Journal Article10.1002/SMLL.202102579
Emulsion Designer Using Microfluidic Three-Dimensional Droplet Printing in Droplet
Li Chen,Li Chen,Yao Xiao,Qinglin Wu,Xiaoxiao Yan,Peng Zhao,Jian Ruan,Jianzhen Shan,Dong Chen,David A. Weitz,Fangfu Ye +10 more
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TL;DR: In this article, the dragonfly laying eggs is used as a template for hierarchical emulsions and 3D droplet printing in droplet is used for the development of functional materials.
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Abstract: Hierarchical emulsions are interesting for both scientific researches and practical applications. Hierarchical emulsions prepared by microfluidics require complicated device geometry and delicate control of flow rates. Here, a versatile method is developed to design hierarchical emulsions using microfluidic 3D droplet printing in droplet. The process of droplet printing in droplet mimics the dragonfly laying eggs and has advantages of easy processing and flexible design. To demonstrate the capability of the method, double emulsions and triple emulsions with tunable core number, core size, and core composition are prepared. The hierarchical emulsions are excellent templates for the developments of functional materials. Flattened crescent-moon-shaped particles are then fabricated using double emulsions printed in confined 2D space as templates. The particles are excellent delivery vehicles for 2D interfaces, which can load and transport cargos through a well-defined trajectory under external magnetic steering. Microfluidic 3D droplet printing in droplet provides a powerful platform with improved simplicity and flexibility for the design of hierarchical emulsions and functional materials.
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Citations
Millifluidics, microfluidics, and nanofluidics: manipulating fluids at varying length scales
L. Chen,L. Chen,Chenjing Yang,Yao Xiao,Xiaoxiao Yan,L. Hu,M. Eggersdorfer,Dong Chen,D.A. Weitz,F. Ye +9 more
TL;DR: In this paper, the major physics associated with flow properties and interactions of millifluidics, microfluidics and nanofluids are discussed in detail, especially the differences arising from different length scales.
88
PDMS Microfabrication and Design for Microfluidics and Sustainable Energy Application: Review.
Lin Lin,Chen-Kuei Chung +1 more
TL;DR: The polydimethylsiloxane (PDMS) is used for wide application in various fields of microfluidics, microneedles, biology, medicine, chemistry, optics, electronics, architecture, and emerging sustainable energy due to the intrinsic non-toxic, transparent, flexible, stretchable, biocompatible, hydrophobic, insulating, and negative triboelectric properties that meet different requirements.
51
Surface Adaptive Capillarity Enabling Densified 3D Printing for Ultra-High Areal and Volumetric Energy Density Supercapacitors.
Xiaolong Li,Shangwen Ling,Wanqiu Cao,Li Zeng,Ruoxin Yuan,Chuhong Zhang +5 more
TL;DR: In this article , a symmetric supercapacitor with pyrrole surface-modified reduced graphene oxide was proposed for 3D printed energy storage devices, which achieved a double leap in areal and volumetric energy densities in both aqueous and organic electrolytes.
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Structured Ultra-Flyweight Aerogels by Interfacial Complexation: Self-Assembly Enabling Multiscale Designs.
Milad Kamkar,Ahmadreza Ghaffarkhah,Rubina Ajdary,Yi Lu,Farhad Ahmadijokani,Sameer Mhatre,Elnaz Erfanian,Uttandaraman Sundararaj,Mohammad Arjmand,Orlando J. Rojas +9 more
TL;DR: The Liquid Streaming (LS) approach as mentioned in this paper is a microfluidic approach that enables interfacial complexation of two-phase systems, termed as "liquid streaming" (LS), which is demonstrated as a general method to design multifunctional soft materials of specific hierarchical order and morphology.
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