Effects of UV Treatment on Ceria-Stabilized Zirconia/Alumina Nanocomposite (NANOZR).
Satoshi KomasaSeiji TakaoYuanyuan YangYuhao ZengMin LiSifan YanHonghao ZhangChisato KomasaYasuyuki KobayashiHiroshi NishizakiHisataka NishidaTetsuji KusumotoJoji OkazakiPublished in: Materials (Basel, Switzerland) (2020)
Nanostructured zirconia/alumina composite (NANOZR) has been explored as a suitable material for fabricating implants for patients with metal allergy. In this study, we examined the effect of UV treatment on the NANOZR surface. The experimental group was UV-treated NANOZR and the control group was untreated NANOZR. Observation of the surface of the UV-treated materials revealed no mechanical or structural change; however, the carbon content on the material surface was reduced, and the material surface displayed superhydrophilicity. Further, the effects of the UV-induced superhydrophilic properties of NANOZR plates on the adhesion behavior of various cells were investigated. Treatment of the NANOZR surface was found to facilitate protein adsorption onto it. An in vitro evaluation using rat bone marrow cells, human vascular endothelial cells, and rat periodontal ligament cells revealed high levels of adhesion in the experimental group. In addition, it was clarified that the NANOZR surface forms active oxygen and suppresses the generation of oxidative stress. Overall, the study results suggested that UV-treated NANOZR is useful as a new ceramic implant material.
Keyphrases
- induced apoptosis
- oxidative stress
- endothelial cells
- bone marrow
- aqueous solution
- cell cycle arrest
- signaling pathway
- single cell
- high glucose
- diabetic rats
- endoplasmic reticulum stress
- escherichia coli
- cystic fibrosis
- mass spectrometry
- pseudomonas aeruginosa
- soft tissue
- vascular endothelial growth factor
- reduced graphene oxide
- cell adhesion
- heat shock
- pluripotent stem cells