Abstract: Provided herein are particles comprising a polymer substrate comprising one or more hyaluronic acid chains; and two or more peptide moieties bound directly to each hyaluronic acid chain. In some embodiments, the two or more peptide moieties comprising collagen-binding peptide (CBP) and von Willebrand binding peptide (VBP). The particles can be utilized in, e.g., methods of hemostatic treatment.

Abstract: Provided herein are various functionalized particles comprising a shell, dendritic linkers, and functional moieties. The dendrimer linkers allow very large numbers of functional moieties to be bound to the shell. The functional moieties may comprise peptides which synergistically promote platelet aggregation and hemostasis in wounded tissues. The functionalized particles may further be effectors of wound healing, thrombolysis and other functions, depending on the selection of functional moiety. Functionalized polymers having these functions are provided as well.