Abstract: Combinations of a carrier and a complex consisting of a nucleic acid molecule and a copolymer are described, wherein the copolymer consists of an amphiphilic polymer, preferably polyethylene glycol, and a charged effector molecule, in particular a peptide or peptide derivative, as well as their use for the transfer of nucleic acid molecules into cells.

Abstract: The invention relates to a mechanical digging device (1) with a handle-like support (2), comprising a digging part (4) near its bottom end (3) and two grip arms (6) on its upper end (5), a support part (7) embodied on the bottom end (3) of said support (2) and a rotating device mounted on the support (2) and connected to the digging part (4) for laterally tilting the material on the digging part (4). According to the invention, the rotating device (9) penetrates the support (2) and the longitudinal axis (11) of the rotating device (9) extends parallel to the longitudinal axis of the digging part (4).

Abstract: Combinations of a carrier and a complex consisting of a nucleic acid molecule and a copolymer are described, wherein the copolymer consists of an amphiphilic polymer, preferably polyethylene glycol, and a charged effector molecule, in particular a peptide or peptide derivative, as well as their use for the transfer of nucleic acid molecules into cells.

Abstract: A method for producing a drill assistance device for a tooth implant includes the process steps of, initially the taking of an x-ray picture of the jaw and the compilation of a corresponding measured data record; then a three-dimensional, optical measurement of the visible surfaces of the jaw and of the teeth and the compilation of a corresponding measured data record. The measured data records from the x-ray picture and the measured data records from the three-dimensional, optical image are correlated with each other. Based on the information that is now available the type and position of the implant relative to the adjacent teeth is planned and a drill template is produced which is attached to the neighboring teeth, thus making the exact drilling of the implant pilot hole possible.