A Stretchable Conductive Material with High Fatigue Resistance for Strain Sensors DOI

Yujing Sheng,

Zenghao Li,

Duanmin Gao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 8, 2024

Intrinsically stretchable conductive materials based on elastic substrates and components play important roles in biomedical applications, such as exercise rehabilitation monitoring disease prediction. A persistent challenge is to combine high fatigue resistance with excellent mechanical properties materials. Herein, we present a material both good tensile (∼3170%) poly(acrylic acid)-phytic acid-trehalose-polypyrrole (denoted PPTP). The as-prepared PPTP hydrogel electrode showed no obvious cracking or delamination after 400 loading unloading cycles maintained electrical signal transmission function 1000 cycles. We further collected stable signals for human motion handwriting using the strain sensor, demonstrating potential application of biomedicine.

Language: Английский

Sea Cucumber‐Inspired Polyurethane Demonstrating Record‐Breaking Mechanical Properties in Room‐Temperature Self‐Healing Ionogels DOI

Fuchang Xu,

Hongli Li, Yang Li

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(44)

Published: Sept. 12, 2024

Abstract Practical applications of existing self‐healing ionogels are often hindered by the trade‐off between their mechanical robustness, ionic conductivity, and temperature requirements for ability. Herein, this challenge is addressed drawing inspiration from sea cucumber. A polyurethane containing multiple hydrogen‐bond donors acceptors synthesized used to fabricate room‐temperature with excellent properties, high puncture resistance, impact resistance. The hard segments polyurethane, driven hydrogen bonds, coalesce into phase regions, which can efficiently dissipate energy through reversible disruption reformation bonds. Consequently, resulting exhibit record‐high tensile strength toughness compared other ionogels. Furthermore, inherent reversibility bonds within regions allows spontaneously self‐heal damaged properties conductivity times at room temperature. To underscore application potential, these employed as electrolytes in fabrication electrochromic devices, stable performance, repeatable healing ability, satisfactory This study presents a novel strategy exceptional capability.

Language: Английский

Citations

17

Bioinspired Mechanically Robust and Recyclable Hydrogel Microfibers Based on Hydrogen‐Bond Nanoclusters DOI Creative Commons

Jingye Liang,

Jishuai Xu,

Jingxuan Zheng

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(23)

Published: April 15, 2024

Abstract Mechanically robust hydrogel fibers have demonstrated great potential in energy dissipation and shock‐absorbing applications. However, developing such materials that are recyclable, energy‐efficient, environmentally friendly remains an enormous challenge. Herein, inspired by spider silk, a continuous scalable method is introduced for spinning polyacrylamide microfiber with hierarchical sheath‐core structure under ambient conditions. Applying pre‐stretch twist the as‐spun microfibers results tensile strength of 525 MPa, toughness 385 MJ m −3 , damping capacity 99%, which attributed to reinforcement hydrogen‐bond nanoclusters within matrix. Moreover, it maintains both structural mechanical stability several days, can be directly dissolved water, providing sustainable dope re‐spinning into new microfibers. This work provides strategy recyclable hydrogel‐based fibrous materials.

Language: Английский

Citations

13

Biomimetic Spinning of Strong and Hyperstable Eutectogel Fibers for Multifunctional Ionotronics DOI
Deyan Du, Tatsuo Kaneko, Weifu Dong

et al.

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

Language: Английский

Citations

1

Nature’s Load-Bearing Design Principles and Their Application in Engineering: A Review DOI Creative Commons
Firas Breish, Christian Hamm, Simone Andresen

et al.

Biomimetics, Journal Year: 2024, Volume and Issue: 9(9), P. 545 - 545

Published: Sept. 9, 2024

Biological structures optimized through natural selection provide valuable insights for engineering load-bearing components. This paper reviews six key strategies evolved in nature efficient mechanical load handling: hierarchically structured composites, cellular structures, functional gradients, hard shell–soft core architectures, form follows function, and robust geometric shapes. The also discusses recent research that applies these to design, demonstrating their effectiveness advancing technical solutions. challenges of translating nature’s designs into applications are addressed, with a focus on how advancements computational methods, particularly artificial intelligence, accelerating this process. need further development innovative material characterization techniques, modeling approaches heterogeneous media, multi-criteria structural optimization advanced manufacturing techniques capable achieving enhanced control across multiple scales is underscored. By highlighting holistic approach designing components, advocates adopting similarly comprehensive methodology practices shape the next generation

Language: Английский

Citations

6

Supramolecular 3D Printing Enabling One‐Step Generation of Healable and Recyclable Structurally Colored Objects DOI
Zhen Hu, Miaomiao Li,

Quanqian Lyu

et al.

