Method of electrically exciting labeled molecules and insulating film coated electrode

The present invention relates to a method of electrically exciting a labeling molecule and an insulating film coated electrode, the method comprising: at least partially immersing the electrode in anelectrolyte solution containing at least one labeling molecule; exciting a marker molecule by an electrical pulse from the electrode, thereby producing an excited marker; and detecting light emissionemitted by the excited indicia, wherein the electrode comprises a p-type semiconductor material, at least the portion of the electrode immersed in the solution is substantially covered with an electrically insulating film comprising the p-type semiconductor material, the band gap of the electrically insulating film is equal to or greater than 5 eV, the electrically insulating film is covered witha shielding layer comprising an organic polymer material, thereby providing a basis for reproducible analytical applications in bioaffinity assays. 本发明涉及电激发标记分子的方法和绝缘膜涂覆的电极，所述方法包括：至少部分地将电极浸入含有至少一种标记分子的电解质溶液中；通过来自所述电极的电脉冲激发标记分子，