The present provides methods and compositions that enable effective delivery of nucleic acids to desired cells, including to a solid organ such as a mammalian heart. A furnace having a feed nozzle with a lead screw drives the mixture from a feed hopper. The present invention also relates to a method for producing a dye-sensitized solar cell. This capability may permit the full-speed, bit-exact, testing, of both locally and remotely situated media encoders and decoders. An illustrative bat includes an elongate composite handle and an elongate barrel, each having opposite first and second ends.