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Small multicellular model organisms such as the invertebrate nematode C. elegans and the vertebrate zebrafish provide unique opportunities for both basic science and pharmaceutical discovery. In recent years, there have been significant breakthroughs in technologies to manipulate and image these organisms for a variety of purposes ranging from behavioral studies of neuronal circuits to high-throughput screening. Here, we review these advancements with a particular focus on the optically transparent model organisms C. elegans and zebrafish.
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Supplemental Figure 1. Automated zebrafish injection through microforce feedback control (127–129). The embryo is positioned in an agar mold, and the micropipette is advanced to its interior. Through measurement of the microforce needed to advance the syringe, the penetration of the chorion and the cellular membrane can be sensed and the depth of injection can be controlled.
References
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