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

Published: July 11, 2024

Abstract Structurally colored objects with 3D geometries are intriguing in optical devices and visual sensors, but their preparation is bottlenecked by complicated procedures limited material choices. Herein, a facile supramolecular printing strategy proposed via direct ink writing (DIW) colloidal inks (SCIs) consisting of polymers colloids based on interactions to construct healable recyclable structurally objects. Optimized balance the rheological requirements for DIW high particle volume fraction one‐step immediate generation structural color. The shear‐thinning thixotropy features SCIs, characterized two‐order‐of‐magnitude decrease viscosity during process 50% storage modulus recovery thereafter, ensure reversible solid–liquid transition extrusion deposition process. short‐range ordered arrangements within matrix give rise angle‐independent Moreover, from SCIs and, more importantly, can be closed‐looped recycled thanks reversibility interactions. Leveraging optimized interactions, various wide range choices meeting extended directly. This study paves way constructing advanced materials strategy.

Language: Английский

Citations

5

Nerve‐Inspired Optical Waveguide Stretchable Sensor Fusing Wireless Transmission and AI Enabling Smart Tele‐Healthcare DOI Creative Commons
Tianliang Li,

Qian’ao Wang,

Zhanghua Cao

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Abstract Flexible strain monitoring of hand and joint muscle movement is recognized as an effective method for the diagnosis rehabilitation neurological diseases such stroke Parkinson's disease. However, balancing high sensitivity large strain, improving wearing comfort, solving separation treatment are important challenges further building tele‐healthcare systems. Herein, a hydrogel‐based optical waveguide stretchable (HOWS) sensor proposed in this paper. A double network structure adopted to allow HOWS exhibit stretchability tensile up 600% 0.685 mV % −1 . Additionally, flexible smart bionic fabric embedding sensor, produced through warp weft knitting, significantly enhances comfort. small circuit board prepared enable wireless signal transmission designed thereby daily portability. speech recognition human‐machine interaction system, based on acquisition, constructed, convolutional neural algorithm integrated disease assessment. By integrating sensing, transmission, artificial intelligence (AI), system sensors demonstrated hold great potential early warning diseases.

Language: Английский

Citations

4

Molecular origin for toughness of hydrogel artificial spider silk for surgical sutures DOI
Jiatian Li, Abdul Qadeer Khan,

Weiqiang Zhao

et al.

Science China Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Language: Английский

Citations

0

Bioinspired cholesteric CNC-based photonic hydrogels with enhanced mechanical properties and dynamic structural color for multifunctional optical applications DOI
Yueyue Li, Mengyuan Zhu, Ruoyu Yin

et al.

Carbohydrate Polymers, Journal Year: 2025, Volume and Issue: unknown, P. 123628 - 123628

Published: April 1, 2025

Language: Английский

Citations

0

Spider Silk-Inspired Bio-Based Adhesive: Robust Adhesion Strength, Exceptional Flame Retardancy, and Full Recyclability DOI

Jin-Feng Feng,

Ting Wang,

Caihong Xu

et al.

ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 2031 - 2040

Published: April 27, 2025

Language: Английский

Citations

0

Dough‐Kneading‐Inspired Universal Mixing Strategy for Mass Production of Multi‐Stimuli‐Responsive Hydrogels DOI
Wen‐Yao Huang, Chen Yao, Jingjing Xiao

et al.

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

Published: May 5, 2025

Abstract Inspired by dough kneading, a straightforward and versatile mixing strategy is proposed for the safe, rapid, large‐scale production of smart hydrogels. This approach achieved directly blending gel powders with an appropriate amount swelling agent. The applied possess strong adhesion, enabling them to function as both glue bonding different hydrogels healing agents repairing damaged hydrogels, while their recyclability reusability help lower costs minimize environmental impact. resulting hydrogel, featuring unique internal heterogeneous porous structure, exhibits fast response speed, excellent recoverability, high fatigue resistance. Mechanical tests reveal that this hydrogel robust, capable resisting large elongations (>400%) without breaking, enduring multiple compressions (53%, 10 cycles) crushing, maintaining integrity during prolonged immersion (≈1032 h). Through precise control composition spatial distribution replaceable agents, enables customizable architectures selective shape‐morphing functionality under programmed stimuli. Overall, scalable paradigm establishes eco‐conscious manufacturing platform high‐throughput synthesis stimuli‐responsive materials, positioning it key enabler next‐generation soft devices.

Language: Английский

Citations

0