Polydopamine-modified MXene-integrated photothermal responsive hydrogel for constructing rapid photothermal and self-sensing gradi- ent hydrogel actuators DOI
Caixia Sun, Xinyi Wang,

Shaoshuai Ma

et al.

Smart Materials and Structures, Journal Year: 2024, Volume and Issue: 33(12), P. 125043 - 125043

Published: Nov. 13, 2024

Abstract Poly(N-isopropylacrylamide)-based stimuli-responsive hydrogel actuators have made significant progress. By introducing responsive modules such as photothermal nanoparticles, the can respond to environmental changes and construct anisotropic structures, allowing quickly bend realize complex shape deformation. However, there remains a need enhance mechanical properties of these hydrogels accommodate multiple deformation actions different application scenarios, compatibility between nanoparticles improve comprehensive performance materials are still issues that be solved. In this study, we modified two-dimensional MXene nanosheets with polydopamine (PDA) obtain P-MXene, which served agent stably dispersed within system. We copolymerized thermosensitive N-isopropylacrylamide (NIPAm) 2-(dimethylamino)ethyl methacrylate (DMAEMA) in situ used direct current electric field induce concentration gradient distribution P-MXene hydrogel, resulting preparation good stretchability conductivity. The structure was characterized using scanning electron microscopy Fourier transform infrared spectra. swelling properties, conductivity were studied. actuation behavior P(NIPAm-DMAEMA)/P-MXene under thickness intensity investigated. Additionally, sensitivity stability conductive tested functions monitoring human health information transmission realized. It integrated rapid photo responsiveness self-sensing capabilities monitor process through real-time relative resistance during actuations. This work is expected expand soft provide new insights into design generation robots.

Language: Английский

Fast fabrication of stimuli-responsive MXene-based hydrogels for high-performance actuators with simultaneous actuation and self-sensing capability DOI

Lingke Liu,

Mengyao Gao,

Xingyu Fan

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 684, P. 469 - 480

Published: Jan. 10, 2025

Language: Английский

Citations

3
Mechanically tough thermo-responsive hydrogel reinforced by quaternary ammonium chitosan/silver nanoparticle as potential controlled drug carriers DOI

Yi‐Qi Liu,

Hongyang Guo,

Yucheng Ou

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136289 - 136289

Published: Feb. 1, 2025

Language: Английский

Citations

3
Phase‐Transition Microcapacitor Network in Organohydrogel for Absorption‐Dominated Electromagnetic Interference Shielding and Multi‐Mode Intelligent Responsiveness DOI Open Access
Ming Fang, Liya Huang,

Zhenrong Cui

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

Abstract Hydrogels/organohydrogels show promise for flexible, intelligent electromagnetic interference (EMI) shielding, yet simultaneously achieving absorption‐dominated shielding performance, excellent mechanical properties and multi‐mode responsiveness remains challenging. This study presents a microcapacitor network strategy as an alternative to the traditional conductive percolation EMI materials. Paraffin‐nanoclay/MXene core‐shell microspheres are uniformly integrated into hydrogel matrix via in situ polymerization, forming where microsphere shells serve capacitor plates dielectric layers, respectively. Microcurrents interfacial polarization at plates, along with dipole within layer, significantly promote EM wave attenuation (absorption coefficient >0.7). Meanwhile, abundant hydrogen bonds paraffin phase synergistically enhance strength (≈0.64 MPa) stretchability (elongation break > 1000%). Due solid‐liquid transition of microspheres, organohydrogel exhibits unique ability retain high‐temperature performance room temperature. feature enhances room‐temperature effectiveness enables responsiveness. Under same deformation mode, it programmable regulation response different external stimuli, following changes or simulating changes.

