| abstract |
Disclosed are polymers that are poly (beta-amino esters) (PBAEs) modified with at least one oligopeptide. The polymer can be used in any field where the utility of the polymer has been found, for example in the medical field, in particular in the field of drug delivery. The polymers are particularly useful for delivery of polynucleotides, small molecules or proteins such as DNA, RNA and siRNA. Also disclosed is a composition comprising the polymer and an active agent, a method of encapsulating the drug in a matrix of the polymer, and the polymer and composition for use in medicine. [Selection figure] None |