| abstract |
Disclosed is a chitosan-containing vector as set forth in formula (I): wherein R1, R2, R3,R4, R5, and R6 are as defined herein, and w, p, and z are integers varying from 0 to 1500, the sum of which is between 50 and 1500, so as to define a chitosan backbone with a molecular weight between 10 kDa and 300 kDa. The chitosan-containing vector comprising 5% to 55% of N,N-diisopropylethylamine, relatively to the sum of w, p, and z, and up 5% for pegylated units. There is also described the use of this vector with a siRNA as a mean for transfection or transformation of the siRNA for treating various diseases. |