Language: Английский

Citations

4
Untethered Soft Robots Based on 1D and 2D Nanomaterials DOI Open Access

Jingwen He,

Peng Huang,

Bingjue Li

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract Biological structures exhibit autonomous and intelligent behaviors, such as movement, perception, responses to environmental changes, through dynamic interactions with their surroundings. Inspired by natural organisms, future soft robots are also advancing toward autonomy, sustainability, interactivity. This review summarizes the latest achievements in untethered based on 1D 2D nanomaterials. First, performance of actuators designed different is compared. Then, development basic locomotion forms, including crawling, jumping, swimming, rolling, gripping, multimodal, mimicking biological motion mechanisms under stimuli, discussed. Subsequently, various self‐sustained movements imbalance static stimuli introduced, light tracking, self‐oscillating, self‐crawling, self‐rolling, flying. Following that, progress integrated additional functionalities sensing, energy harvesting, storage summarized. Finally, challenges faced this field prospects for

Language: Английский

Citations

0
Dual-responsive Tumbleweed-inspired Soft Robot Based on Poly(N‑isopropylacrylamide) and MoS2 for Targeted Drug Delivery in Stomach DOI
Xiangyu Teng, Shan Yu,

Zezheng Qiao

et al.

Journal of Bionic Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Language: Английский

Citations

0
A Bio‐Inspired Magnetic Soft Robotic Fish for Efficient Solar‐Energy Driven Water Purification DOI
Jingjing Qin,

Jiahao Li,

Guozheng Yang

et al.

Small Methods, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 24, 2024

Abstract Solar‐driven water evaporation is a promising solution for global scarcity but still facing challenges due to its substantial energy requirements. Here, magnetic soft robotic bionic fish developed by combining nanoparticles (Fe 3 O 4 ), poly( N ‐isopropylacrylamide), and carboxymethyl chitosan. This can release liquid through hydrophilic/hydrophobic phase transition dramatically reduce consumption. The introduced Fe endow the with actuation capability, allowing remote operation recovery. Additionally, process accelerates absorption rate of as confirmed finite element simulations. results demonstrate that effectively remove not only organic molecular dyes dissolved in also harmful microbes insoluble microparticles from natural lakes. Moreover, maintains good purification efficiency even after five recycling cycles. Furthermore, possesses other functions, such salt rejection. Finally, mechanism explained conjunction dynamics calculations. work provides new approach efficient solar‐energy behavior robotics.

Language: Английский

Citations

2
Polydopamine-modified MXene-integrated photothermal responsive hydrogel for constructing rapid photothermal and self-sensing gradi- ent hydrogel actuators DOI
Caixia Sun, Xinyi Wang,

Shaoshuai Ma

et al.

Smart Materials and Structures, Journal Year: 2024, Volume and Issue: 33(12), P. 125043 - 125043

Published: Nov. 13, 2024

Abstract Poly(N-isopropylacrylamide)-based stimuli-responsive hydrogel actuators have made significant progress. By introducing responsive modules such as photothermal nanoparticles, the can respond to environmental changes and construct anisotropic structures, allowing quickly bend realize complex shape deformation. However, there remains a need enhance mechanical properties of these hydrogels accommodate multiple deformation actions different application scenarios, compatibility between nanoparticles improve comprehensive performance materials are still issues that be solved. In this study, we modified two-dimensional MXene nanosheets with polydopamine (PDA) obtain P-MXene, which served agent stably dispersed within system. We copolymerized thermosensitive N-isopropylacrylamide (NIPAm) 2-(dimethylamino)ethyl methacrylate (DMAEMA) in situ used direct current electric field induce concentration gradient distribution P-MXene hydrogel, resulting preparation good stretchability conductivity. The structure was characterized using scanning electron microscopy Fourier transform infrared spectra. swelling properties, conductivity were studied. actuation behavior P(NIPAm-DMAEMA)/P-MXene under thickness intensity investigated. Additionally, sensitivity stability conductive tested functions monitoring human health information transmission realized. It integrated rapid photo responsiveness self-sensing capabilities monitor process through real-time relative resistance during actuations. This work is expected expand soft provide new insights into design generation robots.

Language: Английский

Citations

0