DNA-modified electrodes. Part 6. A new method for the determination of binding constants and binding site sizes

DNA Electrochemical Behaviors, Recognition and Sensing by Combining with PCR Technique

“…Up to now, carbon materials including carbon paste, graphite, glassy carbon, carbon fiber, carbon nanotube and screen-printed electrodes been widely used for the nucleic acid research and electrochemical detection due to their several advantages such as easy handle, renewable, cheap, convenient and disposable in coming commercial uses . Various metals or metal oxides such as gold [77][78][79][80][81][82][83][84][85][86][87][88][89][90][91][92][93][94][95][96], platinum [97,98], silver [99][100][101] and indium tin oxide [102,103] etc have also been used in this filed.…”

Electrochemical impedance behavior of DNA biosensor based on colloidal Ag and bilayer two-dimensional sol–gel as matrices

“…Immobilization of DNA probes on a solid surface is an important initial step for the preparation of a DNA biosensor. Various methods are available for immobilizing DNA on a gold electrode, include biotin-streptavidin interaction [4], direct adsorption [5][6][7][8][9][10] and self-assembly of thiolcapped DNA [11][12][13][14][15][16]. To a large extent, the selectivity, sensitivity and reproducibility of a DNA recognition interface will depend on the immobilization of the DNA probe strands.…”