查看文章

Osseointegration and corrosion resistance of artificial implants are two major factors that decide their acceptance or rejection by human bodies. This paper provides a robust method for improving the biological performance and corrosion resistance of type 316 L stainless steel (SS) through laser surface texturing (LST). Usage of the second harmonic of a nanosecond Nd:YAG laser, line focusing and optimized range of laser fluence enabled processing of a larger surface area making the method compatible for practical applications as artificial implants. Four different micro-groove patterns were generated on type 316 L SS sample at various laser powers such as 10 mW, 50 mW, 100 mW and 200 mW. Investigation pertaining to adhesion, orientation, and spreading of U2OS osteosarcoma bone cells on sample surface was carried out. Qualitative and quantitative analysis employing confocal and Field Emission …