Laser surface modification of metallic biomaterials

Abstract

How would you……describe the overall signifi cance of this paper? Biomaterials' surface characteristics play a vital role to improve the service life of metal implants. Surface modifi cation of metal implants via lasers can elicit specifi c, desired, and timely response from the surrounding cells and tissues through improved multifunctionality, tribological, and mechanical properties, as well as biocompatibility. …describe this work to a materials science and engineering professional with no experience in your technical specialty? Artifi cial bone substitute materials' surface and bulk mechanical properties determine the quality of implant-bone integration, long-term stabilization, and, in turn, the in vivo life of an implant. As it is quite diffi cult to design metal implants fulfi lling both needs, a most popular approach is to fabricate implants with adequate bulk properties followed by a special treatment to enhance their surface properties, which is explored in this article. Vamsi Krishna Balla and Mangal Roy, research associates, Susmita Bose and Amit Bandyopadhyay, professors, are with W.M. Keck . Dr. Bandyopadhyay can be reached at (509) 335-4862; fax (509) 335-4662; e-mail amitband@wsu.edu.

Pulsed laser-deposited hopeite coatings on titanium alloy for orthopaedic implant applications: surface characterization, antibacterial and bioactivity studies

“…Figure 5 presents the SEM micrograph of the cross section of the hopeite-coated sample. The SEM micrograph confirms that the interface between hopeite coating and the Ti-6Al-4V substrate is sound and rather diffused, which are the characteristics of the laser-deposited coatings [60][61][62].…”

Electrochemical behaviour of laser-clad Ti6Al4V with CP Ti in 0.1 M oxalic acid solution

“…SEM images clearly shows needle-like acicular a also known as a 0 martensite in all the coatings. Formation of acicular a in the laser treatments has been reported by Bandyopadhyay et al, [28]. Chikarakara et al [29], reported the phase transformation from a þ b structure into a fine martensite structure.…”

Surface Science Engineering through Sol-Gel Process

“…For the above, various techniques have been described as effective means of surface treatment and corrosion resistance enhancement of NiTi implants, including chemical passivation, electropolishing, anodization, thermal oxidation, laser surface melting, nitriding, plasma ion implantation, and coating with sol-gels [70][71][72][73][74][75].…”