Blurry bands in gels?

This is a brilliant and simple fix to the problem of blurry bands we generally see in electrophoresis phosphorimager cassette images. The method uses foam-core which may be purchased inexpensively at an art supply store.  It produces higher resolution bands.  

http://rnajournal.cshlp.org/content/early/2016/10/19/rna.059303.116.full.pdf+html  

Thunderous applause to the team at Penn State.