Functional integration is an inherent characteristic for multiscale structures of biological materials. In this contribution, we first investigate the liquid-solid adhesive forces between water droplets and superhydrophobic gecko feet using a high-sensitivity micro-electromechanical balance system. It was found, in addition to well-known solid-solid adhesion, foot, with structure, possesses both functionality high force towards water. The origin could be attributed density nanopillars that...

Ceramic/polymer composite equipped with 3D interlocking skeleton (3D IL) is developed through a simple freeze-casting method, exhibiting exceptionally light weight, high strength, toughness, and shock resistance. Long-range crack energy dissipation enabled by structure considered as the primary reinforcing mechanism for such superior properties. The smart design strategy should hold place in developing future structural engineering materials.

Particulate matter (PM) pollution is a serious threat to human health. Zeolitic imidazolate framework-8 (ZIF-8) kind of metal-organic framework, and ZIF-8 not only can capture PM2.5 efficiently but also possesses excellent chemical thermal stability. In this study, ZIF-8-modified soluble polyimide (PI) nanofibrous membranes were prepared via an electrospinning process. As result, the PI-ZIF membrane shows high filtration efficiency (up 96.6 ± 2.9%), superior stability 300 °C), good...

A biomimetic "cactus spine" with hierarchical groove structure is designed and fabricated using simple electrospinning. This novel artificial cactus spine possesses excellent fog collection water transportation ability. model equipped spines also shows a great storage capacity. The results can be helpful in the development of collectors may make contribution to world crisis.

The brick–mortar structure CuS/PVDF nanocomposite films with enhanced absorption properties were fabricated based on the selectively synthesized CuS hexagonal nanoplatelets and PVDF.

Superhydrophobic surface with high solid/liquid adhesion is of great fundamental and technological importance. However, the fabrication adhesive superhydrophobic polymer surfaces stability rare, which limits utilization such in harsh environments. This paper illustrates a simple electrospinning way to produce fluorinated polyimide nanofibric mat superhydrophobicity as well thermal stability. The water contact angle on reaches 157.8° force drop up 98.3 μN. Moreover, able stand extreme heat...

Superhydrophobic silica/PI nanocomposite film with comprehensive dependent high performances is easily electrospun.

Paraffin deposition is a severe global problem during crude oil production and transportation. To inhibit the formation of paraffin deposits, commonly used methods are mechanical cleaning, coating pipe to provide smooth surface reduce adhesion, electric heating, ultrasonic microbial treatments, use inhibitors, etc. Pipeline coatings not only have advantages simple preparation broad applications, but also maintain long-term efficient stable effect. In recent years, important progress has been...

Abstract The so called inverted pyramid arrays, outperforming conventional upright textures, have been successfully achieved by one-step Cu assisted chemical etching (CACE) for light reflection minimization in silicon solar cells. Due to the lower reduction potential of 2+ /Cu and different electronic properties Si planes, substrate shows orientation-dependent. Different from obtained alkaline solutions, formation results coexistence anisotropic localized process. structure is bounded {111}...

Although penguins live in the world's coldest environment, frost and ice are seldom found on their feathers. That is to say, feathers exhibit excellent antifrosting or anti-icing properties. We that air-infused microscale nanoscale hierarchical rough structures endow body of Spheniscus humboldti with hydrophobicity (water CA ≈ 147°) antiadhesion characteristics adhesive force 23.4 μN), even for supercooled water microdroplets. A polyimide nanofiber membrane novel microstructures was prepared...

Flexible films with electromagnetic interference (EMI) shielding properties can be effective in reducing and radiation problems everyday environments. However, maintaining the durability of materials harsh environments is another important challenge. Herein, a "sandwich-structured" EMI film high thermal stability toughness was prepared by electrospinning technology. The sandwich consisted two identical layers silver nanowire-polyimide (AgNW-PI) nanofiber mats highly conductive layer Ti3C2Tx...

Inspired by dusty spider dragline silk, we studied the adhesive interaction between artificial nanofibers and their aerosol surroundings. The are found to be able actively capture particulate matters from environment, exactly as silk does. Examinations prove that such nanofibrous adhesion is insensitive chemical nature of fibers physical states matter depends only on fiber diameters. Such facts indicate a case dry adhesion, mainly governed van der Waals force, sharing same mechanism gecko...

The water strider is a wonderful case that we can learn from nature to understand how stride on the surface. Inspired by unique hierarchical micro/nanostructure of leg, in this article, designed and fabricated an artificial leg with refined nanogroove structure using electrospinning sacrificial template method. A model was equipped four legs showed remarkable water-repellent performance; namely, it could carry load about 7 times heavier than its own weight. Characterization demonstrated...

Background Many plants, including those commonly found in the Fagaceae family, produce more flowers and ovules than mature fruits seeds. In Castanea henryi , an ovary contains 16–24 ovules, but only one develops into a seed. The other abort or otherwise fail to fully develop, reason for this is unknown. Such strict reproductive screening mechanism rare plants. Methods study, controlled pollination scheme were adopted, conventional paraffin embedding semi-thin sectioning techniques, followed...

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During the process of running, pace varies with changes in time. Experienced runners adjust their by modifying stride length and frequency. To simulate relationship between length, frequency, pacing throughout a run using neural network methods, we can leverage temporal patterns present data. The unique memory capabilities Long Short-Term Memory (LSTM) networks make them well-suited for this task. enhance predictive accuracy LSTM model, incorporate self-attention mechanism that improves...