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). https://doi.org/10.4081/jbr.2026.15442.