua University and followed the requirements for animal . . .
  

   

  

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