#$%^&*AU2011265548A120120202.pdf#####ABSTRACT A particle differentiation apparatus, comprising: at least one asymmetric particle having orientation characteristics within a fluid stream a irradiation source generating an irradiation beam responsive to said asymmetric particle optics to focus said irradiation beam a light emission material coupled to said asymmetric particle, wherein said light emission material emits light in response to said irradiation beam a detector deferentially responsive to said light emitted from said light emission material based upon said particle orientation characteristics and an analyzer coupled to said detector, wherein said analyzer differentiates said asymmetric particles based upon orientation within said fluid stream.
