Abstract: Synthetic human cell mimic hydrogel particles and their use in cytometric or coulter device applications are described. The synthetic human cell mimic hydrogel particles described herein are selectively tunable to have at least one optical, volumetric, or capacitance property that is substantially similar to a corresponding optical, volumetric, or capacitance property of the human cell mimic hydrogel particle's natural biological cell counterpart.

Abstract: Golf balls and systems for applying one or more polymer layers to a golf ball construct are disclosed. As but one example of disclosed systems, methods for injection molding a golf ball cover surrounding a core and having a maximum wall thickness of about 0.030 inch are disclosed. In but one example of such methods, a viscous polymer can be injected into a mold defining a cavity. A core portion or mantle portion of a golf ball can be substantially centered relative to the cavity. A plurality of spaced-apart radial film gates can be circumferentially positioned relative to the cavity. The viscous polymer can be conveyed into the cavity through the plurality of radial film gates and into a volume defined between the core portion or mantle portion and the mold so as to form a substantially uniformly distributed polymer layer. The polymer layer can solidify. A golf ball construct can be removed from the mold cavity. In some implementations, the golf ball construct comprises an outer cover of a golf ball.