Study of Bacterial Culture on Zirconia and Alumina Surfaces Through Laser Surface Treatment

Abstract

This study explores the growth of bacteria on zirconia and alumina, two ceramics commonly used in biomaterials, using a laser to prepare these surfaces for bacterial cultivation. We focused on how adjusting the laser fluence can change the size of ceramic particles on these surfaces, which in turn affects bacteria’s ability to grow. By measuring contact angle and roughness, their correlation with bacterial growth was confirmed. We found that higher laser power strengthens the natural properties of zirconia and alumina that affect bacteria growth. This result is significant for biomaterials and microbial engineering because it means we can enhance how well bacteria grow on these surfaces by simply using a laser parameter. This capability opens up new possibilities in designing surfaces that interact with microbes in specific ways, such as creating antimicrobial coatings or improving biomaterials for medical uses.