Dynamically mechanochromic, fluorescence-responsive, and underwater sensing cellulose nanocrystal-based conductive elastomers

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 296, P. 139681 - 139681

Published: Jan. 10, 2025

Language: Английский

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Mussel‐Inspired Highly Sensitive, Stretchable, and Self‐Healable Yarns Enabled by Dual Conductive Pathways and Encapsulation for Wearable Electronics

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

Published: Jan. 16, 2025

Abstract Wearable electronic textiles, capable of detecting human motions and recognizing gestures, represent the forefront personalized electronics. However, integration high stretchability, sensitivity, durability, self‐healable/self‐bondable capabilities into one platform remains challenging. Herein, mussel‐inspired stretchable, sensitive, self‐healable/self‐bonded conductive yarns enabled by dual electron transfer pathways encapsulation technology are presented. Specifically, covered spandex provide necessary stretchability adsorption capacity, while supramolecular polydopamine layer affords enhanced interfacial interactions. Reduced graphene oxide nanosheets silver nanoparticle‐based sensing layers offer pathways. Dual encapsulations with ability not only mitigate crack propagation but also protect inner materials from detachment. Benefiting these rational designs, composite exhibit a large range (158% strain), sensitivity (22.88), low detection limit (0.0345%), fast response/recovery times (105/150 ms), remarkable robustness (enduring 10 000 cycles at 20% strain). Furthermore, pressure sensors arrays assembled stacking perpendicularly using self‐bondable function, self‐healable helical‐structured conductors fabricated through shape‐memory effect. Important applications multifunctional in physiological motion detection, gesture recognition, circuit connection demonstrated. This concept creates opportunities for construction high‐performance wearable textiles.

Language: Английский

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Reactive 3D printed silanized cellulose nanofiber aerogels for solar-thermal regulatory cooling

Composites Part A Applied Science and Manufacturing, Journal Year: 2025, Volume and Issue: unknown, P. 108761 - 108761

Published: Jan. 1, 2025

Language: Английский

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Self‐Healing Yet Strong Actuator Materials with Muscle‐Like Diastole and Contraction via Multilevel Relaxations

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

Published: Dec. 10, 2024

Skeletal muscles represent a role model in soft robotics featuring agile locomotion and incredible mechanical robustness. However, existing actuators lack an optimal combination of actuation parameters (including modes, work capacity, strength, damage repair) to rival biological tissues. Here, biomimetic structural design strategy via multilevel relaxations (α/β/γ/δ-relaxation) modulation is proposed for robust healable actuator materials with muscle-like diastole contraction abilities by orientational alignment dendritic polyphenol-modified nano-assembles eutectogels. The anisotropic hierarchical micro-nanostructures assembled supramolecular interaction mimic the relative slippage actin filaments myosin muscles, ensuring bistable through rapid thermal α-relaxation expansion. Furthermore, kinetically active secondary β/γ/δ-relaxation at reconfigurable interfaces can conquer limited self-healing ability fixed-orientation polymeric chains. obtained artificial muscle exhibits high output actuation, properties (tensile strength 33.5 MPa), desired functional, efficiency (89.7%), exceeding typical natural living systems. bionic micro-nano achieves bottom-up cooperative relaxation integrate all-round performance which paves way substantial advancements next-generation intelligent robotics.

Language: Английский

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Kinetic, Isothermal and Thermodynamic Study on the Removal of Hexavalent Chromium with Biocomposites (Cellulose–PLA)

Journal of Composites Science, Journal Year: 2025, Volume and Issue: 9(1), P. 36 - 36

Published: Jan. 14, 2025

Currently, water is being polluted via various anthropogenic activities, resulting in wastewater contaminated with multiple pollutants, including heavy metals. Hexavalent chromium a toxic metal that poses significant health risks upon exposure. Biocomposites are materials partially composed of organic substances enhance different properties composite. The aim this study was to evaluate the kinetic, isothermal, and thermodynamic behaviour cellulose-based biocomposite polylactic acid (PLA) for removal Cr (VI) from synthetic water. results indicated Freundlich Elovich models provided best fit isothermal kinetic data, R2 values 0.671 0.973, respectively, suggesting adsorption process chemical nature occurred on heterogeneous, multilayer surface. Additionally, analysis revealed exothermic, irreversible, non-spontaneous. This presents an innovative approach ions using cellulose–PLA treatment, offering data applicable other

Language: Английский

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Innovative applications of bio-inspired technology in bio-based food packaging

Critical Reviews in Food Science and Nutrition, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 14

Published: Jan. 15, 2025

Traditionally, food packaging was used to extend the shelf life of or monitor its condition. Inspired by many biological structures found in nature, bio-inspired functional materials for bio-based have been shown significantly improved capabilities over traditional various aspects and attract consumers through novel freshness preservation features. This review synthesizes recent advances that mimic structure natural organisms with specific functionalities, examples biomimetics different enhancement areas. In general, certain disadvantages compared polymer materials, so there is an urgent need improvement Biomimicry further inspires realization enhancing some basic functions (hydrophobicity, mechanical strength, antimicrobial properties, optical properties) endowing more new responsiveness other functions. What interesting inspiration bionics taken from such a perspective can also promote progress innovation materials.

Language: Английский

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BSA/PEI/GOD Modified Cellulose Nanocrystals for Construction of Hydrogel-Based Flexible Glucose Sensors for Sweat Detection

Journal of Materials Chemistry B, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

With the miniaturization, integration and intelligence of sweat electrochemical sensor technology, hydrogel flexible sensors have demonstrated immense potential in field real-time non-invasive personal health monitoring.

Language: Английский

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Green Facile fabrication of Flame-retardant Straw Cellulose Nanofiber Laminate with Enhanced Mechanical Strength

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112377 - 112377

Published: March 1, 2025

Language: Английский

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Solvation Chemistry Enables Eutectogels with Ultrahigh Autofluorescence, Toughness, and Adhesion under Extreme Environments

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

Published: Aug. 26, 2024

Abstract Compared to conventional gels, eutectogels encompassing deep eutectic solvents (DESs) circumvent the shortboards including poor temperature resistance, high cost, and undesired toxicity. However, existing suffer weak intra‐ interchain interactions, which culminates in vanishing autofluorescence, mechanic feeble adhesion. Although myriad strategies have been proposed boost polymer/polymer interactions within processes are time‐consuming, not suitable for mass production or emergent deployment. Herein, deal with it, a facile solvation chemistry is leveraged build dynamic rigid network via incorporating active polymer backbones DESs. Within these eutectogels, DESs play magnet‐like role, physically cluster chains together multiple noncovalent forces, thus intensifying DESs/polymer interactions. This bestows rare autofluorescence unprecedentedly strength, toughness, adhesion among reported analogues, even harsh conditions. Moreover, mechanism of fully scrutinized first time. It believed that this strategy can be easily expanded orchestrations other soft materials.

Language: Английский

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Mechanical sensing by cellulose-aided composites: A critical overview

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112145 - 112145

Published: Jan. 1, 2025

Language: Английский

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