Gastrin-releasing peptide is a regulatory human peptide that elicits gastrin release and regulates gastric acid secretion and enteric motor function. The post-ganglionic fibers of the vagus nerve that innervate the G cells of the stomach release GRP, which stimulates the G cells to release gastrin.

Pyrithione is a transition metal complex, a zinc ionophore, that causes elevated zinc levels in mammalian cells. Pyrithione has potent bactericidal and antifungal activity.

Rhodamine 800 is a near-infrared fluorescent dye. The absorption maximum at 683 nm in acetone shifts to 696 nm in DMSO without a significant change of the overall spectral profile.