Having object edges glow

Hey guys,
does anyone know how to go about making the edges of objects glow like they do in this picture…?
http://www.whatsnextnetwork.com/technology/media/dna_01.jpg

if someone can point me in the right direction, it would be much appreciated.

Thanks.

I would use VenomGFX 's fallof tutorial to get the ramps like they show, then use either nodes or the sequencer plugin to get a glow going. I can’t find it now, but Rambobaby had a blend file up showing how to use the nodes to make an object glow in the composite nodes.