Multifunctional, High-Strength Electronic Skin Based on the Natural Sheepskin Fiber Network for Multifaceted Human Health Monitoring and Management

Biomacromolecules, Год журнала: 2024, Номер 25(8), С. 5359 - 5373

Опубликована: Июль 24, 2024

Inspired by the animal skin fiber network, we developed an electronic (e-skin) utilizing natural sheepskin as primary substrate. This innovative design addresses limitations of conventional e-skins, including inadequate mechanical strength, overly complex artificial network construction, and limited health monitoring capabilities. e-skin successfully retains structure properties while exhibiting exceptional strength (with a breaking 4.01 MPa) high elongation at break 304.8%). Moreover, it possesses various desirable attributes such electrical conductivity, antibacterial properties, biocompatibility, environmental stability. In addition, this has advantage diverse data collection (joint movement, bioelectricity, foot detection, speech disorder communication systems). Therefore, breaks traditional construction strategy single-mode application is expected to become ideal material for building smart sensor devices.

Язык: Английский

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Carbon Quantum Dot-Functionalized Dermis-Derived Transparent Electronic Skin for Multimodal Human Motion Signal Monitoring and Construction of Self-Powered Triboelectric Nanogenerator

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(35), С. 46771 - 46788

Опубликована: Авг. 21, 2024

Electronic skin (e-skin) is considered as a highly promising interface for human-computer interaction systems and wearable electronic devices. Through elaborate design assembly of various materials, it possesses multiple characteristics similar to human skin, including remarkable flexibility, stretchability, sensitivity temperature humidity, biocompatibility, efficient interfacial ion/electron transport capabilities. Here, we innovatively integrate multifunctional carbon quantum dots (CQDs), which exhibit conductivity, antibacterial properties, ultraviolet absorption, fluorescence emission, with poly(acrylic acid) glycerin (Gly) into three-dimensional network structure natural goatskin collagen fibers. top-down strategy enhanced by hydrogen bond reconstruction, successfully fabricated novel transparent e-skin (PAC-eSkin). This exhibited significant tensile properties (4.94 MPa strength 263.42% maximum breaking elongation), while also possessing Young's modulus (2.32 MPa). It noteworthy that the functionalized CQDs used was derived from discarded goat hair, addition Gly gave PAC-eSkin excellent antifreezing moisturizing properties. Due presence ultrasmall CQDs, creates channels within PAC-eSkin, could rapidly sense motion physiological signals (with gauge factor (GF) 1.88). Furthermore, had potential replace traditional electrode patches real-time monitoring electrocardiogram, electromyogram, electrooculogram signals, higher SNR (signal-to-noise ratio) 25.1 dB. Additionally, customizable size shape offer vast possibilities construction single-electrode triboelectric nanogenerator systems. We have reason believe development this based on CQDs-functionalized dermal matrices can pave new way innovations in human–computer interfaces their sensing application diverse scenarios.

Язык: Английский

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Highly robust, self-adhesive, self-healing, pH-responsive, cytocompatible and degradable collagen/PVA/tannin-based conductive hydrogel sensor for motion-monitoring

Polymer, Год журнала: 2024, Номер 308, С. 127365 - 127365

Опубликована: Июль 6, 2024

Язык: Английский

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Multifunctional Biomimetic e-Skin Constructed In Situ on Tanned Sheep Leather as a Multimodal Sensor for the Monitoring of Motion and Health

Industrial & Engineering Chemistry Research, Год журнала: 2024, Номер 63(32), С. 14176 - 14189

Опубликована: Июль 30, 2024

Bionic electronic skin, with its integrated biological functions, is capable of sensing and responding to external stimuli, potentially surpassing the ideal flexibility natural skin in certain aspects. Most current preparation strategies employ "bottom-up" approach, using various monomers or polymer materials construct artificial networks through physical chemical cross-linking, leading issues complexity limited performance. In this work, we adopted a "top-down" strategy, which collagen fiber network aluminum-tanned sheepskin was utilized as scaffold load itaconic acid (IA) hydroxyethyl acrylate (HEA). The subsequent situ polymerization IA HEA led formation poly(itaconic acid-co-hydroxyethyl acrylate) (P(IA-HEA)) filling among skeleton, results successful fabrication high-strength bionic based on (LIHEZ). advantage approach that it can retain structure properties give resulting LIHEZ multiple functions (e.g., electrical conductivity, adhesion, bacteriostasis, biocompatibility, environmental stability), thereby replicating even performance animal skin. demonstrated sensitive stimulus responsiveness durability could serve multimodal sensors (strain, temperature, humidity, bioelectricity) efficiently monitor human movements, physiological signals, changes temperature humidity. This diversified data collection provides reliable assurance for monitoring health. present construction method substrate not only breaks conventional single applications but also new insights selection flexible device substrates, promising be next-generation material constructing intelligent

