Figure 2
From: Emerging Applications of Bacterial Spores in Nanobiotechnology
![Figure 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1477-3155-1-6/MediaObjects/12951_2003_Article_6_Fig2_HTML.jpg)
Spore-surface display using spore coat proteins. The B. subtilis spore is composed of an internal core (yellow) surrounded by a peptidoglycan-like cortex (in red) and a proteinaceous coat sub-divided into an inner (gree) and an outer (black) part. The fusion protein, composed by a carrier (blue) and a passenger (purple) part is exposed on the spore surface.