A bamboo/PNIPAM composite hydrogel assembly for both programmable and remotely-controlled light-responsive biomimetic actuations

Chen, Lian; Wei, Xianshuo; Sun, Ye; Xue, Yuan; Wang, Jingwen; Wu, Qijun; Ma, Chunxin; Yang, Xuxu; Duan, Gaigai; Wang, Feng; Jian, Shaoju; Yang, Weisen; Jiang, Shaohua

doi:10.1016/j.cej.2022.137072

Cited by 33 publications

(22 citation statements)

References 48 publications

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“…(d) Bending process diagram of the hydrogel actuator under 3 W NIR light and (e) recovery process diagram in water at 10 °C. (f) The light-response speed of the hydrogel actuators was compared with other studies (1: ref ; 2: ref ; 3: ref ; 4: ref ; 5: ref ; 6: ref ; 7: ref ; 8: this work). (g) Bending/recovery cycle test of 150 times of the composite hydrogel actuator under NIR light.…”

Section: Resultsmentioning

confidence: 99%

“…These inspire us to develop smart materials that can adapt to a variety of environments, especially through remote control (light, electricity, magnetism, etc. ), − which have the advantages of being adjustable and having high precision and easy operation. However, most of the current PNIPAM-based hydrogel actuators only have single or dual response capabilities, and the few actuators with multiple responses were mostly a combination of short-range actuation and light-actuation.…”

Section: Introductionmentioning

confidence: 99%

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Remotely Controlled Light/Electric/Magnetic Multiresponsive Hydrogel for Fast Actuations

Wei

Chen

et al. 2023

ACS Appl. Mater. Interfaces

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As a kind of soft smart material, hydrogel actuators have extensive development prospects, but it is still difficult for these actuators to integrate multiresponsiveness, multiple remote actuation, high strength, fast responsiveness, and programmable complex deformation. Herein, we have explored an anisotropic bilayer hydrogel actuator with an Fe 3 O 4 /co-poly-(isopropylacrylamide-4-benzoylphenyl acrylate) [Fe 3 O 4 /P-(NIPAM-ABP)] active layer and an isotropic conductive adhesive (ICAs) passive layer based on the layer-by-layer method. Benefiting from the fibrosis and porosity of the Fe 3 O 4 / P(NIPAM-ABP) hydrogel, the ICAs-Fe 3 O 4 /P(NIPAM-ABP) hydrogel actuator has excellent mechanical strength (tensile strength of 3.1 ± 0.3 MPa) and response speed (temperature (45 °C): bending speed of 2400.3°/s; near-infrared (NIR) light: bending speed of 356.4°/s; electricity (2 V): bending speed of 180°/s; water (10 °C): recovery speed of 30.0°/s). In addition, the good photothermal properties and magnetic conductivity of Fe 3 O 4 nanoparticles provide precise remotely controllable light-and magnetic-actuated properties for the hydrogel actuator. The Ag microsheets with excellent conductivity (1.4 × 10 4 S/cm) provide remotely controllable electrical-actuated property for the hydrogel actuator. Combined with the responsiveness of P(NIPAM-ABP), the actuator can achieve short-range actuation including temperature-, ethanol-, and salt-responses. More importantly, it can achieve remote actuation including light, electrical, and magnetic responses. Finally, the Fe 3 O 4 /P(NIPAM-ABP) fibers can provide excellent anisotropic structures for the actuator to achieve precise deformational programmability. Inspired by some phenomena in nature, several actuating devices with the above characteristics have been successfully developed. This study can provide a general method for multifunctional anisotropic hydrogel actuators and will provide a new strategy for exploring smart materials suitable for complex bioinspired systems.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Remotely Controlled Light/Electric/Magnetic Multiresponsive Hydrogel for Fast Actuations

Wei

Chen

et al. 2023

ACS Appl. Mater. Interfaces

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“…Overall, their study illustrated that there is a huge potential for developing valuable biomaterials from food wastes and utilizing their liquid-holding capabilities for value-added applications in the medical and pharmaceutical fields. Chen et al [ 131 ] reported a bamboo–nigrosine–poly(N-isopropylacrylamide) composite hydrogel actuator capable of complex deformations and near-infrared light response based on bamboo sheets. The simple and rapid ultraviolet in situ polymerization method closely connected bamboo and hydrogel so that the composite hydrogel actuator was difficult to peel off during the actuation process.…”

