Abstract: This invention is directed to an article, such as a medical device, for local delivery of genes. The article comprises a substrate coated with a cross-linked protein. The invention is also directed to a method for coating an article with cross-linked protein. An additive may be optionally incorporated into the coating. The crosslinked protein coating can strongly absorb genes. Thus, the coated article can be used to locally deliver genes to a target site. The coating of the invention exhibits excellent biocompatibility and biodegradability, and does not cause toxicity or side-effects.