Light-Induced Dynamic Manipulation of Liquid Metal Droplets in the Ambient Atmosphere

Tan, Shengda; Han, Xiao; Sun, Yue; Guo, Pu; Sun, Xu; Chai, Ziyuan; Jiang, Lei; Heng, Liping

doi:10.1021/acsnano.4c00690

Cited by 8 publications

(1 citation statement)

References 58 publications

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“…In recent years, superhydrophobic surfaces have aroused strong interest from various industries as a result of their potential applications in self-cleaning,, drag reduction,, oil–water separation,, anti-icing, − antifouling and anticorrosion,, biomedical engineering,, and liquid transportation. − To achieve these functions of the material, the key is to adjust the surface adhesion.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Wettability Analysis of Metal Biofunctional Surfaces Based on the Microquadrangular Structure

Yang,

Zhang,

Zhai

et al. 2024

Langmuir

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Improving the hydrophobic properties of aluminum alloys is crucial for industry. In previous reports, researchers prepared superhydrophobic surfaces by fabricating micro−nanostructures on the metal surface with a nanosecond laser. However, no researchers have formed microquadrangular groove structures on the metal surface. In this article, inspired by the bamboo leaf, a microquadrangular structure is designed and processed using nanosecond laser technology to form a superhydrophobic functional surface. The effects of laser processing parameters, such as laser power, scanning speed, scanning time, defocus and fill spacing on the size, surface morphology features, and wettability of the microquadrangular structure, are investigated by a single-factor experimental method. The experimental results show the optimal size of the processed microquadrangular structure obtained from the experiment with an error of 1.28% from the design size, where the fill spacing has the greatest effect on the size and the scanning time, defocus, and fill spacing have great influence on the surface morphology. The contact angle of water drops on the surface can reach 154.7°, and the power has the greatest influence on the wettability. Laser parameters have distinct effects on the properties of the materials. Therefore, by regulation of the laser parameters, the formation of the microstructure can be availably controlled and the result of hydrophobicity can be achieved.

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Section: Introductionmentioning

confidence: 99%

Preparation and Wettability Analysis of Metal Biofunctional Surfaces Based on the Microquadrangular Structure

Yang,

Zhang,

Zhai

et al. 2024

Langmuir

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Giant Decrease in Interfacial Energy of Liquid Metals by Native Oxides

Jung,

Vong,

Kwon

et al. 2024

Advanced Materials

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Native oxides form on the surface of many metals. Here, using gallium‐based liquid metal alloys, Johnson‐Kendall‐Roberts (JKR) measurements are employed to show that native oxide dramatically lower the tension of the metal interface from 724 to 10 mN m−1. Like conventional surfactants, the oxide has asymmetry between the composition of its internal and external interfaces. Yet, in comparison to conventional surfactants, oxides are an order of magnitude more effective at lowering tension and do not need to be added externally to the liquid (i.e., oxides form naturally on metals). This surfactant‐like asymmetry explains the adhesion of oxide‐coated metals to surfaces. The resulting low interfacial energy between the metal and the interior of the oxide helps stabilize non‐spherical liquid metal structures. In addition, at small enough macroscopic contact angles, the finite tension of the liquid within the oxide can drive fluid instabilities that are useful for separating the oxide from the metal to form oxide‐encased bubbles or deposit thin oxide films (1–5 nm) on surfaces. Since oxides form on many metals, this work can have implications for a wide range of metals and metal oxides in addition to explaining the physical behavior of liquid metal.

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Lignocellulose‐Mediated Functionalization of Liquid Metals toward the Frontiers of Multifunctional Materials

Li,

Zhu,

et al. 2024

Advanced Materials

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Lignocellulose‐mediated liquid metal (LM) composites, as emerging functional materials, show tremendous potential for a variety of applications. The abundant hydroxyl, carboxyl, and other polar groups in lignocellulose facilitate the formation of strong chemical bonds with LM surfaces, enhancing wettability and adhesion for improved interface compatibility. Beyond serving as a supportive matrix, lignocellulose can be tailored to optimize the microstructure of the composites, adapting them for diverse applications. This review comprehensively summarizes the fundamental principles and recent advancements in lignocellulose‐mediated LM composites, highlighting the advantages of lignocellulose in composite fabrication, including facile synthesis, versatile interactions, and inherent functionalities. Key modulation strategies for LMs and innovative synthesis methods for functionalized lignocellulose composites are discussed. Furthermore, the roles and structure–performance relationships of these composites in electromagnetic shielding, flexible sensors, and energy storage devices are systematically summarized. Finally, the obstacles and prospective advancements pertaining to lignocellulose‐mediated LM composites are thoroughly scrutinized and deliberated upon. This review is expected to provide basic guidance for researchers to boost the popularity of LMs in diverse applications and provide useful references for design strategies of state‐of‐the‐art LMs.

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Light-Induced Dynamic Manipulation of Liquid Metal Droplets in the Ambient Atmosphere

Cited by 8 publications

References 58 publications

Preparation and Wettability Analysis of Metal Biofunctional Surfaces Based on the Microquadrangular Structure

Preparation and Wettability Analysis of Metal Biofunctional Surfaces Based on the Microquadrangular Structure

Giant Decrease in Interfacial Energy of Liquid Metals by Native Oxides

Lignocellulose‐Mediated Functionalization of Liquid Metals toward the Frontiers of Multifunctional Materials

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