Abstract
To achieve efficient lubrication interfaces on Ti6Al4V, novel PEI/PAA polyelectrolyte multilayer (PEM) films embedded with silver nanoparticles (AgNPs) are designed via an environment-friendly method. The films were developed through a layer-by-layer assembly method, subsequently in-situ incorporation of AgNPs into PEM film via UV irradiation reduction. The Young's modulus and hardness have been significantly improved. The friction coefficient of (PEI-Ag/PAA)10 exhibits a low value, approximately 0.053. The polymer-bearing interfaces and counterpart steel ball exhibit unmeasurable superlow wear. Furthermore, the antibacterial effectiveness against Escherichia coli and Staphylococcus aureus bacteria is improved, while maintaining a high level of cell compatibilities. The PEM films embedded with AgNPs exhibit the promising prospects as a biologically lubricated interface for artificial joints and other implant prostheses.
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