Adsorbed proteinswere eluted and analyzed using immunoblotting techniques, and quantified using a 12-point grayscale.Clot formation in the presence of PCL fibers was investigated in normal and toxin-treated plasma using a turbidimetric plasma clotting assay. With the development of polymer additive manufacturing and processing technologies, the tunability and potential functionality of polymeric fibers and porous matrixes are promising next-generation materials for personalized dialysis applications.