Polymer-protein conjugates have been designed to deliver an appropriate target growth factor to promote a more rapid healing of chronic wounds, an incredibly important area for the aging population throughout the developing world, costing the health service in Wales alone some £30M/year. Such wounds are characterised by dysfunctional extracellular matrix (ECM) regeneration, and there is evidence that the level of growth factor in the ECM is a key factor. Here, we wish to probe the structure of growth factor - dextrin and growth factor - hyaluronic acid conjugates in order to benchmark the observed biological activity with the structural characteristics of the conjugate.