190 | Surface engineering of titanium implants with vanillin-chitosan and cerium doped-nanoparticle coatings for improved osteoimmune response: Ioannis Tsamesidis1, Styliani Axypolitou1, Georgia K. Pouroutzidou1, Maria Bousnaki1, Dimitrios Bikiaris1, Evi Christodoulou1, Antonios D. Anastasiou2, Eleana Kontonasaki1 | 1Aristotle University of Thessaloniki, Greece 2University of Manchester, UK. J Biol Res. 2026;99(s1). doi:10.4081/jbr.2026.15442