Adenoviral vector is the most efficient gene transfer vehicle developed to date. The vector can offer 100% transient transduction efficiency in most cell lines in vitro. Depending on cell dividing rate, transient gene expression in a particular target cell can last 7-10 days. The vector will not integrated into host cell genome, minimizing the possibility of host genome mutations associated with vector insertion. All our adenoviral vectors are based on human adenovirus type 5 and are prepared in higher titer format for immediate applications.