Construction and characterization of an antibacterial/anticoagulant dual-functional surface based on poly l-lactic acid electrospun fibrous mats

In this study, a poly l-lactic acid (PLLA) fibrous mat was prepared by electrospinning, followed by surface modification with polydopamine (PDA), based on its strong adhesion performance and self-polymerization of dopamine. The PDA coating on the fibrous mat surface provided a reaction platform for heparin via a Michael-type addition reaction and a reductive surface for Ag+ in situ formation of silver nanoparticles (AgNPs) in AgNO3 solution. The...