Ultra‐stretchable, super‐tough, and highly stable ion‐doped hydrogel for advanced robotic applications and human motion sensing

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

Published: Feb. 13, 2025

Abstract Hydrogel‐based sensors are recognized as key players in revolutionizing robotic applications, healthcare monitoring, and the development of artificial skins. However, primary challenge hindering commercial adoption hydrogel‐based is their lack high stability, which arises from water content within hydrogel structure, leading to freezing at subzero temperatures drying issues if protective layer compromised. These factors result a significant decline benefits offered by aqueous gel electrolytes, particularly terms mechanical properties conductivity, crucial for flexible wearable electronics. Previous reports have highlighted several disadvantages associated with using cryoprotectant co‐solvents lower ion‐doped anti‐freezing sensors. In this study, design optimization photocrosslinkable ionic utilizing silk methacrylate novel natural crosslinker presented. This innovative demonstrates significantly enhanced properties, including stretchability (>1825%), tensile strength (2.49 MPa), toughness (9.85 MJ m – 3 ), resilience (4% hysteresis), compared its non‐ion‐doped counterpart. Additionally, exhibits exceptional nonfreezing behavior down −85°C, anti‐drying functional stability up 2.5 years, signal drift only 5.35% over 2450 cycles, whereas control variant, resembling commonly reported hydrogels, 149.8%. The successful application developed advanced robotics, combined pioneering demonstration combinatorial commanding single sensor, could potentially revolutionize sensor design, elevating it next level benefiting various fields. image

Language: Английский

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Cysteine‐Based Dynamic Self‐Assembly and Their Importance in the Origins of Life

ChemSystemsChem, Journal Year: 2024, Volume and Issue: 6(4)

Published: April 12, 2024

Abstract The knowledge regarding the origins of life from inanimate materials is still elusive. It was proposed that biological building blocks evolved inorganic substances present in early earth conditions. However, process by which chemistry can be converted into biology has not yet been achieved laboratory. artificial system out‐of‐equilibrium state must maintain a few critical features life, like compartmentalization, metabolism, and replication, to considered alive. In this direction, working with cysteine (Cys)‐based molecules strategic understand evolution process. presence sulphydryl (−SH) group Cys‐residue build dynamic equilibrium through disulfide redox under proper guidance oxidizing reducing agents. review article, our primary focus discuss Cys‐containing short‐peptide‐based self‐assembly disassembly processes. formation bonds sometimes helps gelation, but reverse also true some cases. later part we cover fact these sulphydryl‐based systems have shown their adaptability mimic different life‐essential criteria participate Darwinian evolution.

Language: Английский

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Spatially Controlled Self‐Assembly of Supramolecular Hydrogels Enabled by Light‐Triggered Catalysis

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

Published: Feb. 7, 2025

Spatial control over supramolecular self-assembly prevails in living system, yet remains difficult to replicate synthetic scenarios. Here, on the basis of a hydrazone formation-mediated hydrogelation access patterning hydrogels is demonstrated via light-triggered catalysis strategy. A photoacid generator that can produce protons aqueous solutions upon irradiation employed. The generated lead drop pH around three units (initial 7.0), effectively accelerating formation and gelators. Because catalysis, samples presence show lower critical gelation concentration, higher stiffness, denser networks. Importantly, by performing selective using differently shaped masks, various spatially resolved following shapes masks are fabricated. concept realize spatial provides an alternative approach toward bottom-up fabrication structured soft materials for applications such as tissue engineering, single cell manipulation, biosensing.

Language: Английский

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Spatiotemporal control over self-assembly of supramolecular hydrogels through reaction–diffusion

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 664, P. 938 - 945

Published: March 17, 2024

Language: Английский

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Forging out-of-equilibrium supramolecular gels

Nature Synthesis, Journal Year: 2024, Volume and Issue: 3(12), P. 1481 - 1489

Published: Sept. 6, 2024

Language: Английский

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Chemical reaction steers spatiotemporal self‐assembly of supramolecular hydrogels

ChemPlusChem, Journal Year: 2024, Volume and Issue: unknown

Published: June 26, 2024

Supramolecular structures are widespread in living system, which usually spatiotemporally regulated by sophisticated metabolic processes to enable vital biological functions. Inspired tremendous efforts have been made realize spatiotemporal control over the self-assembly of supramolecular materials synthetic scenario coupling chemical reaction with molecular process. In this review, we focused on works related hydrogels that space and time using reaction. Firstly, summarized how spatially controlled can be achieved via reaction-instructed self-assembly, application such a methodology biotherapy was discussed as well. Second, reviewed dynamic dictated networks evolve their properties against time. Third, recent progresses both though reaction-diffusion-coupled approach. Finally, provided perspective further development future.

Language: Английский

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15-Crown-5-ether-based supramolecular hydrogel with selection ability for potassium cation via gelation and colour change

Soft Matter, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

We developed a benzo-15-crown-5-ether (B15C5)-based supramolecular hydrogel, which exhibits colour change and gelation in response to colourless potassium cations (K + ) via sandwich complexation of B15C5/K /B15C5.

Language: Английский

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