An injectable hydrogel for
drug delivery is provided having a first component of repeating
protein domains, and a second component cross-linked with the first component. The
protein domain in the repeating
protein domains is a WW protein sequence interspersed with hydrophilic protein sequences (repeats ranges from 2 to 10). The second component is an inter-
bilayer crosslinked multilamellar
vesicle. The
vesicle is capable of containing
drug cargo and eluting the
drug cargo. The
vesicle is derived from a first lipid and a second lipid. The surface of the vesicle has tethers, which are cross-linked with protein domains of the first component. Control over
elution rate of drug cargo is accomplished through stabilization of the vesicles. Gelation occurs in a simple and
rapid mixing of the two components without the necessity of additional crosslinking stimuli. Tuning of
elution rate is achieved while not losing injectability. Bioresorbable components are used.