Design novel three-dimensional network nanostructure for lubricant infused on titanium alloys towards long-term anti-fouling

Preparation of Multiscale Slippery Liquid‐Infused Porous Surface Based on Ti6Al4V Alloy with Self‐Cleaning, Stability, and Self‐Healing Properties

“…Figure 2a shows the microprotrusion arrays at a magnification of 200 times; the microgaps and deep pores between the protrusion arrays were observed which can store the lubricating liquid more stably and efficiently via capillary effect to greatly prevent the lubricant loss. [ 43 ] The single protrusion structure with submicro‐ and nanocracks can be seen in Figure 2b. Further, it can be plainly found that there were a large number of nanoparticles covered on the micro protrusion structure surface in Figure 2c.…”

“…For example, Xie et al prepared three kinds of nanoscale SLIPS on Ti6Al4V surface by hydrothermal method and the as‐prepared SLIPS showed good antifouling property. [ 43 ] Wang et al prepared the SLIPS with nanotube structures by anodic oxidation method on Ti6Al4V, which shows good anticorrosion and antifouling properties. [ 44 ] Villegas et al reported a chitosan‐impregnated LIS nanoscale coating by a combination of oxygen–plasma treatment, chemical vapor deposition (CVD), chitosan submersion, and lubricant infusion, which facilitates cell adhesion at the same time preventing biofilm formation.…”

Anti-Periprosthetic Infection Strategies: From Implant Surface Topographical Engineering to Smart Drug-Releasing Coatings

“…The type of predominant interaction varies from one bacteria to another and may even change upon mutations. Although no single theoretical model alone can accurately predict bacterial adhesion on different surfaces due to the complex nature of bacteria–surface interactions, altering surface topographical and physiochemical properties have been pursued extensively in designing antifouling surfaces. − Surface topography, roughness, hydrophilicity/hydrophobicity, and surface energy have all been recognized to play crucial roles in the initial adhesion of bacteria, nonspecific adsorption of proteins and subsequent bacterial colonization and biofilm formation. , Some of the antifouling strategies reviewed here draw their inspirations from nature, such as the self-cleaning texture in the lotus leaf and the super-hydrophobic butterfly wings, mosquito eyes, and shark skins . The antifouling surface topographical modifications discussed here involve changes in surface structures at atomic, molecular, or textural levels. ,− The antifouling surface coatings refer to the spreading and formation of an additional layer on the implant surface achieved physically, chemically, or by a combination of both. − QS interference will also be discussed as it constitutes an alternative means of mitigating biofilm formation on implant surfaces.…”

Efficient and Controllable Preparation of Tridirectionally Anisotropic Sliding Surfaces Based on Spatial Light Modulator

“…The preparation of this anisotropic micro/nanostructure on the sample surface can allow the droplets to have different sliding performance in the direction of the “up” and “down” steps of perpendicular grooves. This special anisotropic micro/nanostructure has great potential application value in droplet transportation, microfluidics, , lab-on-chips, self-cleaning, antibiofouling, , water mist collection, , chemical microreactors, and so on. At present, this microstructure can be obtained by femtosecond laser single-focus direct writing, but the efficiency of this processing method will decrease sharply with the increase of the number of steps of anisotropic micro/nanostructures.…”