Язык: Английский

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Humic acid-based anti-freezing and self-healing hydrogel flexible sensors with functional cellulose nanocrystals

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159854 - 159854

Опубликована: Янв. 1, 2025

Язык: Английский

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Molecularly engineered chitosan-derived poly(aprotic/protic ionic liquids) double-network hydrogel electrolytes for flexible supercapacitors and wearable strain sensors

Chemical Engineering Journal, Год журнала: 2024, Номер 497, С. 154994 - 154994

Опубликована: Авг. 19, 2024

Язык: Английский

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DNA Bioinspired by Polyvinyl alcohol -MXene-Borax Hydrogel for Wearable Skin Sensors

Sensors and Actuators A Physical, Год журнала: 2025, Номер unknown, С. 116331 - 116331

Опубликована: Фев. 1, 2025

Язык: Английский

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Thermoresponsive and Strain-Sensitive Hydrogels with Inscribable Transparency-Based Dynamic Memory Behaviors

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Фев. 28, 2025

Personal health management drives the development of intelligent hydrogel dressings, which pursue optical transparency, stretchability, and conductivity are required to perceive specific environmental stimuli by dynamic structure, shape, or color memory. However, incorporation weak perceptive elements black conductive polymers limits fabrication these hydrogels. Herein, we propose smart hydrogels with inscribable memorizing-forgetting transparency behavior in situ degrading immobilizing polydopamine-doped polypyrrole (PDA-PPy) nanodots into an interpenetrating poly(NIPAm-co-acrylic acid) copolymer/polyacrylamide (PNAc/PAM) network. These not only optically transparent (∼64.99%), stretchable (∼1052%), self-adhesive (21-105 kPa), highly (∼0.8 S/m), but also can temperature changes via structure shifts, enables temperature-induced reversible control. Especially, temperature-dependent transparent-opaque transition kinetics tuned protonation -COOH groups at pH < pKa, utilizing achieve inscribed programmed memory for information memorizing-forgetting-recalling based on a pH-engraved evolution response changes. be used as efficient near-infrared (NIR) light-controlled drug release carriers realize on-demand release, serve soft sensor recognize different body postures movement behaviors high strain sensitivity (gauge factor, GF = 5.98), broad working (5-500%), rapid (139 ms), excellent sensing reliability (≈1000 cycles 50% strain).

Язык: Английский

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Comprehensive review on collagen extraction from food by-products and waste as a value-added material

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 278, С. 134374 - 134374

Опубликована: Авг. 3, 2024

The consumption of animal products has witnessed a significant increase over the years, leading to growing need for industries adopt strict waste control measures mitigate environmental impacts. disposal in landfill can result diverse and potentially hazardous decomposition by-products. Animal by-products, derived from meat, poultry, seafood fish industries, offer substantial raw material source collagen gelatin production due their high protein content. Collagen, being major component tissues, represents an abundant resource that finds application various chemical industries. demand collagen-based continues grow, yet availability primary remains limited insufficient meet projected needs. Consequently, repurposing materials contain provides opportunity this while at same time minimizing amount is dumped. This review examines potential extract value content present animal-derived It systematic evaluation different species groups discusses approaches processing fabricating repurposed collagen. specifically focuses on research, encompassing examination its physical properties, as well modifications. We have detailed how research knowledge built structure function will drive new initiatives lead development opportunities future. Additionally, it highlights emerging extracting high-quality efforts fabricate original within chemical, biomedical science-based

Язык: Английский

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Tough ion-electron conductive hydrogels with multi-crosslinked network for strain sensors

Polymer, Год журнала: 2025, Номер unknown, С. 128060 - 128060

Опубликована: Янв. 1, 2025

Язык: Английский

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