Synthesis and characterization of fucoidan/chitosan-coated nanoliposomes for enhanced stability and oral bioavailability of hydrophilic catechin and hydrophobic juglone

•Fucoidan/chitosan effectively coated nanoliposomes-embedded catechin and juglone.•The physicochemical properties and stability of nanoliposomes were investigated.•Fucoidan coating improved nanoliposomes’ stability and encapsulation efficiency.•In simulated digestion, fucoidan coating provided a sustained release profile.