Influence of Scanning on Nano Crystalline β-Ti Alloys Fabricated by Selective Laser Melting and Their Applications in Biomedical Science

Abstract

<jats:p>The present study focuses on the microstructural and bioactive properties evolution in selective laser melting (SLM) <jats:italic>β</jats:italic> titanium alloys. We have applied cross-scan strategy for improving mechanical properties and lower elastic modulus of SLMed Ti–20Mg–5Ta alloys which has been shown to be altering the microstructure and refining the grain size. The cross-scan strategy can refine the microstructure and induce various deformation textures in contrast to the conventional scan strategy. The microstructures of Ti–20Mg–5Ta alloys indicate that the cross-scan strategy will yield the best mechanical properties and lower elastic modulus. The corrosion behavior of the Ti–20Mg–5Ta alloys was studied during immersion in an acellular simulated body fluid (SBF) at 37±0.50 °C for 28 days. Both the mechanical and bioactive properties showed that the novel Ti–20Mg–5Ta alloys should be ideal for bone implants.</jats:p>

Sensitive Voltammetric Sensor for Tryptophan Detection by Using Polyvinylpyrrolidone Functionalized Graphene/GCE

“…However, excessive Trp may produce a toxic waste in the brain, causing delusions and hallucinations [2]. In addition, it is thought to be a possible cause of schizophrenia in humans who cannot metabolize it properly [3][4][5]. Because of this clinical background, a convenient quantitative method for Trp is expected to bring many medical benefits.…”

Electrodeposition of Ti-Doped Hierarchically Mesoporous Silica Microspheres/Tungsten Oxide Nanocrystallines Hybrid Films and Their Electrochromic Performance

“…The resultant WO 3 microbowl array film showed superior electrochromic property with coloration efficiency of 68 cm 2 C −1 , response times of 3.6 s (coloration) and 1.0 s (bleaching) in comparison with the dense film prepared without a PS template. Compared with the template method, simultaneous electrodeposition of WO 3 and other nanomaterials for fabrication of composite WO 3 film is more convenient and efficient in creation of a porous structure in WO 3 film [33][34][35]. Song et al [36] reported the fabrication of porous WO 3 film by electrochemically polymerizing 3-chlorothiophene on the surface of WO 3 film in the ionic liquid 1-butyl-3-metyllimidazolium hexafluorophosphate.…”