Superhydrophobic/Superhydrophilic Janus Fabrics Reducing Blood Loss

Zhu, Tiejun; Wu, Junrong; Zhao, Ning; Cai, Chao; Qian, Zhenchao; Si, Fangfang; Luo, Hui; Guo, Jing; Lai, Xuan; Shao, Longquan; Xu, Jie

doi:10.1002/adhm.201701086

Cited by 113 publications

(93 citation statements)

References 37 publications

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“…Lubricant‐infused liquid‐repellency slippery surfaces possess outstanding antifouling properties that prevent adhesion of proteins, bacteria, cells, and marine organisms . Thus, liquid‐repelling surfaces have wide ranging applications in various fields such as textiles, water collection, corrosion control, chemical shielding, and environmental protection .…”

Section: Applicationsmentioning

confidence: 99%

Bioinspired Superwettability Micro/Nanoarchitectures: Fabrications and Applications

Kong

Luo

Zhao

et al. 2019

Adv Funct Materials

150

104

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Biological systems have evolved over billions of years to develop wetting strategies for advantageous structure-property-performance relations that are crucial for their survival. The discovery of these intriguing relationships has inspired tremendous efforts to investigate the micro/nanoscale features of naturally occurring structures with superwettability. Researchers have since developed new methods and techniques to construct artificial materials that mimic natural structures and functionalities. Here, a brief review of natural hierarchical architectures with liquid repellent properties is presented, and the critical underlying mechanism is summarized with an emphasis on the micro/nanoscopic architectures. The state-of-the-art micro/nanofabrication techniques for creating bioinspired hierarchical superwettability structures that are categorized by random and exquisite features are also reviewed, followed by an overview of their emerging applications, with special attention to biomedical-related fields. The development of fabrication techniques enhances capabilities relative to those of living systems, paving the way toward advanced structural materials with superior functions and unprecedented characteristics for potential applications. Figure 1. Natural superwettable surfaces. Scanning electronic microscopy (SEM) images demonstrate the surface micro/nanostructures of a) lotus leaf, [4] b) Salvinia molesta, [115] c) cicada wings, [109] d) mosquito eye, [37] e) cactus spines, [110] f) desert beetle, [2] g) water strider, [5] h) springtail skin, [145] and i) pitcher plant. [50] The examples represent a range of different intelligent surfaces that exist in nature. Reproduced with permission. [4]

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Section: Applicationsmentioning

confidence: 99%

Bioinspired Superwettability Micro/Nanoarchitectures: Fabrications and Applications

Kong

Luo

Zhao

et al. 2019

Adv Funct Materials

150

104

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“…In this way, the modification depth could be controlled to some extent via the deposition time. [ 49 ] The modifiers used for the single‐side interface‐confined modification include dopamine, [ 49–59 ] hydroxyapatite, [ 60 ] catechol, [ 61 ] starch paste, [ 62 ] KOH solution, [ 63,64 ] 1H,1H,2H,2H‐perfluorodecyltriethoxysilane, [ 65 ] octadecylamine, [ 66 ] fluoropolymer emulsion foam, [ 67 ] paraffin, [ 68 ] polydimethylsiloxane, [ 69 ] and TiO 2 nanoparticle slurry. [ 70 ] Note that the prerequisite of this method is that the membrane surface should be nonwettable to the modifier solution for ensuring a nonuniform modification.…”

Section: Asymmetric Surface Construction and Regulation For Janus Memmentioning

confidence: 99%

“…[ 70 ] Note that the prerequisite of this method is that the membrane surface should be nonwettable to the modifier solution for ensuring a nonuniform modification. [ 49–70 ] It is thus not suitable for the wettable system because the modification solution would easily penetrate through membrane pores due to capillary effect, leading to an indiscriminate decoration on both sides. This substrate‐dependent issue could be addressed to some extent through the single‐side spraying technique.…”

Section: Asymmetric Surface Construction and Regulation For Janus Memmentioning

confidence: 99%

“…[ 64 ] Meanwhile, the capillary resistance provided by the superhydrophobic layer prevents blood from flowing out of the membrane (Figure 5f). [ 68,71 ] To synchronously stop bleeding rapidly and prevent blood outflowing, it is expected to balance the layer thickness configuration in the preparation of Janus membranes.…”

