When it comes to gene delivery, you can't beat viruses - after all, they've had millions of years to perfect their art. But liposomal techniques, simpler and cheaper than viral methods, are catching up fast. Carlsbad, Calif.-based Invitrogen has introduced new reagents designed to improve the scope and effectiveness of liposomal transfection, including the next generation of the company's best seller, the Lipofectamine 2000 reagent.












