International Journal of Heat and Fluid Flow, Journal Year: 2024, Volume and Issue: 110, P. 109616 - 109616
Published: Oct. 30, 2024
Language: Английский
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: March 4, 2025
Abstract In the innate immune system of mammalians, beating cilia epithelial cells and attached mucin proteins prevent colonization microbial pathogens. Abiotic biomaterials medical implants lack such protection thus are susceptible to colonization, leading biofilm formation persistent infections with high‐level antibiotic tolerance. To address this challenge, team further develops its new strategy control by magnetically driven oscillation micron‐sized pillars on biomaterials. This study is based a bioinspired design covalently coating mucin, glycoprotein found ubiquitously in mammalian systems. The results show that significantly enhances antifouling effects active topography both inhibition Pseudomonas aeruginosa removal mature biofilms. Analysis using scanning electron microscopy (SEM) reveals inhibits bacterial attachment near pillar base, area protected from direct force pillars. addition, twitching motility P. but represses swarming synthesis cyclic di‐GMP. These contribute activities. Overall, these findings demonstrate feasibility engineering materials for safer devices.
Language: Английский
Citations
0
Advanced Engineering Materials, Journal Year: 2025, Volume and Issue: unknown
Published: March 26, 2025
Aramid fabrics are used as substrates, with silica (SiO 2 ) and titanium dioxide (TiO particles serving functional coating materials to enhance the comprehensive performance of flame‐retardant meet diverse application requirements. This study investigates effects aramid fabric surface pretreatment, SiO coatings varying mass fractions, TiO composite on thermal‐insulation performance, water resistance, tensile properties. The results show that coated 15% fraction exhibits best a maximum temperature difference 6 °C between heat source. /TiO reduced thermal conductivity by 15.8%. significantly smaller burn areas than base fabric, an increased hydrophobicity 142.9° 22% improvement in strength. can their providing valuable insights for developing personal protective equipment.
Language: Английский
Citations
0
Advanced Materials Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: May 9, 2025
Abstract In this work, anisotropic line‐like textures with gradually increasing spatial periods from 2.0 to 4.8 µm are fabricated on stainless steel by two‐beam Direct Laser Interference Patterning using a ps‐laser source. Three manufacturing strategies developed fabricate these so‐called gradient structures achieving different surface roughness Rz and overall texture uniformity. The influence of unidirectional gradients wetting properties is studied depositing 1 µL water droplets. results show that the optimum‐designed patterns induce in all cases spontaneous motion droplets direction periodicity, or equivalently, hydrophilicity. It also observed direct correlation between ratio traveling distance, which reaches maximum 0.99 mm for period 2.24 −1 . Furthermore, multidirectional produced combining areas opposing orientations. characteristics such complex measured, showing strong local dependency contact angle droplet displacement. findings work provide new design rules customizing surfaces able realize predictable, position‐dependent directional movement microliter
Language: Английский
Citations
0
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: May 14, 2025
The mobility of drops on a surface influences how much water and energy is required to clean the surface. By controlling drop mobility, it possible promote or reduce fogging, icing, fouling. Superhydrophobic slippery liquid-infused surfaces both display high despite being 'lubricated' by fluids having very different viscosities. rely micro- and/or nanoscale textures trap air pockets beneath drops, minimizing solid-liquid contact. In contrast, surfaces, these solid are filled with an immiscible liquid lubricant. Over past few years, innovations in experimental computational methods have provided detailed new insights into static dynamic wetting properties surfaces. this review, we describe criteria needed obtain stable states low friction discuss mechanisms that been proposed explain origins each Drops can collapse from low-friction Cassie state high-friction Wenzel but transition follows pathways: ridge near edge plays central role triggering collapse, phenomenon not observed superhydrophobic This review emphasizes cannot be simply viewed as replaced surrounding significantly alters most drop's properties, including macroscopic shape, mechanisms, mechanism state.
Language: Английский
Citations
0
Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 114906 - 114906
Published: Nov. 1, 2024
Language: Английский
Citations
2
International Journal of Heat and Fluid Flow, Journal Year: 2024, Volume and Issue: 110, P. 109616 - 109616
Published: Oct. 30, 2024
Language: Английский
Citations
0