New technique could dramatically lower costs of DNA sequencing

December 13, 2007 | Source: PhysOrg.com

Using computer simulations, researchers at the University of Illinois have demonstrated a strategy for sequencing DNA by driving the molecule back and forth through a nanopore capacitor in a semiconductor chip.

Physics professor Aleksei Aksimentiev described the strategy: “Through molecular dynamics simulations, we demonstrate that back-and-forth motion of a DNA molecule in a nanopore capacitor 1 nanometer in diameter produces an electrostatic fingerprint that can be used to read the genetic sequence.”