Anti‐Dehydration and Rapid Trigger‐Detachable Multifunctional Hydrogels Promote Scarless Therapeutics of Deep Burn

Advanced Functional Materials, Год журнала: 2023, Номер 33(17)

Опубликована: Фев. 1, 2023

Abstract There are issues and challenges in treating deep burns because of the long recovery time, frequent dressing changes, wound infection, easy to form scar that influence aesthetics. Besides, some specific tissues not suitable for large coverage (e.g., face, perineum). Therefore, an ideal burn should have good adhesion properties fit effectively, painless quick replacement, resistant accelerate healing, reduce scarring facilitate monitoring diagnosis. Herein, anti‐dehydration rapid‐trigger multifunctional hydrogel is prepared by interface reaction. The Pacrylamide‐Formylboronicacid‐Tannic acid (PAFT) hydrogels a simple method on elastomeric membrane, which obtained using tannic as dynamic cross‐linking agent with 3‐formylboronic acrylamideunder UV light. exhibits strong interfacial (892 J m −2 ± 65 ), rapidly (2 min) decreases (to 180 20 ) when presence glucose solution. has excellent moisturizing properties, also superior antibacterial hemostasis, biocompatibility. This transparent allowing effective observation transformation therapeutics. Moreover, PAFT accelerates healing reduces scars.

Язык: Английский

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Nature-inspired adhesive systems

Chemical Society Reviews, Год журнала: 2024, Номер 53(16), С. 8240 - 8305

Опубликована: Янв. 1, 2024

Many organisms in nature thrive intricate habitats through their unique bio-adhesive surfaces, facilitating tasks such as capturing prey and reproduction. It's important to note that the remarkable adhesion properties found these natural biological surfaces primarily arise from distinct micro- nanostructures and/or chemical compositions. To create artificial with superior capabilities, researchers delve deeper into underlying mechanisms of captivating phenomena draw inspiration. This article provides a systematic overview various different mechanisms, focusing on surface chemistry, offering design principles for counterparts. Here, basic interactions models are introduced first. will be followed by an exploration research advancements adhesive including both dry wet/underwater along relevant characterization techniques. Special attention is paid stimulus-responsive smart tunable properties. The goal spotlight recent advancements, identify common themes, explore fundamental distinctions pinpoint present challenges prospects this field.

Язык: Английский

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Desirable Strong and Tough Adhesive Inspired by Dragonfly Wings and Plant Cell Walls

ACS Nano, Год журнала: 2024, Номер 18(13), С. 9451 - 9469

Опубликована: Март 7, 2024

The production of wood-based panels has a significant demand for mechanically strong and flexible biomass adhesives, serving as alternatives to nonrenewable toxic formaldehyde-based adhesives. Nonetheless, plywood usually exhibits brittle fracture due the inherent trade-off between rigidity toughness, it is susceptible damage deformation defects in applications. Herein, inspired by microstructure dragonfly wings cross-linking structure plant cell walls, soybean meal (SM) adhesive with great strength toughness was developed. strategy combined multiple assembly system based on tannic acid (TA) stripping/modification molybdenum disulfide (MoS2@TA) hybrids, phenylboronic acid/quaternary ammonium doubly functionalized chitosan (QCP), SM. Motivated wings, MoS2@TA tightly bonded SM framework through Schiff base hydrogen bonding dissipate stress energy crack deflection, bridging, immobilization. QCP imitated borate chemistry walls optimize interfacial interactions within ester bonds, boron–nitrogen coordination electrostatic sacrificial bonding. shear SM/QCP/MoS2@TA were 1.58 MPa 0.87 J, respectively, which 409.7% 866.7% higher than those pure adhesive. In addition, gave good mildew resistance, durability, weatherability, fire resistance. This bioinspired design offers viable sustainable approach creating multifunctional tough biobased materials.

