What is this kind of material? I'm trying to recreate an image on 3D (As you can see on the picture) but the material doesn't ''shine'' on the borders like the original picture.
I was thinking on adding textures but this is for an animation, so maybe a better setup for a material could help more than just a plain texture (which is no problem, i have Zbrush software too)
What's the kind of material that i could use to get some kind of 'texture' or 'ilumination' like the original/real picture?

Or if you have any other idea, what can you recommend? I'm starting with cycles rendering...
The top image seems to be the rods and cones that line your retina. The image is likely from a scanning electron microscope, then manually colored. (SEM can't see color)

Fresnel is the easiest way to accomplish the effect.