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 JoVE Bioengineering

Fabricating Complex Culture Substrates Using Robotic Microcontact Printing (R-µCP) and Sequential Nucleophilic Substitution

1Department of Biomedical Engineering, University of Wisconsin, Madison, 2Department of Mechanical Engineering, University of Wisconsin, Madison


JoVE 52186

Cell culture substrates functionalized with microscale patterns of biological ligands have immense utility in the field of tissue engineering. Here, we demonstrate the versatile and automated manufacture of tissue culture substrates with multiple, micropatterned poly(ethylene glycol) brushes presenting orthogonal chemistries that enable spatially precise and site-specific immobilization of biological ligands.

 JoVE Biology

Visualization of Caenorhabditis elegans Cuticular Structures Using the Lipophilic Vital Dye DiI

1Department of Molecular and Cellular Medicine, Texas A&M University System Health Science Center, College of Medicine


JoVE 3362

We present a method to visualize cuticle in live C. elegans using the red fluorescent lipophilic dye DiI (1,1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate), which is commonly used in C. elegans to visualize environmentally exposed neurons. With this optimized protocol, alae and annular cuticular structures are stained by DiI and observed using compound microscopy.

 JoVE Neuroscience

Intracellular Recording, Sensory Field Mapping, and Culturing Identified Neurons in the Leech, Hirudo medicinalis

1Department of Biology, University of Kentucky, 2Department of Biology, College of Science, University of Salahaddin, Iraq, 3Department of Neurobiology and Cognitive Neuroscience, SISSA, Italy


JoVE 50631

This article describes three nervous system preparations using leeches: intracellular recording from neurons in ventral ganglia, culturing neurons from ventral ganglia, and recording from a patch of innervated skin to map sensory fields.

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