Self-Healing, Highly Stretchable Conductive Polyurethane Elastomers Containing Aniline Trimers with Shape Memory Effect

Polymer, Journal Year: 2025, Volume and Issue: unknown, P. 128139 - 128139

Published: Feb. 1, 2025

Language: Английский

---

Emerging Eutectogel Materials: Development, Synthesis, Properties, and Applications in Food Science

Trends in Food Science & Technology, Journal Year: 2025, Volume and Issue: unknown, P. 104962 - 104962

Published: March 1, 2025

Language: Английский

---

From Sea Cucumbers to Soft Robots: A Photothermal-Responsive Hydrogel Actuator with Shape Memory

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

Published: Jan. 19, 2025

Soft robotics has undergone considerable progress driven by materials that can effectively transduce external stimuli into mechanical actuation. Here, we report the development of a photothermal-responsive hydrogel actuator with shape memory capabilities inspired adaptive locomotion sea cucumbers. This is based on cucumber peptides (SCP) and liquid metal (LM) network responsive to near-infrared (NIR) light. Upon NIR irradiation, undergoes phase transition from swollen collapsed state, resulting in controlled volumetric change. Incorporating polymer (SMP) matrix facilitates actuator's retention its deformed configuration following stimulus removal, thereby enabling intricate, multiphase transformations. SCP/LM overcomes limitations traditional hydrogels achieves good stretchability (3,000%) enough adhesion (21 kPa), exhibiting no toxicity human cells. Furthermore, exhibited significant bending complex deformation within 100 s exposure. offers new opportunities for soft biomedical applications, showcasing potential pathway incorporating next generation smart devices.

Language: Английский

---

Tailoring Thermomechanical, Shape Memory and Self-Healing Properties of Furan-Based Polyketone via Diels-Alder Chemistry with Different Bismaleimide Crosslinkers

Polymers, Journal Year: 2025, Volume and Issue: 17(5), P. 565 - 565

Published: Feb. 20, 2025

Furan/maleimide dynamic covalent chemistry has been extensively used to fabricate re-workable and self-healing thermosets. Understanding the relationship between crosslinker structure, network dynamics, material final properties, however, remains a challenge. This study introduces shape-memory thermosets derived from furan-functionalized polyketones (PKFU) crosslinked with aromatic bis-maleimides, i.e., 1,1'-(methylenedi-4,1-phenylene)bis-maleimide (BISM1) bis(3-ethyl-5-methyl-4-maleimidophenyl)methane (BISM2), via thermally reversible Diels-Alder reaction. Polyketones were chemically modified furfurylamine through Paal-Knorr reaction, achieving varying furan grafting ratios. The resulting networks, characterized by ATR-FTIR, 1H-NMR, gel permeation chromatography (GPC), differential scanning calorimetry (DSC), rheology, demonstrated tunable thermomechanical properties. BISM2-based exhibited enhanced thermal stability reversibility over broad temperature range (20-120 °C), shape recovery ratio of up 89% complete at 120 °C within 5 min. These findings highlight potential polyketone-based for applications requiring adaptive efficient self-repair, sustainability.

Language: Английский

---

Selective response of artificial muscles to multiple stimuli under neural circuit control

Chaos Solitons & Fractals, Journal Year: 2025, Volume and Issue: 194, P. 116162 - 116162

Published: Feb. 22, 2025

---

NIR-II responsive multi-functional scaffold with PTT/CDT/CT/MHT and ion synergistic effects for all-in-one treatment of osteosarcoma-associated bone defects

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112504 - 112504

Published: April 1, 2025

Language: Английский

---

Designed amino acid-based deep eutectic solvents as a platform to functionalize biomedical elastomers by polyaddition reactions

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162605 - 162605

Published: April 1, 2025

Language: Английский

---

Self-adaptive and large-area sprayable thermal management coatings for energy saving

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: April 22, 2025

Self-adaptive thermal management over large areas is highly attractive since single-mode radiative cooling materials lead to undesired overcooling. However, it remains a challenge that dual-mode switchable require artificial stimuli or additional energy for switching between heating and modes. Here, different from driven by energy, we propose an autonomously self-adaptive dual-modal coating with assembled micro-heterostructures can engender the multistage scattering of incident light. The resultant demonstrates 92% solar reflectivity 93% emissivity in hot condition. More significantly, reaches 60% visible light optical modulation, which attributed formation disruption conjugation region chromogenic molecules, prevent overcooling cold A thermal-switchable fabric further fabricated via large-area spraying processes, demonstrating 2.5 °C warmer condition 8.7 cooler compared white samples. highlights importance large-scale manufacturing temperature-adaptive materials, providing insights into application dynamic garment, camping, building other fields.

Language: Английский

---

One-Pot and Fast Synthesis of Hydrogels with Photoswitchable Dynamic Coordination Cross-Linking for Tunable Healing, Photopatterning, and Light Sensing

Macromolecules, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Language: Английский

---

Self‐Sustained Liquid Crystal Elastomer Actuators with Geometric Zero‐Elastic‐Energy Modes

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

Abstract Recently, a novel and fascinating actuation mode of liquid crystal elastomers (LCEs), known as geometric zero‐elastic‐energy modes (ZEEMs), has drawn intensive research interest. Based on this mechanism, LCE actuators exhibit untethered, autonomous movements under external stimulations, demonstrating significant potential for applications in intelligent soft robots, energy conversion systems, smart optical tuning components. This perspective provides timely summary the current based ZEEMs highlights their future development trends prospects, which will be great interest to broad communities researchers fields LCEs, biomimetic materials, robotics, actuators.

Language: Английский

---