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| http://dx.doi.org/10.1097/CM9.0000000000001139 | DOI Listing |
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Enhanced self-cleaning performance of bio-inspired micropillar-arrayed surface by shear.
Bioinspir Biomim
September 2022
Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China.
Inspired by the sliding behavior of gecko feet during climbing, the contribution of the shear effect to the self-cleaning performance of a bio-inspired micropillar-arrayed surface is studied through a load-shear-pull contact process. It is found that self-cleaning efficiency can be enhanced significantly by shear. The efficiency also depends on microparticle size.
View Article and Find Full Text PDFSelf-Cleaning Performance of the Micropillar-Arrayed Surface and Its Micro-Scale Mechanical Mechanism.
Langmuir
August 2021
Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China.
The exceptional adhesive ability of geckos remains almost uninfluenced by contaminated surfaces, showing that the adhesion system of geckos has self-cleaning properties. Although there have been several studies on the self-cleaning performance of geckos and gecko-inspired synthetic adhesives, the microscale mechanical mechanism of self-cleaning is still unclear. In the present study, a micropillar-arrayed surface is fabricated using a template molding method to investigate its self-cleaning performance in a load-pull contact process.
View Article and Find Full Text PDFIn Situ Electric-Induced Switchable Transparency and Wettability on Laser-Ablated Bioinspired Paraffin-Impregnated Slippery Surfaces.
Adv Sci (Weinh)
July 2021
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China.
Switchable wetting and optical properties on a surface is synergistically realized by mechanical or temperature stimulus. Unfortunately, in situ controllable wettability together with programmable transparency on 2D/3D surfaces is rarely explored. Herein, Joule-heat-responsive paraffin-impregnated slippery surface (JR-PISS) is reported by the incorporation of lubricant paraffin, superhydrophobic micropillar-arrayed elastomeric membrane, and embedded transparent silver nanowire thin-film heater.
View Article and Find Full Text PDFLight-driven Locomotion of Underwater Bubbles on Ultrarobust Paraffin-impregnated Laser-ablated FeO-doped Slippery Surfaces.
ACS Appl Mater Interfaces
February 2021
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes. Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, China.
Manipulating underwater bubbles (UGBs) is realized on morphology-tailored or stimuli-responsive slippery lubricant-impregnated porous surface (SLIPS). Unfortunately, the volatile lubricants (, silicone oil, ferrofluid) greatly decrease their using longevity. Designed is light-responsive paraffin-infused FeO-doped slippery surface (LR-PISS) by incorporation of hybrid lubricants and superhydrophobic micropillar-arrayed elastometric membranes resulted from one-step femtosecond laser vertically scanning.
View Article and Find Full Text PDFHow to Achieve a Monostable Cassie State on a Micropillar-Arrayed Superhydrophobic Surface.
J Phys Chem B
January 2021
Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China.
Superhydrophobic surfaces with a monostable Cassie state possess numerous interesting applications in many fields, such as microfluidics, oil-water separation, drag reduction, self-cleaning, heat dissipation, and so on. How to guarantee a monostable Cassie state of a superhydrophobic surface is still an interesting problem. In this paper, considering the influence of external interferences that may induce the possible wettability transition, the whole wetting process of a droplet on a trapezoidal micropillar-arrayed superhydrophobic surface is divided into six possible stages.
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