Section: Asymmetric Surface Engineering Of Janus Membranes For Targetmentioning

confidence: 99%

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Asymmetric Surface Engineering for Janus Membranes

Yang

2020

Adv Materials Inter

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Emerging Janus membranes, named after the ancient Roman god with two faces to better survey both the past and the future, are appealing materials to tackle this challenge. They possess opposing chemicophysical properties on two sides for achieving a breakthrough in their performances. [12] The opposite surface properties usually include asymmetric wettability and charge but not limited to them. [13] Janus membranes with asymmetric wettable surfaces have received most of the attention in diverse research fields for a wide variety of applications because of their distinctive mass (e.g., liquid or gas) transport behaviors in two-phase or multiphase systems. Such unique fluid transportation relies on the cooperative effect arisen from the asymmetric wettability in the direction of membrane thickness. [14] Therefore, how to create and regulate asymmetry is a core task in the preparation of Janus membranes.Surface engineering, a process for modifying the surface of a material, provides a powerful toolbox to enhance and optimize the performance of the material, especially for porous membranes with large internal surface area. A myriad of modification methods including surface coating, grafting, and self-assembling have been developed to regulate membrane surface properties which are usually uniform in the spatial distribution. As distinguished from ordinary surface treatments, asymmetric surface engineering aims to accurately control the uneven distribution of surface properties or functionalities in the direction of membrane thickness, being an effective means for the preparation of Janus membranes.Benefiting from the asymmetric surface engineering, the researches on Janus membranes have mushroomed in recent years. Hundreds of literatures have explored the possibilities for Janus membranes to substitute traditional ones for achieving enhanced performances in the mass transfer between two phases, including water−oil, water−gas, and oil−gas systems. Some researchers have reviewed the research progresses on Janus membranes from different perspectives. Our previous review has discussed the definition and fabrication of Janus membranes and summarized their applications in the field of environmental science. [13] Another two reviews, presented by Zhao et al. [14] and Zhou et al., [15] have described the distinctive unidirectional fluid transport phenomenon of Janus membranes and their functional applications. Besides, a recent review has detailed the potential of Janus configuration in terms of enhancing energy efficiency in membrane processes. [12] However, the vital role of asymmetric surface engineering in the construction of asymmetric configurations, the modulation of surface properties, and the implementation of ultimate applications has not been addressed. Herein, Janus membranes show great promise toward various applications and are undergoing a fast-paced development in materials science. The asymmetric surface engineering on surface wettability, layer thickness, and pore structure enables Janus membranes with super...

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“…[137] In this regard, many researchers engineered bilayer wound dressing integrating W&B nanofibrous membranes with hydrophilic material to obtain optimal breathability. [138,139] Yang et al [140] fabricated composite dressings via electrospinning PS nanofibers on spacer fabric substrate. The upper PS nanofibrous membranes exhibited good water resistance with a water contact angle over 135° and high WVTR to remain ventilation, keeping the wound from getting macerated or infected.…”

Section: Wound Dressing Materialsmentioning

confidence: 99%

Waterproof and Breathable Electrospun Nanofibrous Membranes

et al. 2019

Macromol. Rapid Commun.

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Waterproof and breathable (W&B) membranes combine fascinating properties of resistance to liquid water penetration and transmitting of water vapor, playing a key role in addressing problems related to health, resources, and energy. Electrospinning is an efficient and advanced way to construct nanofibrous materials with easily tailored wettability and adjustable pore structure, therefore providing an ideal strategy for constructing W&B membranes. In this review, recent progress on electrospun W&B membranes is summarized, involving materials design and fabrication, basic properties of electrospun W&B membranes associated with waterproofness and breathability, as well as their applications. In addition, challenges and future trends of electrospun W&B membranes are discussed.

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Superhydrophobic/Superhydrophilic Janus Fabrics Reducing Blood Loss

Cited by 113 publications

References 37 publications

Bioinspired Superwettability Micro/Nanoarchitectures: Fabrications and Applications

Bioinspired Superwettability Micro/Nanoarchitectures: Fabrications and Applications

Asymmetric Surface Engineering for Janus Membranes

Waterproof and Breathable Electrospun Nanofibrous Membranes

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