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(A) Structure of quaterphen[n]arenes (H13, H14) (I) and PXG (II). (B) Schematic representation of H13/H14 improving the metabolic stability of a peptide. (C) Hemolysis of H13 and H14 toward rRBCs, rRBCs incubated with 1% Triton X-100 were used as a positive control. (D) Cytotoxicity of free PXG and PXG complex, ☆☆☆☆ p < 0.0001. Reproduced from ref. [138] with permission from John Wiley and Sons.
