Because of its high sensitivity to even small objects and the quick measurement principle, angle-resolved scattering
(ARS) measurements exhibit a promising potential as a rapid analysis tool for bacterial cells at small sample sizes
and very low numbers of cells. In this study, investigations on scattered light from various bacterial cell samples
revealed applicability down to single cell levels, which is a huge benefit compared to conventional methods that
depend on time-consuming cellular growth over several hours or even days. With the proposed setup and data
analysis method, it is possible to detect scatter differences among cell types, together with the cell concentration.