Photothermal and Moisture Actuator Made with Graphene Oxide and Sodium Alginate for Remotely Controllable and Programmable Intelligent Devices

Wang, Wen; Xiang, Chenxue; Sun, Dengming; Li, Mufang; Yan, Kang; Wang, Dong

doi:10.1021/acsami.9b05136

Cited by 52 publications

(49 citation statements)

References 41 publications

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“…Various biomaterials with photothermal effects have been reported past a few years involving gold nanoparticles [123][124][125] and carbon nanomaterials [126][127][128]. Among these, graphene oxide (GO) has shown great promise due to its ability to absorb near-infrared (NIR) light, its high photothermal transforming efficiency, and biocompatibility, [129][130][131][132] differentiation. Furthermore, the underlying mechanism of osteogenesis was discussed ( Fig.9).…”

Section: Photothermally-controlled Bone Scaffoldsmentioning

confidence: 99%

A review of biomimetic scaffolds for bone regeneration: Toward a cell‐free strategy

Jiang

Wang

2020

Bioengineering & Transla Med

112

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In clinical terms, bone grafting currently involves the application of autogenous, allogeneic, or xenogeneic bone grafts, as well as natural or artificially synthesized materials, such as polymers, bioceramics, and other composites. Many of these are associated with limitations. The ideal scaffold for bone tissue engineering should provide mechanical support while promoting osteogenesis, osteoconduction, and even osteoinduction. There are various structural complications and engineering difficulties to be considered. Here, we describe the biomimetic possibilities of the modification of natural or synthetic materials through physical and chemical design to facilitate bone tissue repair. This review summarizes recent progresses in the strategies for constructing biomimetic scaffolds, including ion‐functionalized scaffolds, decellularized extracellular matrix scaffolds, and micro‐ and nano‐scale biomimetic scaffold structures, as well as reactive scaffolds induced by physical factors, and other acellular scaffolds. The fabrication techniques for these scaffolds, along with current strategies in clinical bone repair, are described. The developments in each category are discussed in terms of the connection between the scaffold materials and tissue repair, as well as the interactions with endogenous cells. As the advances in bone tissue engineering move toward application in the clinical setting, the demonstration of the therapeutic efficacy of these novel scaffold designs is critical.

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Section: Photothermally-controlled Bone Scaffoldsmentioning

confidence: 99%

A review of biomimetic scaffolds for bone regeneration: Toward a cell‐free strategy

Jiang

Wang

2020

Bioengineering & Transla Med

112

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“…[113][114][115][116] A few examples of fiber-based photoresponsive actuators are given below. [117,118] Wang's group fabricated a sodium polyacrylate (PAAS)/GO twisted fiber by using wet spinning and twisting methods, which rotated at an actuation temperature of approximately 25 °C under NIR irradiation ( Figure 6F). [117] This is due to the photothermal effect of GO and shrinkage of the torsional fiber owing to the evaporation of the absorbed water from the GO surface, as illustrated in Figure 6E.…”

Section: Fibersmentioning

confidence: 99%

“…Wang and his collaborators also designed a sodium alginate (SA)/GO torsional fiber by a similar technique. [118] The fiber generates rapid and reversible rotational and extending/contracting behaviors under infrared light or moisture stimuli. The photoresponsive actuators based on fibers can be attained by applying the spinning and twisting technique on photoresponsive composite materials, or modifying and twisting CNT films into fibers.…”

Section: Fibersmentioning

confidence: 99%

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Recent Advances in Photoactuators and Their Applications in Intelligent Bionic Movements

Zhou

Liu

2020

Advanced Optical Materials

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Photoactuators that can produce a reversible mechanical deformation under light stimuli have attracted tremendous interest in the recent years owing to the advantages of abundant availability of resources, remote and accurate control, and applicability in soft robots, sensors and biomimetic devices. In this study, the recent advances in photoactuators related to actuation mechanisms (photothermal and photochemical), fabricaton from different configurations and types of materials, and their potential applications in bionic movements are reviewed. The opportunities and challenges in this field are also discussed, such as fabricating actuators with robust mechanical properties and superior actuating performance, seeking effective actuation mechanisms, and widening the range of applications. This review provides an insight into designing high‐performance, multi‐functional photoactuators and serves as a motivation for their development in future.

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“…Twisted and coiled fiber-based materials, which can be stimulated by thermal, moisture or chemical solvent, have attracted a great deal of attention in recent years because of their high efficiency, fast response, scalable, non-hysteretic, long-life tensile and low-cost [1][2][3][4][5][6][7][8][9]. Different kinds of materials such as carbon materials [10][11][12][13], polymer fiber [14][15][16][17], and metal fiber [18,19] can be utilized to prepare twisted and coiled fiber-based thermal actuator which can be stimulated by external thermal energy like joule heat, infrared lamp and hot water.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Natural Melanin/Poly(vinyl Alcohol-co-ethylene) Nanofibers/PA6 Fiber for Twisted and Coiled Fiber-Based Actuator

et al. 2020

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Twisted and coiled fiber-based actuators have drawn a great attention because their unique structure can provide mechanical response with the external thermal stimulus. Herein, an ultra-fast and lightweight twisted and coiled fiber-based actuator was designed based on a nature melanin/poly (vinyl alcohol-co-ethylene) (PVA-coPE) nanofibers/PA6 composite fiber. In brief, PA6 was firstly coated by melanin/PVA-coPE nanofibers using a spraying method, followed by the twisting and coating the composite fiber to obtain the actuator. The excellent photothermal property of melanin contributed to the superior performance of the actuator, whereas the PVA-coPE nanofibers was responsible for the uniform distribution of melanin and the enhanced mechanical property of the prepared-actuator. This unique design has led to the high performance of the melanin/NFs/PA6 fiber-based actuator, whose torsion actuation can reach to 14,000 rpm, and maximum tensile actuation was − 6.36% at temperature difference of 40 ℃. In addition, the tensile stress of PA6/NFs/melanin fiber was about four times higher than PA6 filaments. Owing to the simple and environmental-benign preparation method, as well as the excellent efficiency of twisted and coiled melanin/NFs/PA6 fiber-based actuator, this study highlights the facile design of the composite fiber for high-performance fiber-based actuators. This fiber-based actuator is promising for application in energy generator.

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Photothermal and Moisture Actuator Made with Graphene Oxide and Sodium Alginate for Remotely Controllable and Programmable Intelligent Devices

Cited by 52 publications

References 41 publications

A review of biomimetic scaffolds for bone regeneration: Toward a cell‐free strategy

A review of biomimetic scaffolds for bone regeneration: Toward a cell‐free strategy

Recent Advances in Photoactuators and Their Applications in Intelligent Bionic Movements

High-Performance Natural Melanin/Poly(vinyl Alcohol-co-ethylene) Nanofibers/PA6 Fiber for Twisted and Coiled Fiber-Based Actuator

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