Numerical study of the wetting dynamics of droplet on laser textured surfaces: Beyond classical Wenzel and Cassie-Baxter model

Biomimetic Slippery Surface with Exclusive Liquid-Repellent and Self-Cleaning Properties for Antifouling

“…This degree of superhydrophobicity exhibited strong liquid repellency compared to smooth PDMS and was already very close to the hydrophobic performance of the original surface ( Nepenthes pitcher neck slip zone). This phenomenon could be explained by the fused Wenzel and Cassie models, in Figure b, − where a layer of air bubble film appeared between the lunar bone texture and liquid, resulting in a layered contact structure composed of the lunar bone texture surface, bubble film, and attached liquid. The microstructure of the lunar bone texture surface allows only a small portion of the attached liquid to immerse into the groove of the texture, thus forming a layer of bubble film.…”

Evaporative and Wicking Functionalities at Hot Airflows of Laser Nano-/Microstructured Ti-6Al-4V Material

“…It is important to note, that advanced industrial laser systems provide currently processing rates up to 1 m 2 s −1 , thus enabling mass production of multifunctional metal, semiconductors, glasses, and polymer materials [ 32 ]. Although there is a general consensus that femtosecond lasers outperform other lasers in terms of nanostructuring capability and controllability [ 31 , 39 , 40 , 76 ], less expensive picosecond and nanosecond lasers can be also used for surface nano/microstructuring [ 77 , 78 , 79 ]. Low-cost mass production of nano/microstructured polymer and other soft materials for low-temperature HMXs can be also implemented using nanoimprinting technology, where a femtosecond laser is utilized for producing a mold and then the nano/microstructures fabricated on the mold are replicated on a soft material [ 80 , 81 ].…”

Drop Behavior on Heterogeneous Ratchet-Structured Substrates Harmonically Vibrated in Lateral Direction

“…Dynamics of sessile droplets on vibrated plates or on textured substrates is a ubiquitous phenomenon in our everyday experience, often leading to fascinating beautiful drop shapes. − Wide applications of these problems are illustrated in literature, for example, in ink-jet printing, self-cleaning surfaces, microelectronics, microfluidic devices, or biomedical engineering (see ref and references therein). Forcing vibrations can be experimentally realized by a camshaft driven by an electric motor or by electromagnetic vibration exciters (shakers). , Textured surfaces can be realized chemically − or opto-mechanically by femtosecond laser pulses. − …”

“… 5 , 6 Textured surfaces can be realized chemically 7 − 11 or opto-mechanically by femtosecond laser pulses. 12 − 14 …”