One or more of the Company's three technology platforms allow Selective Genetics to achieve higher gene transfer and expression at the site of tissue repair than other forms of gene transfer:

1. Physical gene targeting, particularly in tissue repair and regeneration sites, is achieved through the use of gene activated matrices;
2. Specific, high-affinity gene targeting at a molecular level is achieved via fibroblast growth factor ligands;
3. Mechanical targeting is achieved through DNA-containing coatings on medical devices