Lipid nanomaterials and uses thereof

A compound represented by any one of Formulas I through XIX, or a pharmaceutically acceptable salt thereof:

• wherein
• R1, R2, R3, and R4 are each independently a substituted or unsubstituted C1-C20 alkyl;
• R5 and R14 are each independently hydrogen, a substituted or unsubstituted C1-C5 alkyl;
• R6, R7, R8, R9, R10, R11, R12, and R13 are each independently hydrogen, OH, halogen, or substituted or unsubstituted C1-C5 alkyl;
• R15, R16, and R17 are each independently hydrogen, OH, halogen, or substituted or unsubstituted C1-C5 alkyl;
• and
• R18 is OH or substituted or unsubstituted C1-C10 alkyl.