APP NOTE: Compare Compensation Pressure Accuracy

Chiara Cianciolo Cosentino, at the University of Pittsburgh, describes how she uses intravenous microinjections of zebrafish larvae to study acute kidney injury in this JoVE video. You can watch this video on JoVE. WPI equipment shown in this video includes:

Researchers at the University of Michigan are using WPI's PV820 for injecting a morpholino solution into the lumen of the otic vesicle of 1-day old zebrafish embryos.  Then, they use electroporation to introduce mif and mif-like morpholinos into the developing inner ear tissues.

When it comes to setting up microinjection systems, the options appear endless. The pictures below give some broad suggestions on how you might set up your own system. Keep in mind that many parts are interchangeable depending on your needs or preferences.

Microinjection is the process of transferring genetic materials into a living cell using glass micropipettes or metal microinjection needles. Glass micropipettes can be of various sizes with tip diameters ranging from 0.1 to 10 µm. DNA or RNA is injected directly into the cell’s nucleus. Microinjection has been successfully used with large frog eggs, mammalian cells, mammalian embryos, plants and tissues. Microinjection has been expensive, can be a slow process and requires skilled personnel, but new technologies are making it even more reliable, repeatable and affordable.

The UltraMicroPump3 is a versatile microinjection syringe pump designed to support the needs of a busy lab. The UMP3 Microinjector is suitable for delivery of media from nanoliters to milliliters. the UMP3 injecotor’s user interface and system design enables delivery of highly accurate and repeatable injections. The choice for thousands of scientists, it is widely cited in research papers.