Patent ID: 7666911

Claim:
A compound having formula (I): W—C≡C—C≡C—V-L-Q X (I) wherein the moiety W—C≡C—C≡C—V is a bilayer-compatible hydrophobic chain, wherein W is CH 3 (CH 2 ) a — and V is —(CH 2 ) b —; where a+b is from about 4 to about 40; L is a linker comprising a chain of about 1-10 atoms; Q is —NH 2 R + ; X is an anion; R is selected from the group consisting of C 1 -C 8 alkyl and C 6 -C 10 aryl; R being unsubstituted or substituted with one or more substituents selected from the group consisting of halogen, oxo, acyl, alkenyl, alkoxyl, alkyl, alkylamino, amino, aryl, cycloalkyl, heterocyclyl, and heterocyclylalkyl.