Abstract Solar-driven water evaporation represents an environmentally benign method of purification/desalination. However, the efficiency is limited by increased salt concentration and accumulation. Here, we propose energy reutilizing strategy based on a bio-mimetic 3D structure. The spontaneously formed film, with thickness inhomogeneity temperature gradient, fully utilizes input through Marangoni effect results in localized crystallization. rate 2.63 kg m −2 h −1 , >96% under one sun...

Abstract Solar‐driven water evaporation has been considered a sustainable method to obtain clean through desalination. However, its further application is limited by the complicated preparation strategy, poor salt rejection, and durability. Herein, inspired superfast transportation of Nepenthes alata peristome surface continuous bridge‐arch design in architecture, biomimetic 3D solar evaporator proposed induce Marangoni flow for long‐term rejection. The formed double‐layer liquid film on...

Nowadays, oily wastewater and spilled oil have caused great threats on both ecosystem human life. To address these severe problems, considerable efforts been possessed developing novel oil/water separation materials. The porous oil‐absorbent materials, especially the polydimethylsiloxane (PDMS) with excellent properties of easy fabrication inherent hydrophobicity, attracted tremendous attentions from worldwide. conventional methods using salt or sugar as sacrificial template water solvent...

Developing an effective and sustainable method for separating purifying oily wastewater is a significant challenge. Conventional separation membrane sponge systems are limited in their long-term usage due to weak antifouling abilities poor processing capacity with multiple oils. In this study, we present dual-bionic superwetting gears overflow system liquid steering abilities, which enables the of oil-in-water emulsions into pure phases. This achieved through synergistic effect surface...

Abstract In recent years, interfacial solar‐driven steam generation has gained huge attention as a sustainable and energy‐efficient technology. However, salt scaling on inside the evaporator structure induced by insufficient ion distribution control will lower evaporation performance hinder stability durability of evaporators. Herein, inspired highly efficient salt‐expelling property gill filaments large yellow croaker, bionic‐gill 3D hydrogel is proposed with fabulous multidirectional...

The application of physical fields is crucial for droplet generation and manipulation, underpinning technologies like printing, microfluidic biochips, drug delivery, flexible sensors. Despite advancements, precise micro/nanoscale accurate reactions remain challenging. Inspired by the liquid ejection mechanisms in microscopic organisms, an electrostatic manipulator capture, emission, transport microdroplets proposed. This approach enables controlled periodic emission nanoscale daughter...

Significance Although various creatures possess different structural gradients to gather water from fog, such as spider silk and cactus cluster, their gradient surfaces can only drive the motion of harvested droplets over a limited drop-sized distance afford slow speed, limiting practical usage. The peristome pitcher plant presented here is superior fog harvestor that capitalizes on combined effects ratchet, concavity, arch structures collect humid air transport condensate directionally...

Abstract Separation of micro‐scaled water‐in‐oil droplets is important in environmental protection, bioassays, and saving functional inks. So far, bulk oil–water separation has been achieved by membrane sponge absorption, but micro‐drop still remains a challenge. Herein we report that instead the “plug‐and‐go” model, tiny can be separated into pure water oil through “go‐in‐opposite ways” on curved peristome‐mimetic surfaces, milliseconds, without energy input. More importantly, this overflow...

The ballistic ejection of liquid drops by electrostatic manipulating has both fundamental and practical implications, from raindrops in thunderclouds to self-cleaning, anti-icing, condensation, heat transfer enhancements. In this paper, the jumping behavior a superhydrophobic surface is investigated. Powered repulsion same kind charges, water can jump surface. acting time for microliter supercooled drop only takes several milliseconds, even shorter than icing. addition, one control direction...

Liquids unidirectional transport has cutting-edge applications ranging from fog collection, oil-water separation, to microfluidic devices. Despite extensive progresses, existing man-made surfaces with asymmetric wettability or micro/nanoscales structures are still limited by complex fabrication techniques obscure essential mechanisms achieve both high speeds and large volumes. Here, we demonstrate the three-dimensional printed micro/macro dual-scale arrays for rapid, spontaneous, continuous...

Hydrogen as a sustainable and clean energy source has attracted great attention with the increasing global crisis. However, sufficient production of hydrogen is seriously impeded by adhesion bubble to electrodes. Efficient removal bubbles attached electrode can improve efficiency evolution reaction. Following this concept, numerous approaches shorten time on electrodes have been presented, such ultrasonic treatment surface micro/nano‐modification. Almost all existing solutions are based...

