Droplet interface in additive manufacturing: From process to application

Sun, Zhengnan; Xu, Zhiai; Deng, Xu; Zhang, Xiaosheng; Zhang, Yi

doi:10.1002/dro2.57

Cited by 7 publications

(1 citation statement)

References 132 publications

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“…Wetting of liquids on solid surfaces is a common phenomenon in nature [41][42][43]. The main factors affecting the wettability of a solid surface are its chemical composition and roughness [44][45][46]. With the development of technology over the past decades, the wettability of a solid surface has been studied extensively.…”

Section: Interface and Theory For The Wettabilitymentioning

confidence: 99%

Functional microfluidics: theory, microfabrication, and applications

Xie,

Zhan,

et al. 2024

Int. J. Extrem. Manuf.

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Microfluidic devices are composed of microchannels with a diameter ranging in ten to a few hundred micrometers. Thus, quite small (10-9 to 10-18 litres) amount of liquid can be manipulated by such a precise system. In the past three decades, significant progresses in materials, microfabrication, and various applications have boosted the development of promising functional microfluidic devices. In this review, the recent progresses on novel microfluidic devices with various functions and applications are presented. First, the theory and numerical methods for studying the performance of microfluidic devices are briefly introduced. Then, materials, and fabrication methods of functional microfluidic devices are summarized. Next, from the viewpoint of the applications of the microfluidic devices, the recent significant advances in heat sink, clean water production, chemical reactions, sensor, biomedical field, capillaric circuits, flexible and wearable electronic devices, microrobotics, etc., in turns are then highlighted. Finally, personal perspectives on the challenges and future developments of functional microfluidic devices, aiming to motivate researchers from the fields of engineering, materials, chemistry, mathematics, physics, etc. working together to promote further development and applications of functional microfluidic devices, for the specific purpose of carbon neutrality are provided.

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Section: Interface and Theory For The Wettabilitymentioning

confidence: 99%

Functional microfluidics: theory, microfabrication, and applications

Xie,

Zhan,

et al. 2024

Int. J. Extrem. Manuf.

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Bioinspired Superhydrophobic Cellular Origami Exhibiting Improved and Multifunctional Floatability

Bai,

Li,

Wang

et al. 2024

Adv Funct Materials

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Interfacial floater possessing an open surface diversifies the functions of current systems in the field of solar evaporation, micro‐detector, multiphase catalysis, etc. However, most of the current floaters still face challenges such as the anti‐submersion, orientation adjusting, and multifunctional capabilities. Drawing inspiration from water striders and diving bell spiders, here a superhydrophobic cellular origami (SCO) is proposed with reliable stability, submerge resistance, switchable floatability, and multifunctional integration. The remarkable floating ability is achieved through the air storage ability of superhydrophobic air cells. SCO floats stably on the water surface and has a maximum load capacity that is 48% higher than the superhydrophobic sheet. Besides, SCO can resurface rapidly after complete submersion, even using titanium metal as substrate. To further enhance the universality of SCO, the Janus SCO with unbalanced structure can float with a specific orientation facing up and the origami structure is optimized to be switchable with hinge structure for adjustable buoyancy. To prove the concept in 3D structure, a cylindrical SCO is presented for cable locating on the water surface. This study presents an achievable strategy to extend superhydrophobic surfaces into anti‐sinking floaters, offering valuable insights into the development of multifunctional interface carriers.

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Quantitative liquid storage by billiards‐like droplet collision on surfaces with patterned wettability

Li,

Yu,

Liu

et al. 2024

Droplet

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There has been significant interest in researching droplet transport behavior on composite wetting surfaces. However, current research is primarily focused on modifying individual droplets and lacks an in‐depth investigation into high‐precision droplet storage. This study introduces a “billiard ball” droplet transport and storage platform (TSP) with differentiated areas. Within this platform, the volume of droplets stored in the area reaches a consistent threshold through droplet “scrambling,” inspired by the water‐gathering behavior of spiders. The TSP involves connecting two regions of different sizes using a three‐dimensional stepped wedge angle structure. However, this connection is not seamless, leaving a 2‐mm gap between the regions. This gap is intentionally designed to enable continuous droplet transfer while preventing any static migration. Through systematic experimental and simulation analysis, we investigated the influence of superhydrophilic pattern structures and parameters on quantitative droplet storage. We established a functional relationship between the pattern area and the stored volume, and analyzed the intrinsic mechanism of droplet collision separation. This enabled us to achieve on‐demand quantitative droplet storage and autonomize the storage process. The “billiard ball” droplet transport–storage platform proposed in this study holds promising applications in the fields of biomedical and organic chemistry.

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Droplet interface in additive manufacturing: From process to application

Cited by 7 publications

References 132 publications

Functional microfluidics: theory, microfabrication, and applications

Functional microfluidics: theory, microfabrication, and applications

Bioinspired Superhydrophobic Cellular Origami Exhibiting Improved and Multifunctional Floatability

Quantitative liquid storage by billiards‐like droplet collision on surfaces with patterned wettability

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