Biomimetic hierarchical micro/nano texturing of TiAlV alloys by femtosecond laser processing for the control of cell adhesion and migration

Abstract

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Fabrication of Water‐ and Ice‐Repellent Surfaces on Additive‐Manufactured Components Using Laser‐Based Microstructuring Methods

“…[15] Thus, it can be concluded that hierarchical textures with different-sized features have proven to be useful for further enhancing the functionality of surfaces compared with singlescale patterns. [16,17] Pulsed laser sources with pulse durations in the nanosecond and picosecond regime are frequently used to create such textures in the micrometer range. Most research on surface functionalization has been conducted on polished surfaces with significant lower roughness values.…”

Electrical Impedance of Surface Modified Porous Titanium Implants with Femtosecond Laser

“…Femtosecond laser surface modifications on titanium and alloys substrates have been proved as a feasible tool to improve cells adhesion, differentiation, proliferation, and all together, more effectively boost osseointegration of the implant. In general, this physical modification technique allows: (1) custom design of nano-and micro-structures, such as laser induced periodically surface structure (LIPSS), ripples, columns, pits, and spikes [21][22][23], with an appropriate selection of laser beam parameters and conditions [24][25][26][27]; (2) formation of roughness with enhancement of wettability [28,29] or hydrophilicity-hydrophobicity of treated surfaces [29,30]; (3) inducing protein adsorption and following localized adhesion formation and cell shape-based mechanical restraints that promote osteogenic differentiation and hence, superior osseointegration of implants [31,32]; (4) prevention of bacterial adhesion and biofilm formation [33,34]; (5) variation of chemical composition of laser modified surfaces, for instance, bone-like apatite precipitation [35,36] and formation of nano-or micro-layers of oxides [37] such as, for example, protective TiO 2 on titanium substrates.…”

Laser Direct Writing of Highly Ordered Two‐Level Hierarchical Microstructures for Flexible Piezoresistive Sensor with Enhanced Sensitivity

“…These methods usually require multiple steps to complete the fabrication of HMs, and the process is complex, time‐consuming, and expensive, which limits the rapid fabrication and applications of flexible piezoresistive sensors. By contrast, laser has the advantages of fast and high efficiency for maskless, [ 29–32 ] making it a promising method for fabricating flexible electronics. [ 33 ] Deka et al.…”

“…[1] At present, researchers have proposed various manufacturing methods for developing flexible limits the rapid fabrication and applications of flexible piezoresistive sensors. By contrast, laser has the advantages of fast and high efficiency for maskless, [29][30][31][32] making it a promising method for fabricating flexible electronics. [33] Deka et al [34] induced carbon nanostructures on the carbon fabric using a continuous wave laser, which was subsequently used in fabricating a flexible strain sensor.…”