Electronic label-free DNA and genome sequencing

A method of manufacturing a device for DNA or genome sequencing, said method comprising:

• disposing a pair of electrodes on a substrate, wherein each of the electrodes in the pair are separated by a nanogap;
• depositing a resist layer over the pair of electrodes;
• patterning the resist layer to create an exposed region on each electrode at or near the nanogap;
• increasing a surface area of the exposed region on each electrode and introducing a biomolecule to the exposed regions, wherein the biomolecule has at least first and second ends, with each end comprising a functionalization for immobilizing the biomolecule to the pair of electrodes,
• wherein the biomolecule bridges the nanogap, with the first and second ends of the biomolecule being bound to the exposed regions.