Preliminary Biocompatibility Studies of Nano-Zinc Bioceramic Orbital Implant for Anophthalmic Socket Application

The increasing demand for effective ocular prosthetics has led to the exploration of innovative materials for orbital implants. The study focuses on the preliminary biocompatibility assessment of nanozinc bioceramic orbital implant intended for anophthalmic socket applications. These implants aim to address common complications such as infection and inflammation in patients requiring ocular prostheses. Bioceramic orbital implants were fabricated using conventional techniques using biphasic calcium phosphates and kaolin clay as raw materials. The bioceramic material, engineered for its antibacterial properties, is evaluated for its cytotoxic response. In vitro tests are conducted to determine the cellular response and antibacterial efficacy of the implants. Effect of different loadings of nanozinc oxide onto the bioceramic orbital implant were investigated. Disc diffusion method using test organisms Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) has revealed the resistance of the bioceramic orbital implant against bacterial attack. Moreover, MTT cytotoxicity test has shown fibroblast cell viability indicating good biocompatibility. Ultimately, the bioceramic orbital implant has presented no adverse effects upon exposure to Albino rabbits using dermal and eye irritation tests. The findings from this preliminary research will provide crucial insights into the feasibility and safety of using antibacterial bioceramic materials for orbital implants, potentially improving clinical outcomes for patients with anophthalmic sockets.