Electrochemical immunosensors, which combine electrochemical technology with immunoassay, are well suitable for aiding in the diagnosis of cancer disease duo to their high target specificity, rapid detection, inexpensive fabrication and operation. During recent years, the research of design and fabrication of electrochemical immunosensor continues to remain a vibrant area of research and shows no signs of slowing down, and mainly focuses on the sensitivity enhancement and signal amplification. Indeed, thank...