Enhancement of bioactivity of glass by deposition of nanofibrous Ti using high intensity laser induced reverse transfer method

Abstract

The aim of this research is to develop a new method for the enhancement of bioactivity of glass and transparent materials by the deposition of Ti nanofibrous structures generated by a high intensity laser induced reverse transfer method (HILIRT). Titanium nanofibers with different porosity, fiber diameter, and bioactivity are synthesized at various ranges of pulse frequency, power, and scanning speed combined with the HILIRT method. Features and bioactivity of these deposited Ti coatings before and after seven days immersion in simulated body fluid are compared. The results show increasing laser frequency and laser power leads to more Ti nanofiber generation and enhanced biocompatibility, while increasing laser scanning speed results in lower Ti nanofiber growth and lower biocompatibility. Combination of the laser parameters such as frequency, power, and scanning speed can optimize the deposited Ti nanofiber properties for a wide range of biomedical applications using transparent biomaterials such as implanted optoelectronics and light guiding devices, lab on a chip (LoC) and in-vitro and real time analysis of living cells in laboratories.