Glycosidic bond protection of cellulose during solvent dissolution by coordination interaction competition strategy

Carbohydrate Polymers, Journal Year: 2023, Volume and Issue: 328, P. 121665 - 121665

Published: Dec. 7, 2023

Language: Английский

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3D Printing of Thermo‐Mechano‐Responsive Photoluminescent Noncovalent Cross‐Linked Ionogels with High‐Stretchability and Ultralow‐Hysteresis for Wearable Ionotronics and Anti‐Counterfeiting

Small, Journal Year: 2024, Volume and Issue: 20(43)

Published: June 23, 2024

Abstract Ionogel has recently emerged as a promising ionotronic material due to its good ionic conductivity and flexibility. However, low stretchability significant hysteresis under long‐term loading limit their mechanical stability repeatability. Developing ultralow ionogels with high is of great significance. Here, simple effective strategy developed fabricate highly stretchable ultralow‐hysteresis noncovalent cross‐linked based on phase separation by 3D printing 2‐hydroxypropyl acrylate (HPA) in 1‐butyl‐3‐methylimidazolium tetrafluoroborate (BMIMBF 4 ). Ingeniously, the sea‐island structure physically network constructed smaller nanodomains larger nanodomain clusters significantly minimizes energy dissipation, endowing these remarkable (>1000%), ultra‐low (as 0.2%), excellent temperature tolerance (−33–317 °C), extraordinary (up 1.7 mS cm −1 ), outstanding durability (5000 cycles). Moreover, formation nanophase cross‐linking structure, as‐prepared exhibit unique thermochromic multiple photoluminescent properties, which can synergistically be applied for anti‐counterfeiting encrypting. Importantly, flexible thermo‐mechano‐multimodal visual sensors strain sensing stable reproducible electrical response over 20 000 cycles are fabricated, showing optical output performances.

Language: Английский

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Toward Sustainable Electronics: Exploiting the Potential of a Biodegradable Cellulose Blend for Photolithographic Processes and Eco‐Friendly Devices

Advanced Materials Technologies, Journal Year: 2023, Volume and Issue: 9(1)

Published: Dec. 6, 2023

Flexible electronics has emerged as a promising field for the development of electronic devices with applications in wearables, biomedical sensors, and edible electronics. Biomaterials play crucial role fabricating flexible substrates, utilization polymer blends offers exciting possibilities tuning mechanical chemical properties. This paper highlights potential novel blend based on ethyl cellulose (EC) hydroxypropyl (HPC) fabrication substrates By blending two ethers, it is possible to tune properties final substrate, tailored meet specific requirements. To exploit such innovative green photolithographic processes, their stability, processability extensively investigated. The feasibility processes biodegradable demonstrated by both resistive capacitive sensors through standard presenting breakthrough terms applicability. biomaterials holds tremendous driving technological advancements various fields. These materials pave way catering diverse applications, from agriculture food biomedicine. Importantly, they also promote sustainable approach fabrication, laying foundation an environment‐aware future progress.

Language: Английский

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A cellulose ionogel with rubber-like stretchability for low-grade heat harvesting

Research, Journal Year: 2024, Volume and Issue: 7

Published: Jan. 1, 2024

Achieving rubber-like stretchability in cellulose ionogels presents a substantial challenge due to the intrinsically extended chain configuration of cellulose. Inspired by molecular natural rubber, we address this using cyanoethyl as substitute for 1.5 hydroxyl on D-glucose unit This strategy innovatively triggers transformation molecules into coiled configuration, facilitating creation an ultra-stretchable ionogel free from any petrochemical polymers. The resultant demonstrates mechanical ductility comparable that rubber band, achieving elongation strain nearly 1,000% while maintaining tensile strength up 1.8 MPa and exhibiting biomodulus akin human skin, recorded at 63 kPa. Additionally, stretchable skin-like self-healing behavior, favorable biocompatibility, noteworthy thermoelectric properties, highlighted Seebeck coefficient approximately 68 mV K −1 . study delineates feasible approach developing biomass resources, potentially revolutionizing self-powered electronics integration with tissues skin.

Language: Английский

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Accelerated Hydrogel Strengthening: Synergy between Mechanical Training and Lignin Intake

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 8, 2025

The construction of high-strength hydrogels is essential for engineering applications but often limited by poor durability under stress. Current post-treatment methods are inefficient and time consuming. Inspired muscle building, we propose a green, efficient, synergistic enhancement method. dynamic stretching the PVA hydrogel in LS solution promotes formation an ordered polymer network, while can fix structure. After 500 cycles (approximately 16.7 min), tensile strength, toughness, Young's modulus increase 76-fold, 117-fold, 304-fold, respectively, outperforming single treatments such as soaking or training. Multitechnique analyses reveal that nanoscale crystalline domains microscale-ordered polymers drive these macroscopic improvements. Notably, be substituted with other solvents to achieve similar effects, demonstrating excellent adaptability, scalability, efficiency. This rapid straightforward technology holds great promise overcoming challenges constructing applying hydrogels.

Language: Английский

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