Coating polyvinylchloride surface for improved antifouling property.

Area of Science:

• Biomaterials Science
• Surface Chemistry
• Medical Device Coatings

Background:

• Antifouling surfaces are critical for cardiovascular applications to prevent device failure.
• Polyvinylchloride (PVC) is a common material in medical devices but prone to biofouling.
• Developing effective antifouling strategies for PVC is essential for improving patient outcomes.

Purpose of the Study:

• To modify a polyvinylchloride (PVC) surface with a biocompatible, hydrophilic polymer coating.
• To evaluate the antifouling properties of the modified PVC surface against mammalian cells and bacteria.
• To assess the potential of this novel coating for cardiovascular applications.

Main Methods:

• Surface activation and functionalization of PVC.
• Coating the modified PVC surface with a biocompatible and hydrophilic polymer using a mild technique.
• Quantifying the reduction in 3T3 fibroblast cell adhesion.
• Assessing bacterial adhesion reduction for Pseudomonas aeruginosa, Staphylococcus aureus, and Escherichia coli.

Main Results:

• The polymer-coated PVC surface demonstrated significantly reduced 3T3 fibroblast cell adhesion (52-66% reduction).
• Substantial reductions in bacterial adhesion were observed: 61-80% for P. aeruginosa, 65-81% for S. aureus, and 73-85% for E. coli.
• The hydrophilic polymer coating effectively imparted antifouling properties to the PVC surface.

Conclusions:

• The novel polymer-coated PVC surface exhibits significant antifouling characteristics.
• This modified PVC surface shows promise for reducing biofouling in cardiovascular devices.
• The mild coating technique offers a viable method for creating advanced biomaterials.