Nanomaterials as signal amplification elements in DNA-based electrochemical sensing

Signal amplification strategies have attracted considerable attention due to the growing demands for ultrasensitive bioassays. Here, we summarize the latest developments in the application of nanomaterials as signal amplification elements in ultrasensitive DNA-based electrochemical detection. Various nanomaterials with different signal amplification routes have been reviewed briefly. (C) 2014 Elsevier Ltd. All rights reserved.