4D-printed pH sensing claw

Chen, Jingru; Su, Cheng‐Kuan

doi:10.1016/j.aca.2022.339733

Cited by 17 publications

(6 citation statements)

References 54 publications

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“…[406][407][408] 3D printing of pH-responsive polymers has demonstrated its potential for developing personalized drug delivery systems, tissue scaffolds, wound dressings, mobile micromachines, and smart sensing devices, thanks to its multimaterial printing ability and geometrical flexibility. [409][410][411][412][413][414] For instance, Wu et al [415] used ABS filaments and poly(4-vinylpyridine)-incorporated ABS filaments to develop a pH-sensing claw, which exhibited reversible geometric changes, as illustrated in Figure 11A. This multimaterial printed sensing claw allowed reliable pH measurements of complicated samples.…”

Section: Ph-responsive Polymersmentioning

confidence: 99%

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Recent Advances in the Additive Manufacturing of Stimuli‐Responsive Soft Polymers

Tariq,

Arif,

Khalid

et al. 2023

Adv Eng Mater

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Stimuli‐responsive polymers (SRPs) are special types of soft materials, which have been extensively used for developing flexible actuators, soft robots, wearable devices, sensors, self‐expanding structures, and biomedical devices, thanks to their ability to change their shapes and functional properties in response to external stimuli including light, humidity, heat, pH, electric field, solvent, and magnetic field or combinations of two or more of these stimuli. In recent years, additive manufacturing (AM) aka three‐dimensional (3D) printing technology of these SRPs, also known as four‐dimensional (4D) printing, has gained phenomenal attention in different engineering fields, thanks to its unique ability to develop complex, personalized, and innovative structures, which undergo twisting, elongating, swelling, rolling, shrinking, bending, spiraling, and other complex morphological transformations. Herein, an effort has been made to provide insightful information about the AM techniques, type of SRPs, and their applications including, but not limited to tissue engineering, soft robots, bionics, actuators, sensors, construction, and smart textiles. This article also incorporates the current challenges and prospects, hoping to provide an insightful basis for the utilization of this technology in different engineering fields. It is expected that the amalgamation of 3D printing with SRPs would provide unparalleled advantages in different engineering arenas.This article is protected by copyright. All rights reserved.

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Section: Ph-responsive Polymersmentioning

confidence: 99%

Section: Additively Manufactured Srpsmentioning

confidence: 99%

Recent Advances in the Additive Manufacturing of Stimuli‐Responsive Soft Polymers

Tariq,

Arif,

Khalid

et al. 2023

Adv Eng Mater

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“…Beyond this, some materials show pH-dependent swelling behavior as a result of the electrostatic repulsion of the charged unit at the molecular level. On this basis, pH-sensitive bilayer structures whose geometric changes were actuated by imbalanced swelling behavior under different pH conditions can be fabricated ( Figure 3Ab ) [ 77 ] . Some hydrogels, such as sodium alginate, show ion responsiveness and exhibit 4D deformation in ionic solution by design [ 78 ] .…”

Section: Deformation Designmentioning

confidence: 99%

Section: Deformation Designmentioning

confidence: 99%

Smart implants: 4D-printed shape-morphing scaffolds for medical implantation

Qu¹,

Huang²,

Gu³

et al. 2023

IJB

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Biomedical implants have recently shown excellent application potential in tissue repair and replacement. Applying three-dimensional (3D) printing to implant scaffold fabrication can help to address individual needs more precisely. Four-dimensional (4D) printing emerges rapidly based on the development of shape-responsive materials and design methods, which makes the production of dynamic functional implants possible. Smart implants can be pre-designed to respond to endogenous or exogenous stimuli and perform seamless integration with regular/ irregular tissue defects, defect-luminal organs, or curved structures via programmed shape morphing. At the same time, they offer great advantages in minimally invasive surgery due to the small-to-large volume transition. In addition, 4D-printed cellular scaffolds can generate extracellular matrix (ECM)-mimetic structures that interact with the contacting cells, expanding the possible sources of tissue/organ grafts and substitutes. This review summarizes the typical technologies and materials of 4D-printed scaffolds, and the programming designs and applications of these scaffolds are further highlighted. Finally, we propose the prospects and outlook of 4D-printed shape-morphing implants.

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“…4DP technology has huge potential to print pH-responsive soft robots, biocatalysts, valves, actuators, and devices for drug delivery [306]- [308]. For instance, Wu et al [309] fabricated a cost-effective pH measurement device through the process by incorporating poly(4vinylpyridine) into ABS thermoplastic filaments. The 4D-printed pH sensing claw revealed linearity between the pH values from 5.0 to 8.6.…”

Section: Figure 12 Applications Of 4d-printed Smart/intelligent Mater...mentioning

confidence: 99%