Bioinspired Dynamic Wetting on Multiple Fibers

Wang, Pengwei; Bian, Ruixin; Meng, Qing; Liu, Huan; Jiang, Lei

doi:10.1002/adma.201703042

Cited by 46 publications

(35 citation statements)

References 65 publications

(63 reference statements)

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“…Sci. 2020, 7,1902403 , and 4D microwell arrays with 800 × 800 µm well size (scale bar, 5 mm). c) Shape transformation process from microwell to flat with the sample having an 800 × 800 µm well size.…”

Section: Fabrication Of 4d Culture Neural Substrate and Dynamic Axon mentioning

confidence: 99%

“…Sci. 2020, 7,1902403 physical cues that lead to enhanced neural differentiation of NSCs along with significant axonal alignment.…”

Section: Fabrication Of 4d Culture Neural Substrate and Dynamic Axon mentioning

confidence: 99%

“…However, most efforts are centered on static patterns. [6,7] Inspired by dynamic, tissue-specific microenvironments in vivo, the use of dynamic cell culture platforms to create synthetic microenvironments in vitro has become an attractive means to direct active changes in cellular functionality and to replicate the dynamic complexity of native tissues. [8,9,10] Several stimuli-responsive methods, including applied electrical and magnetic fields, changes in pH and temperature, introduction of light and enzymes, have been applied to modulate the physicochemical properties of culture substrates.…”

Section: Introductionmentioning

confidence: 99%

“…[16] 3D cell aggregates can closely resemble the native configuration of NSCs in vivo, which allows for direct cell-cell signaling and cell-matrix interactions when compared to 2D culture substrates or 3D scaffolds. [7,18] Several studies have induced NSC aggregation using a cell spheroid technique. However, the generation of conventional cell spheroids typically involves a complicated culturing process, which has been criticized for being sensitive to cell culture conditions, and often results in inconsistently differentiated cells, even between experimental trials.…”

Section: Introductionmentioning

confidence: 99%

“…Sci. 2020, 7,1902403 Figure 1. Schematic illustration of the fabrication procedure of a novel smart 4D neural substrate or scaffold with a time-dependent topographic transformation, which is used to provide a new platform for modulating desired extracellular microenvironments for NSCs development at different differentiation stages (from NSC aggregation at an early stage to highly aligned micropatterns).…”

Section: Introductionmentioning

confidence: 99%

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4D Self‐Morphing Culture Substrate for Modulating Cell Differentiation

et al. 2020

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As the most versatile and promising cell source, stem cells have been studied in regenerative medicine for two decades. Currently available culturing techniques utilize a 2D or 3D microenvironment for supporting the growth and proliferation of stem cells. However, these culture systems fail to fully reflect the supportive biological environment in which stem cells reside in vivo, which contain dynamic biophysical growth cues. Herein, a 4D programmable culture substrate with a self‐morphing capability is presented as a means to enhance dynamic cell growth and induce differentiation of stem cells. To function as a model system, a 4D neural culture substrate is fabricated using a combination of printing and imprinting techniques keyed to the different biological features of neural stem cells (NSCs) at different differentiation stages. Results show the 4D culture substrate demonstrates a time‐dependent self‐morphing process that plays an essential role in regulating NSC behaviors in a spatiotemporal manner and enhances neural differentiation of NSCs along with significant axonal alignment. This study of a customized, dynamic substrate revolutionizes current stem cell therapies, and can further have a far‐reaching impact on improving tissue regeneration and mimicking specific disease progression, as well as other impacts on materials and life science research.

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Section: Fabrication Of 4d Culture Neural Substrate and Dynamic Axon mentioning

confidence: 99%

“…Sci. 2020, 7,1902403 physical cues that lead to enhanced neural differentiation of NSCs along with significant axonal alignment.…”

Section: Fabrication Of 4d Culture Neural Substrate and Dynamic Axon mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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4D Self‐Morphing Culture Substrate for Modulating Cell Differentiation

et al. 2020

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Enhanced Liquid Propagation and Wicking Along Nanostructured Porous Surfaces

Alhosani

Alketbi

et al. 2021

Adv Eng Mater

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The crucial role of capillary pumping has motivated recent innovations in porous wicking materials for many energy and environment applications. Herein, the wick‐based liquid propagation along with a porous surface, including both macroscopic water transport behavior and microscopic wicking dynamics, with a group of nanostructured porous surfaces, is investigated. These hybrid wicking surfaces are fabricated in a scalable way by bonding copper micromeshes on flat surfaces and chemical etching. These nanostructured porous surfaces exhibit outstanding wickability by simultaneously improving surface hydrophilicity and minimizing viscous dissipation of water flow. Notably, the as‐fabricated surfaces also have good thermal conductivity and high solar absorptance, which are desired properties for various solar thermal applications. To directly observe water propagation processes, infrared thermal imaging in locating the propagation front and evaluating water film thickness along the propagation direction is also demonstrated. The dynamic water vapor meniscus in a representative pore unit is captured and characterized through environmental scanning electron microscopy. A capillary pressure model and permeability model to predict the liquid propagation and wicking characteristics is then developed, resulting in good agreement with experimental results for a large variety of nanostructured porous surfaces.

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The Flexible Conical Lamella: A Bio‐Inspired Open System for the Controllable Liquid Manipulation

Wang

et al. 2018

Adv Funct Materials

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Petals of the hydrophytic daisy, as a typical conical lamellar organ, enable the air trapping by forming a cavity‐like structure during times of flooding for protecting their genetic materials, which serves as an essential strategy to resist the harsh environment. Inspired by the air capturing of hydrophobic petals, a series of hydrophilic flexible conical polyethylene lamellae (FCL‐PE) with different apex angles are developed for controllable liquid manipulation: the smaller apex angle, the higher efficiency, and stability for liquid manipulation. Specifically, the FCL‐PE system could manipulate over 19 times its own mass of liquid when the apex angle is ≈14°, which remains rather stable even under external pressure. The highly efficient liquid manipulation of the FCL‐PE is attributable to the synergistic effects of the Laplace pressure difference generated by the topological asymmetric conical structure and the capillary–induced liquid spreading by the precursor film on the planar lamella. In addition, the wrinkle‐like nanostructures on the surface of FCL‐PE are helpful for the pinning of three–phase contact line when interacting with liquid. Here, an alternative open system of FCL‐PE is provided for the controllable liquid manipulation, which will shed new light on the designing of open systems for liquid transfer and collecting.

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Bioinspired Dynamic Wetting on Multiple Fibers

Cited by 46 publications

References 65 publications

4D Self‐Morphing Culture Substrate for Modulating Cell Differentiation

4D Self‐Morphing Culture Substrate for Modulating Cell Differentiation

Enhanced Liquid Propagation and Wicking Along Nanostructured Porous Surfaces

The Flexible Conical Lamella: A Bio‐Inspired Open System for the Controllable Liquid Manipulation

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