Язык: Английский

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Bioinspired Conductivity-Enhanced, Self-Healing, and Renewable Silk Fibroin Hydrogel for Wearable Sensors with High Sensitivity

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

Опубликована: Янв. 28, 2025

The development of silk fibroin-based hydrogels with excellent biocompatibility, aqueous processability, and facile controllability in structure is indeed an exciting advancement for biological research strain sensor applications. However, hydrogel sensors that combine high conductivity, stretchability, reusability, selectivity are still desired. Herein, we report a simple method preparing double-network including fibroin poly(acrylic acid) sodium-polyacrylate (PAA-PAAS) networks. conformation aggregate could be facilely tuned by both ions pH resulting from the PAA-PAAS network. optimized exhibits intriguing properties, such as conductivity (3.67 S/m) transparency, stretchability (1186%) tensile strength 110 kPa, good adhesion reversible compression, self-healing, sensitivity (GF = 10.71). This can detect large-scale small human movements real time, limb movements, heartbeats, pulse. Additionally, its ability to adsorb water recover effectiveness after losing air 90% humidity along capability low-temperature motion detection facilitated ethylene glycol further enhance practical utility. work offers novel approach design flexible bionic sensors.

Язык: Английский

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Cellulose nanocrystals boosted hydrophobic association in dual network polymer hydrogels as advanced flexible strain sensor for human motion detection

Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials, Год журнала: 2022, Номер 138, С. 105610 - 105610

Опубликована: Дек. 7, 2022

Язык: Английский

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Development of chitosan/konjac glucomannan/tragacanth gum tri-layer food packaging films incorporated with tannic acid and ε-polylysine based on mussel-inspired strategy

International Journal of Biological Macromolecules, Год журнала: 2023, Номер 242, С. 125100 - 125100

Опубликована: Май 25, 2023

Язык: Английский

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Advanced Interfacial Design for Electronic Skins with Customizable Functionalities and Wearability

Advanced Functional Materials, Год журнала: 2023, Номер 33(49)

Опубликована: Сен. 8, 2023

Abstract Electronic skins (E‐skins), which are intelligent extensions of the human skin, in great demand because rapid development information technology and intelligence civilization. Essentially, E‐skin systems composed functional interface components. The function portion carries out various functions like sensing, power production, therapy. In addition to ensuring consistent wear comfort, system is necessary for transfer energy or mass between skin components system. serves as foundation, conduit, link systems. wearability functionality significantly impacted by interfacial adhesion intermediate effect. It crucial build accordance with However, there few reviews on impact E‐skins. Here, design thoroughly reviewed, taking into account how mechanisms affect function. At last, future direction perspective next‐generation presented.

Язык: Английский

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A strong, antimildew, and fully bio-based adhesive fabricated by soybean meal and dialdehyde chitosan

Industrial Crops and Products, Год журнала: 2023, Номер 194, С. 116277 - 116277

Опубликована: Янв. 18, 2023

Язык: Английский

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Sweat-adaptive adhesive hydrogel electronics enabled by dynamic hydrogen bond networks

Chemical Engineering Journal, Год журнала: 2024, Номер 492, С. 152290 - 152290

Опубликована: Май 16, 2024

Язык: Английский

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Skin-interfacing wearable biosensors for smart health monitoring of infants and neonates

Communications Materials, Год журнала: 2024, Номер 5(1)

Опубликована: Май 9, 2024

Abstract Health monitoring of infant patients in intensive care can be especially strenuous for both the patient and their caregiver, as testing setups involve a tangle electrodes, probes, catheters that keep bedridden. This has typically involved expensive imposing machines, to track physiological metrics such heart rate, respiration temperature, blood oxygen saturation, pressure, ion concentrations. However, past couple decades, research advancements have propelled world soft, wearable, non-invasive systems supersede current practices. paper summarizes latest neonatal wearable different approaches each branch monitoring, with an emphasis on smart skin-interfaced wearables. Weaknesses shortfalls are also addressed, some guidelines provided help drive further needed.

Язык: Английский

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