Section: Organic Ceramic and Hybrid Biomimetic Nanomaterialsmentioning

confidence: 99%

Biomimetic Nanomaterials: Diversity, Technology, and Biomedical Applications

Гареев

Grouzdev²,

Koziaeva

et al. 2022

Nanomaterials

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Biomimetic nanomaterials (BNMs) are functional materials containing nanoscale components and having structural and technological similarities to natural (biogenic) prototypes. Despite the fact that biomimetic approaches in materials technology have been used since the second half of the 20th century, BNMs are still at the forefront of materials science. This review considered a general classification of such nanomaterials according to the characteristic features of natural analogues that are reproduced in the preparation of BNMs, including biomimetic structure, biomimetic synthesis, and the inclusion of biogenic components. BNMs containing magnetic, metal, or metal oxide organic and ceramic structural elements (including their various combinations) were considered separately. The BNMs under consideration were analyzed according to the declared areas of application, which included tooth and bone reconstruction, magnetic and infrared hyperthermia, chemo- and immunotherapy, the development of new drugs for targeted therapy, antibacterial and anti-inflammatory therapy, and bioimaging. In conclusion, the authors’ point of view is given about the prospects for the development of this scientific area associated with the use of native, genetically modified, or completely artificial phospholipid membranes, which allow combining the physicochemical and biological properties of biogenic prototypes with high biocompatibility, economic availability, and scalability of fully synthetic nanomaterials.

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“…For many applications, the mechanical properties of hydrogels are vital to preserving their shape, stiffness, and robustness during use. The mechanical properties of hydrogels are generally enhanced by incorporating strong fibers or nanoparticles into the matrix. , Strong natural fibers, such as cotton, flax, hemp, and jute, have already been explored as reinforcing agents for polymer and hydrogel composites. Lately, nanofibers, particularly cellulose nanofibers (CNFs), have attracted significant attention as reinforcing fillers in hydrogel composites due to their high strength, crystallinity, surface area, and aspect ratio.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Cellulose Hydrogels and Hydrogel Nanocomposites Reinforced by Crystalline Cellulose Nanofibers (CNFs) as a Water Reservoir for Agriculture Use

Das

Bhattacharjee

Bhaladhare

2023

ACS Appl. Polym. Mater.

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An effective strategy for the management of available water and fertilizers is imperative to improve agricultural production and food quality, including releasing them sustainably to the soil and plants. Polymeric hydrogels with three-dimensional (3D) networks can absorb ample water and soluble fertilizers without network dissolution. Subsequently, the absorbed water and fertilizers can be released to arid and semi-arid agricultural land to furnish enough moisture and nutrients for plant growth. In this study, carboxymethyl cellulose sodium salt (NaCMC)- and hydroxyethyl cellulose (HEC)-based hydrogels have been synthesized using citric acid (CA) as a crosslinker. The Fourier transform infrared (FTIR) spectroscopy study revealed the formation of hydrogels with porous structures depicted by field emission scanning electron microscopy images. The prepared hydrogels have shown a remarkable swelling ratio of ∼1070% for the hydrogel prepared using NaCMC/HEC: 2/1 and ∼840% for NaCMC/HEC: 3/1 and a reduction in the swelling ratio with increasing crosslinking density. Moreover, crystalline (shown by X-ray diffraction) cellulose nanofibers (CNFs: ∼600 nm), prepared by acid (H2SO4) hydrolysis of cotton fibers, have been used to prepare hydrogel nanocomposites. The evaluation of hydrogel nanocomposites’ mechanical properties (universal testing matching test) depicted an improved tensile strength (16.27 MPa using 0.7% CNFs) compared to that of the hydrogel without CNFs. The soil burial test for biodegradation study of prepared hydrogels revealed soil degradation of hydrogel, confirmed by FTIR analysis and visual appearance. The current study provides comprehensive data establishing the potential of hydrogels for agriculture applications.

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A bamboo/PNIPAM composite hydrogel assembly for both programmable and remotely-controlled light-responsive biomimetic actuations

Cited by 33 publications

References 48 publications

Remotely Controlled Light/Electric/Magnetic Multiresponsive Hydrogel for Fast Actuations

Remotely Controlled Light/Electric/Magnetic Multiresponsive Hydrogel for Fast Actuations

Biomimetic Nanomaterials: Diversity, Technology, and Biomedical Applications

Preparation of Cellulose Hydrogels and Hydrogel Nanocomposites Reinforced by Crystalline Cellulose Nanofibers (CNFs) as a Water Reservoir for Agriculture Use

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