Gene Delivery by Direct Injection (Microinjection) Using a Controlled-Flow System Protocol This protocol describes a method for constant-flow microinjection using the Pneumatic PicoPump (World Precision Instruments). This type of system is very simple and can be assembled on a relatively low budget. In this method, a constant flow of sample is delivered from the tip of the pipette, and the amount of sample injected into the cell is determined by how long the pipette remains in the cell.
Gene Delivery by Direct Injection (Microinjection) Using a Pulsed-Flow System Protocol This protocol describes a method for pulsed-flow microinjection using the Eppendorf FemtoJet injector and Eppendorf InjectMan; this is the most common type of pulsed-flow microinjection system currently being used. The advantage of this type of system over a controlled-flow system is that much more control is available over the injection parameters, reducing variability in injections. In addition, the system allows a diagonal insertion of the needle into the cell.
Microinjection of dsRNA into Drosophila Embryos Protocol This protocol provides a description of how to introduce double-stranded RNA (dsRNA) into Drosophila embryos by microinjection. Several days of preparation are required before injections into Drosophila embryos begin. Flies must be in abundant supply for egg collection. Bombardment of embryos with dsRNA-coated gold particles (Delivery of dsRNA into Drosophila Embryos by a Gene Gun) can be used as an alternative.
Microinjection of Mouse ES Cells into Blastocysts The core defines one injection as a total of forty blastocysts injected on two consecutive days using one or two clones for the same mutation. Please, refer to the Pricing page for information on the cost of one injection.
