A method for separating proteins from plant material, in particular, intact algal cells, using an amphipathic solvent set and a hydrophobic solvent set. For example, described herein are systems, methods and devices to enhance a user’s cognitive function in such areas as memorization and learning. The acetabular cup inserter includes a frame having an offset frame leg to allow for placement of an acetabular cup in the correct anteversion and abduction without interference from soft tissue.