Published: Aug. 7, 2024
Language: Английский
Advanced Materials, Journal Year: 2022, Volume and Issue: 35(9)
Published: Nov. 25, 2022
Conventional engineered surfaces for fluid manipulation are hindered by the set wettability, and thus they can only achieve spontaneous transport of single-phase fluid, namely liquid or gas. Moreover, systems that robust to path defects have yet be fully explored. Here, unprecedentedly, a universal wettability switching strategy is developed achieving programmable directional both droplets subaqueous bubbles on dumbbell-patterned functional surface (DPFS), featuring in strong robustness, high efficiency, effective cost. By tuning superwettability DPFS through octadecyltrichlorosilane treatment ultraviolet-C selective irradiation, alternate between The material's switchable regulates directed dynamics within confined pattern, which sustaining propelling relies energy difference starting terminal sites. This enables construction multiple channels, works synergistically with ultralow-volume-loss impart fluidic system robustness against defects. Underlying completion complex microfluidics tasks, spatially-selective cooling devices gas microreactors successfully demonstrated. energy-consumption-free opens new avenue on-chip manipulation, promoting innovative applications requiring rational control two-phase transport.
Language: Английский
Citations
22
Applied Sciences, Journal Year: 2023, Volume and Issue: 13(17), P. 9961 - 9961
Published: Sept. 3, 2023
The spontaneous directional transportation (SDT) of water and gas has functions such as efficient collection, enhanced heat transfer, underwater drag reduction, so on, having great application prospects in aerospace navigation fields. Therefore, it is important to efficiently prepare droplet (SDWT) surfaces bubble (SDBT) apply them different In recent years, researchers have used biological structures the basis for their studies continued analyze SDT transport mechanism depth, aiming find more methods. this review, we first summarize basic theories related fluid transportation. Then, methods limitations corresponding SDWT SDBT are introduced discussed. addition, review applications SDBT. Finally, highlight challenges future perspectives
Language: Английский
Citations
11
Advanced Science, Journal Year: 2024, Volume and Issue: 11(39)
Published: Aug. 13, 2024
Developing effective electrocatalysts for the nitrate reduction reaction (NO
Language: Английский
Citations
4
Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(4)
Published: Jan. 27, 2025
Droplet manipulation on open surfaces plays a key role in numerous applications. The enhancement controllability, flexibility, and simplicity of droplet is sustainably demanded developed. Herein, we create unique method by modulating wettability based surface charges. With contactless charge deposition tilting dielectric with the corona discharge generated needle-plate electrodes, sliding can be actuated real time. Droplets show after eliminating deposition, which contact angle decreases reach up to ∼20°. presented surface-charge-modulated results fast-speed (∼14 mm/s) high-volume-range (10–80 μL) manipulation. Experiments theoretical analysis reveal underlying mechanism actuation gradients, induce asymmetric electrostatic forces. Controlling distributions plate-electrode patterns, programmable, reconfigurable along complex pathways achieved. Moreover, value for controlling stepwise chemical reactions demonstrated moving plate electrodes.
Language: Английский
Citations
0
ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown
Published: May 1, 2025
Language: Английский
Citations
0
Materials Horizons, Journal Year: 2023, Volume and Issue: 10(6), P. 2204 - 2214
Published: Jan. 1, 2023
Counterfeit products have posed a significant threat to consumers safety and the global economy. To address this issue, extensive studies been exploring use of coatings with unclonable, microscale features for authentication purposes. However, ease readout, stability these against water, deposited dust, wear, which are required practical use, remain challenging. Here we report novel class chemically functionalizable combination physically unclonable porous topography distinct physiochemical properties (e.g., fluorescence, water wettability, adhesion) obtained through orthogonal chemical modifications (i.e., 1,4-conjugate addition reaction Schiff-base at ambient conditions). Unprecedentedly, self-cleanable coating is introduced develop multilevel anticounterfeiting interface. We demonstrate that fluorescent can be verified using deep learning. More importantly, spatially selective read naked eye via underwater exposure UV light illumination. Overall, results reported in work provide facile basis designing functional surfaces capable independent decryption authenticity.
Language: Английский
Citations
9
Small Methods, Journal Year: 2024, Volume and Issue: unknown
Published: March 1, 2024
Abstract Micro and nanopatterned surfaces hold potential for various applications, such as wettability control, antibiofouling, optical components. However, conventional patterning processes are characterized by complexity, high costs, environmental burdens because of the use resists. Therefore, this paper proposes facile ultrafast electrochemical imprinting employing a polymer electrolyte membrane (PEM) stamp achieving micro nanoscale on Si surfaces. The solid‐state process efficiently generates oxide hydrated (Si–OH) patterns within several seconds at room temperature in dry ambient environment. formed pattern can be employed an etching mask to prepare diffraction gratings with diverse high‐resolution (≈100 nm) utilizing PEM stamp. resulting surface exhibits instantaneous structural coloration upon exposure humid air, attributable formation water microdroplet array pattern. is successfully applied dynamic grating letter encryption. proposed oxidation scheme based stamp, which eliminates need liquid resist, represents simple time cost few seconds, low processing costs impact.
Language: Английский
Citations
2
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: July 11, 2024
Abstract Bio-inspired surfaces with wettability patterns display a unique ability for liquid manipulations. Sacrificing anti-wetting property confining liquids irrespective of their surface tension (γ LV ), remains widely accepted basis developing patterns. In contrast, we introduce ‘liquid-specific’ pattern through selectively sacrificing the slippery against only low γ (<30 mN m −1 ) liquids. This design includes chemically reactive crystalline network phase-transitioning polymer, which displays an effortless sliding both and high Upon its strategic chemical modification, droplets fail to slide, rather spill arbitrarily on tilted interface. continue slide same modified Interestingly, phase–transition driven rearrangement allows revert Here, report ‘rewritable’ throughput screening, separating, remoulding non-aqueous
Language: Английский
Citations
2
Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 48, P. 104359 - 104359
Published: April 14, 2024
Language: Английский
Citations
1
Carbon, Journal Year: 2024, Volume and Issue: 228, P. 119373 - 119373
Published: June 21, 2024
Language: Английский
Citations
1