Patent ID: 7208266

Claim:
A composition, which comprises a mixture of at least two different compounds with formula: wherein group A and group R are identical or different on said two different compounds, and wherein A is selected from the group consisting of where M + is a cation, q is 1 or 2 and p×q=2; and wherein R is selected from the group consisting of —[O—(CH 2 ) m]n —OH, where m is equal to 2, 3, 4 or 5 and n is a whole number between 1 and 170, —[NH—(CH 2 ) m]n —NH 2 , where m is equal to 2, 3, 4 or 5 and n is a whole number between 1 and 170, and a peptide containing between 1 and 12 amino acids, the composition comprising at least a compound wherein A is where M + is a cation, q is 1 or 2 and pxq is 2.