Review Article

Nanoparticulate Tubular Immunostimulating Complexes: Novel Formulation of Effective Adjuvants and Antigen Delivery Systems

Figure 3

Structural formulas of triterpene glycosides extracted from holothurians: (a) cucumarioside G1, (b) CDA, (c) frondoside A, and (d) holotoxin A1.
(a)
(b)
(c)
(d)