There is provided a compound comprising a structure represented by general formula (1) or ionized form thereof wherein A comprises a
carbohydrate or a
carbohydrate derivative; R1, R2, R3, R8, R9, and R10 are each independently H, optionally substituted
alkyl, optionally substituted alkenyl, or optionally substituted alkynyl; R4 and R7 are each independently optionally substituted
alkyl, optionally substituted alkenyl, or optionally substituted alkynyl; R5 and R6 each independently comprises a
hydrophobic moiety; Z1 and Z2 are each independently selected from the group consisting of –O–C(=O)–, –C(=O)–O–, –C(=O)–, –O–, –RaN–C(=O)–, –C(=O)–NRb–, where Ra and Rb are each independently H, optionally substituted
alkyl, optionally substituted alkenyl, or optionally substituted alkynyl; x is an integer ≥ 1; and y is an integer ≥ 0.