Fabrication of a tunable photothermal actuator <i>via in situ</i> oxidative polymerization of polydopamine nanoparticles in hydrogel bilayers

Lee, Chaewon; Park, Jin Hyeok; Kim, Mina; Kim, Jong Sik; Shim, Tae Soup

doi:10.1039/d2sm00420h

Cited by 9 publications

(4 citation statements)

References 36 publications

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“…Some polymers that can alter its shape under specific light without the precise shape programming posttreatment, such as the reversible swelling-deswelling of poly(n-isopropylacrylamide) (PNIPA) in water under temperature changes. 79 This actuating process only requires the intrinsic physical nature of polymers rather F I G U R E 3 (A) Schematic illustration of the preparation of anisotropic hydrogel and the actuation behavior. (B) SEM images of anisotropic structure.…”

Section: Photothermal Actuationmentioning

confidence: 99%

Self‐healing polymers for soft actuators and robots

Qiu,

Zhang

2023

Journal of Polymer Science

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Advances in artificial intelligence technology bring a rising demand on stimuli responsive actuating materials and soft actuators. By the virtue of easy deformation and mechanical resilience, polymers with unique properties like shape‐memory, electro/magneto‐active, and thermal/humidity/chemical‐responsiveness have emerged as promising candidates for soft robotics. Damage tolerance or a degree of self‐healing ability improves soft robots endowed with such materials longevity, and provides safeguards for the function and potentially reduce costs. The combination of stimuli‐responsive actuation and self‐healing function involves elaborate supramolecular chemical and physical structure designs, being a challenging topic within the field of soft robotics and thus intriguing wide research interests. This review aims to discuss some highlights in convenient combination of stimuli‐responsive micro‐nanostructures and dynamic bonds chemistry within last 5 years, that further give the actuators recovery of mechanic and function, and improved comprehensive properties. Through a review of the most remarkable paradigms, the order organization of dynamic bonds with liquid crystal mesogenic units, functional micro‐nanofillers, hierarchical gradient interfaces, etc. are outlined. Finally, the perspectives and main challenges of self‐healable actuators are summarized. It is anticipated that this review will provide scientists with insights and guidance for the future innovative research in this field.

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Section: Photothermal Actuationmentioning

confidence: 99%

Self‐healing polymers for soft actuators and robots

Qiu,

Zhang

2023

Journal of Polymer Science

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“…It was demonstrated that adjusting the concentration of Ca 2+ can tune the mechanical properties of alginate hydrogels over a wide range, enabling them to be applied in different scenarios. [93][94] Unlike polysaccharides, protein-based hydrogels, such as collagen, tend to gel spontaneously without induction from the external environment. Collagen also contains many cell-signaling domains present in the extracellular matrix in vivo that can directly promote wound healing.…”

Section: Natural Hydrogelmentioning

confidence: 99%

Section: Photothermal Hydrogelsmentioning

confidence: 99%

Photothermal Hydrogels for Promoting Infected Wound Healing

Xie

Wang

et al. 2022

Macromolecular Bioscience

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Photothermal therapies (PTT), with spatiotemporally controllable antibacterial capabilities without inducing resistance, have shown encouraging prospects in the field of infected wound treatments. As an important platform for PTT, photothermal hydrogels exhibit attractive advantages in the field of infected wound treatment due to their excellent biochemical properties and have been intensively explored in recent years. This review summarizes the progress of the photothermal hydrogels for promoting infected wound healing. Three major elements of photothermal hydrogels, i.e., photothermal materials, hydrogel matrix, and construction methods, are introduced. Furthermore, different strategies of photothermal hydrogels in the treatment of infected wounds are summarized. Finally, the challenges and prospects in the clinical treatment of photothermal hydrogels are discussed.

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“…in response to external stimuli, showing great promise in developing smart materials. Based on the interesting structure and excellent performance, such as remarkable flexibility, softness, superior absorption capacity in their swollen state, nontoxicity, biocompatibility, biodegradability and tunable mechanical properties [1,11] , polymer hydrogels have been used as superabsorbent materials [12] , for industrial wastewater treatment [13] , to build various of intelligent apparatus and actuators [14][15][16][17] , to control drugs delivery and release [18,19] , to engineer artificial muscles and tissue [20][21][22][23] . Hydrogels characterized by recognizing and responding specifc analytes such as human metabolites [24] , heavy metal ions [3,25,26] , anionic species [4,27] , etc.…”

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confidence: 99%

Specific Visual-volumetric Sensor for Mercury Ion Based on Smart Hydrogel

Zhang

Chen

Guo

et al. 2023

Preprint

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On the bases of “seeing is believing” concept and the existing theory of coordination chemistry, we innovatively designed and synthesized a visual-volumetric sensor platform with fluorescein and uracil functionalized polyacrylamide hydrogel for the first time. Without the aid of complicated instruments and any power sources, the sensor enables quantitative detection M level by reading graduation on a pipette with the naked-eye. The sensor undergoes volumetric response and shows a wide linear response range to (~) with of the detection limit. The high selective (easily distinguished from other common metal ions), rapid response (~30min) and acceptable reproducibility (RSD<5% in all cases) demonstrated that the developed sensor is suitable for practical use onsite for the determination of while conveniently being low cost, simple and portable. The design principles of the obtained materials and the construction techniques and methods of the sensors in our work provide a new idea for the research and development of smart materials and series of visual-volumetric sensors for other analytes.

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Fabrication of a tunable photothermal actuator via in situ oxidative polymerization of polydopamine nanoparticles in hydrogel bilayers

Abstract: Photothermally triggered actuation enables the remote and local control of a material. The complex actuation can be achieved by controlling the photothermal efficiency of the material, which is crucial for...

Cited by 9 publications

References 36 publications

Self‐healing polymers for soft actuators and robots

Self‐healing polymers for soft actuators and robots

Photothermal Hydrogels for Promoting Infected Wound Healing

Specific Visual-volumetric Sensor for Mercury Ion Based on Smart Hydrogel

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