Lotus leaf inspired robust superhydrophobic coating from strawberry-like Janus particles

Yang, Haiyan; Liang, Fuxin; Chen, Ying; Wang, Qian; Qu, Xiaozhong; Yang, Zhenzhong

doi:10.1038/am.2015.33

Cited by 63 publications

(46 citation statements)

References 20 publications

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“…Recently, we presented a successful example of achieving a robust superhydrophobic coating by Janus particles (Fig. 26) [63]. First, the strawberry-like Janus particles are prepared by self-organized sol-gel process at a patchy interface.…”

Section: Strawberry-like Janus Particlesmentioning

confidence: 99%

Design, Synthesis, and Application of Anisotropic Janus Particles

Zhang¹,

Liang²,

Yang³

2017

Soft, Hard, and Hybrid Janus Structures

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Section: Strawberry-like Janus Particlesmentioning

confidence: 99%

Design, Synthesis, and Application of Anisotropic Janus Particles

Zhang¹,

Liang²,

Yang³

2017

Soft, Hard, and Hybrid Janus Structures

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“…Yang et al recently fabricated a colloidosome composed of Janus particles [58]. (Comment: The researchers named the structure a Janus colloidosome because the wettability of the 750 The European Physical Journal Special Topics Fig.…”

Section: Synthesis Of Patchy Colloidosomesmentioning

confidence: 99%

“…Janus commonly refers to objects whose surface (outer layer) has two distinct properties, such as particles, vesicles, and polymersomes. Thus, what Yang et al [58] presented is a colloidosome made of Janus colloidal particles. )…”

Section: Synthesis Of Patchy Colloidosomesmentioning

confidence: 99%

Patchy colloidosomes – an emerging class of structures

Rozynek

Józefczak

2016

Eur. Phys. J. Spec. Top.

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Abstract.A colloidosome, i.e., a selectively permeable capsule composed of colloidal particles forming a stable homogenous shell, is a tiny container that can be used for storage, transportation, and release of cargo species. There are many routes to preparing colloidosomes; dozens of examples of future applications of such colloidal capsules have been demonstrated. Their functionality can be further extended if the capsules are designed to have heterogeneous shells, i.e., one or more regions (patches) of a shell are composed of material with specific properties that differ from the rest of the shell. Such patchy colloidosomes, supplemented by functionalities similar to that offered by well-studied patchy particles, will surely possess advantageous properties when compared with their homogenous counterparts. For example, owing to specific interactions between patches, they either can self-assemble into complex structures; specifically adhere to a surface; release their cargo species in specific direction; or guided-align,-orient or -propel. Fabrication of patchy colloidal microcapsules has long been theorized by scientists able to design different models, but actual large-scale production remains a challenge. Until now, only a few methods for fabricating patchy colloidosomes have been demonstrated, and these include production by means of microfluidics and mechanical pipetting. The field of science related to fabrication and application of patchy colloidosomes is clearly unexplored, and we envision it blooming in the coming years.

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“…As demonstrated, for example, by the work of Ikkala, a hydrophobic interface can be designed by using silanes that chemically bind to the hydroxyl groups at the surface of cotton fibers. Control wetting through silane‐based coatings has been a broad area of research since silanes represent a facile way to modulate the interfacial properties of surfaces . Additionally, the utilization of poly(dimethylsiloxane) (PDMS) in combination with silica particles on cellulose fibers has yielded some promising results in regard to mechanically stable coatings, a challenge that still faces a number of micro/nanostructured surfaces .…”

Section: Introductionmentioning

confidence: 99%

Janus‐Type Hybrid Paper Membranes

Nau

Herzog

Schmidt

et al. 2019

Adv Materials Inter

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asymmetric chemical properties, both in bulk and in surface-confined coatings. [1][2][3][4][5] Referencing their two-faced nature, such asymmetric material properties are often named after the Roman god Janus. In particular, the behavior of membranes, particles, rods, or micelles with two orthogonal sides shows high potential for different applications, such as oil/water separation, droplet manipulation, fog collection, unidirectional water flow design, bubble aeration, ion gating, and energy harvesting. [6][7][8][9][10][11][12] In particular, asymmetrically designed membranes show strong potential for improved transport design and thus improved application performance. Directed oil-water transport in the context of oil-water separation and directed gas-water transport in the context of fuel cell gas diffusion layers are two specific application examples. [13,14] Therefore, enhancing control of material design and reducing the amount of material needed to achieve asymmetric material characteristics such as wettability are still an ongoing challenge. To make this situation even more stimulating, applying biocompatible and degradable materials while retaining needed stability and doing this in simple, ideally single-step, scalable fabrication processes are of increasing demand.Janus materials in general are well known since the Nobel Prize lecture of de Gennes in 1991, but they were first mentioned in 1898 by the group of Veyssié. [15,16] The general definition of Janus materials is diverse and includes all materials with asymmetric surfaces as well as composite bulk materials. In 2016, the group of Xu reshaped the definition of materials having opposing properties at two respective interfaces and proposed three configurations of so-called Janus membranes. [5] One is the "A to B"-type material, which shows a physical and/or chemical gradient across a membrane cross-section. Alternatively, A-to-B or A-and B-type Janus membranes are defined as having a clear interface between the layers. Within the last few years, the Jiang group developed a coating and peeling strategy for the facile preparation of multifunctional Janus membranes based on synthetic polymers such as polyethylene terephthalate (PET)/polytetrafluoroethylene (PTFE). [1] After membrane modification by tannic acid (TA) and diethylenetriamine to form a hydrophilic coating on the surface, peeling off the top PTFE layer from the hydrophilic membrane results in a Janus membrane showing unidirectional water permeation properties at Functional paper-based materials and devices have been increasingly attractive to scientists in the recent past. In particular, the possibility to functionalize the surface of paper fibers with tailor-made coatings has broadened a possible scope of emerging application considerably. This work introduces novel functional paper membranes with adjustable gradient and Janus-type wettability based on gradient and Janus-type silica coating distribution along the paper cross-section. Correlation of CLSM (distribution), thermogravimetric an...

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Lotus leaf inspired robust superhydrophobic coating from strawberry-like Janus particles

Cited by 63 publications

References 20 publications

Design, Synthesis, and Application of Anisotropic Janus Particles

Design, Synthesis, and Application of Anisotropic Janus Particles

Patchy colloidosomes – an emerging class of structures

Janus‐Type Hybrid Paper Membranes

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