Inkjet printing of water-based inks on superhydrophobic surfaces is important in high-resolution bioarray detection, chemical analysis, and high-performance electronic circuits devices. Obtaining uniform spreading a drop surface still challenge. Uniform round inkjet patterns are demonstrated without splash or rebound after high-speed impacting by introducing live-oligomeric surfactant adhesion. During impact, the molecules aggregate into dynamic, wormlike micelle networks, which jam at...

Abstract As one common form of gas existing in aqueous environment, bubbles have attracted considerable worldwide attention, owing to their promising applications industrial production and daily life, such as pressure sensors, the recovery valuable minerals from ores, aeration process, water treatment. Usually, behaviors environment are mainly dominated by buoyancy force. It drives out medium rapidly, which is unfavorable various processes, especially wastewater In this paper, types...

Liquid drops impacting on a solid surface is familiar phenomenon. On rainy days, it quite important for leaves to drain off raindrops. Water can bounce or flow down water-repellent leaf easily, but with difficulty hydrophilic leaf. Here, we show an interesting phenomenon in which the pitcher rim of Nepenthes alata spread outward prohibit water filling tank. We mimic peristome through designed 3D printing and replicating way report time-dependently switchable liquid transport based biomimetic...

Manipulating air bubbles in an aqueous medium exhibits both scientific and technologic value gas-collection, selective aeration, pollutant disposal. Superhydrophobic substrates, known as underwater superaerophilic offer numerous opportunities to develop advanced gas controlling systems, arising from its strong affinity water. Herein, we present a superhydrophobic helix that is able achieve controllable directional bubble delivery. In environment, the tends stay on summit of structure moves...

Abstract Crop production and quality safety system have the potential to nurture human health improve environmental sustainability. Providing a growing global population with sufficient healthy food is an immediate challenge. However, this largely depends on spraying of agrochemicals. leaves are covered different microstructures, exhibiting distinct hydrophilic, hydrophobic, or even superhydrophobic wetting characteristics, thus leading various deposition difficulties sprayed droplets. Here,...

Abstract Microdevices that manipulate fluids to transport in a predefined direction and switch flow directions under temperature stimuli are fundamental the intelligent control of biomedical devices, thermal managements, lab‐on‐a‐chip, etc. Despite current advances controlling drop transport, amplitude liquid motion is still limited with low speed, not well controlled because pinning contact lines on surface defects. Learning from nature, here, two bioinspired principles derived peristome...

Gradient meshes with Janus wettabilities are fabricated to stably separate and collect spilled oils from a range of flowing oily wastewater. Here, we demonstrate an overflow separation methodology, which combines selective oil membrane separation, low content dynamic oil–water mixtures by curved gradient mesh that covered on solid edge. The microscaled air–oil–water–solid four-phase wetting state during the process is visualized demonstrated. fundamental understanding this system superior...

To promote drop mobility, lubricating the gap between liquid and solid surface is a facile method which has been widely exploited by nature. Examples include lotus rice leaves using entrapped air to "lubricate" water Nepenthes pitcher plant slippery layer trap insects. Inspired these, here, we report strategy for transporting cargoes via unidirectional spreading of immiscible lubricants on peristome-mimetic surface. Oleophilic/hydrophobic surfaces were fabricated through replicating...

Abstract Irrigation is limited by water scarcity. Here, we show how a drip irrigation system inspired the leaf of fig tree Ficus religiosa (also known as bodhi tree) can improve efficiency. The reverse curvature regulates convergence process multiple streams, while its long-tail apex allows for fast drainage with droplet separation centroid beyond apex. We explain why frequency increases after break-up contact line pinning at tip using scaling laws volume and analyzing dynamics. build...

Abstract Microfluidics has experienced rapid progress in additive manufacturing and microfluidic soft robots. The design of microfluidics is already moving into a more intelligent, integrated, detachable direction. However, the pipeline resistance needs external energy input to achieve high flow speed. Guided transport liquid open‐air‐space will be an effective solution. Inspired by water shuttle on pitcher plant tendril, herein, open‐air device designed that consists superhydrophilic...

Inspired from <italic>Nepenthes alata</italic>, remaining wet and slippery by continuously spreading water, here, we report a general strategy for the uni-directional transport of liquids on peristome-mimetic surfaces one-dimensional linear trajectory to two-dimensional curve, even three-dimensional infinite space.

Abstract Separation of micro‐scaled water‐in‐oil droplets is important in environmental protection, bioassays, and saving functional inks. So far, bulk oil–water separation has been achieved by membrane sponge absorption, but micro‐drop still remains a challenge. Herein we report that instead the “plug‐and‐go” model, tiny can be separated into pure water oil through “go‐in‐opposite ways” on curved peristome‐mimetic surfaces, milliseconds, without energy input. More importantly, this overflow...