Photoactivated Polymeric Bilayer Actuators Fabricated via 3D Printing

Hagaman, Daniel; Leist, Steven K.; Zhou, Jack G.; Ji, Hai‐Feng

doi:10.1021/acsami.8b08503

Cited by 63 publications

(40 citation statements)

References 42 publications

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“…[ 209 ] 3D printing of shape changing polymers, also termed 4D printing, [ 16,210–217 ] is an emerging technology with a great capacity for fabricating complex 3D structures, providing great potential for a wide range of applications. Various shape changing polymers including hydrogels, [ 98,99,111,117,118,188–201,203–220 ] shape memory polymers, [ 153,221–227 ] liquid crystal elastomers, [ 228–233 ] and silicone‐based elastomers [ 234–237 ] have been demonstrated to undergo 4D printing.…”

Section: Retaining Materials Properties Of Printed Polymersmentioning

confidence: 99%

“…reported, a photoresponsive azobenzene‐containing LCE could be printed on the surface of a Kapton film. [ 229 ] Due to the fully reversible trans–cis photoisomerization of azobenzene upon irradiation of light with different wavelength, [ 246 ] the bilayer structures exhibits rapid actuation with full cycles completed within seconds. It was found that a lengthy alkyl spacer between the AB mesogen affects the photo‐induced bending angle and photo generated stresses.…”

Section: Retaining Materials Properties Of Printed Polymersmentioning

confidence: 99%

“…The use of dynamic bonds which undergo reversible breaking, exchange and reformation could be utilized to modify the printability of polymers as well as imparting various advanced functions. [ 41–58,62–67,59,68,60,69,70,72,61,73,71,82,86–88,74–81,83–85,89–133,244,258 , …”

Section: Summary and Perspectivementioning

confidence: 99%

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Extrusion 3D Printing of Polymeric Materials with Advanced Properties

et al. 2020

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3D printing is a rapidly growing technology that has an enormous potential to impact a wide range of industries such as engineering, art, education, medicine, and aerospace. The flexibility in design provided by this technique offers many opportunities for manufacturing sophisticated 3D devices. The most widely utilized method is an extrusion‐based solid‐freeform fabrication approach, which is an extremely attractive additive manufacturing technology in both academic and industrial research communities. This method is versatile, with the ability to print a range of dimensions, multimaterial, and multifunctional 3D structures. It is also a very affordable technique in prototyping. However, the lack of variety in printable polymers with advanced material properties becomes the main bottleneck in further development of this technology. Herein, a comprehensive review is provided, focusing on material design strategies to achieve or enhance the 3D printability of a range of polymers including thermoplastics, thermosets, hydrogels, and other polymers by extrusion techniques. Moreover, diverse advanced properties exhibited by such printed polymers, such as mechanical strength, conductance, self‐healing, as well as other integrated properties are highlighted. Lastly, the stimuli responsiveness of the 3D printed polymeric materials including shape morphing, degradability, and color changing is also discussed.

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Section: Retaining Materials Properties Of Printed Polymersmentioning

confidence: 99%

Section: Retaining Materials Properties Of Printed Polymersmentioning

confidence: 99%

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Extrusion 3D Printing of Polymeric Materials with Advanced Properties

et al. 2020

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“…The Tisue Scribe has been used for various applications in tissue engineering, dental, and materials testing/optimization research, such as is used in biofabricating 3D tumor models, 79 cell-laden hydrogels for cell-cell interaction study, 80 nanocomposite hydrogels for cell migration study, 81 gelatin hydrogel properties and 3D bioprinting process optimization, 82 highly elastomeric and property-tailorable hydrogels, 83 3D printed smart dental implants, 84 biomaterials and 3D/4D printed thermosensitive and photoactivated smart materials, 85,86 and 3D printed porous structures with shape memory properties. 87,88 Advanced Solutions Inc.'s BIOBOT BASIC.…”

Section: Low-cost Microextrusion-based Bioprintersmentioning

confidence: 99%

Review of Low-Cost 3D Bioprinters: State of the Market and Observed Future Trends

et al. 2021

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Three-dimensional (3D) bioprinting has become mainstream for precise and repeatable high-throughput fabrication of complex cell cultures and tissue constructs in drug testing and regenerative medicine, food products, dental and medical implants, biosensors, and so forth. Due to this tremendous growth in demand, an overwhelming amount of hardware manufacturers have recently flooded the market with different types of low-cost bioprinter models—a price segment that is most affordable to typical-sized laboratories. These machines range in sophistication, type of the underlying printing technology, and possible add-ons/features, which makes the selection process rather daunting (especially for a nonexpert customer). Yet, the review articles available in the literature mostly focus on the technical aspects of the printer technologies under development, as opposed to explaining the differences in what is already on the market. In contrast, this paper provides a snapshot of the fast-evolving low-cost bioprinter niche, as well as reputation profiles (relevant to delivery time, part quality, adherence to specifications, warranty, maintenance, etc.) of the companies selling these machines. Specifically, models spanning three dominant technologies—microextrusion, droplet-based/inkjet, and light-based/crosslinking—are reviewed. Additionally, representative examples of high-end competitors (including up-and-coming microfluidics-based bioprinters) are discussed to highlight their major differences and advantages relative to the low-cost models. Finally, forecasts are made based on the trends observed during this survey, as to the anticipated trickling down of the high-end technologies to the low-cost printers. Overall, this paper provides insight for guiding buyers on a limited budget toward making informed purchasing decisions in this fast-paced market.

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“…The flow‐induced alignment of the LC oligomers was also applied to the preparation of LC elastomers through 3D printing technology . A mixture containing LC oligomers was used as ink for 3D printing, which was extruded under melting.…”

Section: Recent Developmentmentioning

confidence: 99%

Photomobile Polymer Materials with Complex 3D Deformation, Continuous Motions, Self‐Regulation, and Enhanced Processability

Ube

Ikeda

2019

Advanced Optical Materials

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Liquid‐crystalline polymers with photodeformable properties have been extensively studied due to their ability of wireless conversion of light energy into mechanical work. With the development of crosslinked liquid‐crystalline polymers, various 3D motions, such as bending, twisting, oscillation, rotation, and translational motion have been successfully induced. Recent trends for developing soft robots and microrobots accelerate the progress of photomobile polymer materials. This review is focused on recent advances in the field of photomobile materials based on liquid‐crystalline polymers. The structure–function relationship in photomobile polymer materials is overviewed, and the progress in recent years is detailed in terms of complex 3D deformation, continuous motions, self‐regulation, and processability.

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Photoactivated Polymeric Bilayer Actuators Fabricated via 3D Printing

Cited by 63 publications

References 42 publications

Extrusion 3D Printing of Polymeric Materials with Advanced Properties

Extrusion 3D Printing of Polymeric Materials with Advanced Properties

Review of Low-Cost 3D Bioprinters: State of the Market and Observed Future Trends

Photomobile Polymer Materials with Complex 3D Deformation, Continuous Motions, Self‐Regulation, and Enhanced Processability

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