TYR and melanoma: The cell culture study shows that it can inhibit the proliferation of murine B16F10 melanoma cells in the “proliferation model.” It can also inhibit the attachment of murine B16F10 melanoma cells in the “attachment model.” The component analysis shows that the enzymatic action of tyrosinase on tyrosine plays the major role in the nanocapsule-[polyHb-Tyr].