Title
High-precision microinjection of microbeads into C. elegans trapped in a suction microchannel.
Abstract
This study presents the high-precision microinjection of fluorescent micro-gel beads into Caenorhabditis elegans trapped in a suction microchannel. In our previous works, we demonstrated survival microinjection by a conventional micromanipulation technique. However, the focal planes differed between the tip of the microinjection tool and the target axon inside the C. elegans body. To resolve this problem, we here propose a suction microchannel that traps C. elegans during the microinjection operation. The focal plane of the target nerve axon matches that of the fluorescent microbead in the microinjection tool, enabling high-precision microinjection into the interior of the C. elegans body under a microscopic view. In an experimental evaluation, the positioning accuracy of the injection into C. elegans was within the target accuracy (15 μm). The head-flrst navigation alignment of C. elegans along the microchannel was controlled by electrotaxis. Injection of the fluorescent micro-gel bead into the C. elegans body was quantitatively confirmed by confocal microscopy.
Year
DOI
Venue
2017
10.1109/ICRA.2017.7989422
ICRA
Field
DocType
Volume
Nanotechnology,Biophysics,Control theory,Microinjection,Caenorhabditis elegans,Axon,Microchannel,Microscopy,Engineering,Suction,Confocal microscopy
Conference
2017
Issue
Citations 
PageRank 
1
0
0.34
References 
Authors
2
8
Name
Order
Citations
PageRank
Masahiro Nakajima11516.33
Yuki Ayamura211.16
Masaru Takeuchi3918.01
Naoki Hisamoto493.76
Strahil Pastuhov511.16
Yasuhisa Hasegawa645694.62
Toshio Fukuda72723818.58
Qiang Huang826691.95