Abstract: The present application discloses a plurality of embodiments and associated inventions, with respect to microfluidic systems for at least one of identifying, imaging, orientating, and sorting particles, in particular, biological cells, and more particularly, X and Y sperm cells. In some embodiments, a module system with functional connectors is provided, each module being connected by a connector that can provide additional functionality aside from enabling fluid flow between modules. The present disclosure also is directed to microfluidic systems which include particle delivery tubes configured to orient particles (e.g., X and Y sperm cells), as well as microfluidic systems for generating a static, spatial patterns within the microfluidic channel.