Surface modifications of vascular grafts

MaterialFabricationSurface modificationTime of effectTarget effectAdditional notesReference
Segments of the vasculature of porcine and rabbit Glutaraldehyde-cross-linkedHeparin5 months CalcificationEffective in porcine thoracic aorta (AO), pulmonary artery (PA), and ineffective in jugular vein (JV) and rabbit aorta (RA)[25]
Porous polyurethane (PU) vascular graftDip-coatedSulfonated poly(ethylene oxide) (PEO-SO3)-grafted PU copolymer (PU-PEO-SO3)14–39 daysCalcification, platelet adhesion, and thrombosisPU-PEO-SO3 provided additional structural support.
Calcium deposits resurfaced over time.
[4]
Polycaprolactone (PCL) vascular graftElectrospinning with catechol/gallol surface chemistryPolyethyleneimine, heparin, and epigallocatechin gallate28 daysPlatelet adhesion/activation and fibrinogen formation-[26]
PU vascular graftsDip-coated with multiple layers of plasticized polyvinyl chloridePolymer containing a nitric oxide dono (dialkylhexanediamine diazeniumdiolate)21 daysPlatelet adhesion and thrombosis-[28]
Poly(ester urethane)urea graftAmine-carboxyl chemical immobilizationMethacryloyloxyethyl phosphorylcholine24 weeksPlatelet adhesion-[31]
Tissue-engineered decellularized vascular graftsCovalent attachment of thiol-functionalized hyaluronan onto the thiol-reactive vessel/graftHyaluronic acid hydrogel5 weeksPlatelet adhesion/activation and fibrinogen and fibrin formationDecrease macrophage adhesion[32]
PCL fibersElectrospinningCu-metal organic frameworks12 weeksPlatelet adhesion/activationPromote endothelial monolayer[33]
Hydroxyl-terminated poly(ethylene-co-vinyl alcohol)Covalent attachment through hydroxyl
groups
Vascular endothelial growth factor receptorNot statedIncrease endothelialization of graft-[36]
Expanded polytetrafluoroethylene (ePTFE) vascular graftsCovalent attachment of silanized anti-CD34 antibodies (CD34-APTES) to the hydroxyl-terminated ePTFE surfacePerfluoroperhydrophenanthren lubricant and (3-aminopropyl) triethoxysilane (APTES) silanized anti-CD344 daysThrombosisCapture endothelial cells and prevent nonspecific adhesion[46]
PU and polyethylene terephthalate
(PET)
Covalent attachment through hydroxyl
groups
Slippery-liquid infused porous surface (SLIPS)8 hoursThrombosis; Icing; Scaling; Fouling; Corrosion-[49]
Titanium alloyCovalent attachment through hydroxyl groupsSLIPS25 hoursPlatelet adhesion-[6]
ePTFEDip-coating SLIPS (Three lubricants tested perfluoropolyether, and perfluorodecalin21 daysS. aureus infectionDecrease macrophage inflammatory cytokine[53]
Glass substratesChemical-vapor depositionTethered-liquid perfluorocarbons40 minutesPlatelet adhesionMeasured optimal thickness (between 100 nm and 2 μm) of lubricant to limit loss due to shear stress[54]
Tissue-engineered decellularized vascular graftsDynamic culturingHuman endothelial progenitor cells and umbilical cord-derived mesenchymal stem cells2 hours Thrombosis-[5]
Tissue-engineered decellularized vascular graftsDynamic culturingHuman umbilical vein endothelial cells14 days (cell viability)Thrombosis-[55]

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