Bioinspired Underwater Adhesives

Advanced Materials, Год журнала: 2021, Номер 33(44)

Опубликована: Сен. 17, 2021

Abstract Underwater adhesives are in high demand both commercial and industrial sectors. Compared with used dry (air) environments, for wet or submerged surfaces aqueous environments have specific challenges development performance. In this review, focus is on demonstrating macroscopic adhesion to wet/underwater substrates. The current strategies first introduced different types of underwater adhesives, then an overview provided the performance based mechanisms strategies. Finally, possible research directions prospects discussed.

Язык: Английский

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Metal Ion-Directed Functional Metal–Phenolic Materials

Chemical Reviews, Год журнала: 2022, Номер 122(13), С. 11432 - 11473

Опубликована: Май 10, 2022

Metal ions are ubiquitous in nature and play significant roles assembling functional materials fields spanning chemistry, biology, science. Metal-phenolic assembled from phenolic components the presence of metal through formation metal-organic complexes. Alkali, alkali-earth, transition, noble as well metalloids interacting with building blocks have been widely exploited to generate diverse hybrid materials. Despite extensive studies on synthesis metal-phenolic materials, a comprehensive summary how guide assembly compounds is lacking. A fundamental understanding engineering will facilitate specific properties. In this review, we focus diversity function material emerging applications. Specifically, discuss range underlying interactions, including (i) cation-π, (ii) coordination, (iii) redox, (iv) dynamic covalent highlight wide properties resulting these interactions. Applications (e.g., biological, catalytic, environmental) perspectives also highlighted.

Язык: Английский

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Tannic acid: a crosslinker leading to versatile functional polymeric networks: a review

RSC Advances, Год журнала: 2022, Номер 12(13), С. 7689 - 7711

Опубликована: Янв. 1, 2022

With the thriving of mussel-inspired chemistry and demand for low-cost analogues to polydopamine in adhesive design, tannic acid has become a research focus because its wide availability, health benefits special chemical properties.

Язык: Английский

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Dual-crosslinked mussel-inspired smart hydrogels with enhanced antibacterial and angiogenic properties for chronic infected diabetic wound treatment via pH-responsive quick cargo release

Chemical Engineering Journal, Год журнала: 2021, Номер 411, С. 128564 - 128564

Опубликована: Янв. 20, 2021

Язык: Английский

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Multifunctional conductive hydrogels and their applications as smart wearable devices

Journal of Materials Chemistry B, Год журнала: 2021, Номер 9(11), С. 2561 - 2583

Опубликована: Янв. 1, 2021

Recently, hydrogel-based conductive materials and their applications as smart wearable devices have been paid tremendous attention due to high stretchability, flexibility, excellent biocompatibility. Compared with single functional hydrogels, multifunctional hydrogels are more advantageous match various demands for practical applications. This review focuses on applied devices. Representative strategies conduction of discussed firstly: (1) electronic based the fillers (2) ionic charged ions. Then, common intensive research multiple functionalities such mechanical properties, sensory anti-freezing moisturizing adhesion self-healing properties is presented. The in human motion sensors, skins, personal healthcare diagnosis provided third part. Finally, we offer our perspective open challenges future areas interest used

Язык: Английский

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Tailoring Gelation Mechanisms for Advanced Hydrogel Applications

Advanced Functional Materials, Год журнала: 2020, Номер 30(42)

Опубликована: Авг. 18, 2020

Abstract Hydrogels are one of the most commonly explored classes biomaterials. Their chemical and structural versatility has enabled their use across a wide range applications, including tissue engineering, drug delivery, cell culture. form upon sol–gel transition, which can be elicited by different triggers designed to enable precise control over hydrogelation kinetics hydrogel structure. The chosen trigger chemistry have profound effect on success targeted application. In this Progress Report, critical overview recent advances in design is presented, with focus available strategies used formation networks (e.g., temperature, light, ultrasound). These presented within new classification system, suitability for six key hydrogel‐based applications assessed. This Report intended guide selection inspire rational mechanisms.

Язык: Английский

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Antibacterial conductive self-healing hydrogel wound dressing with dual dynamic bonds promotes infected wound healing

Bioactive Materials, Год журнала: 2023, Номер 30, С. 129 - 141

Опубликована: Июль 28, 2023

In clinical applications, there is a lack of wound dressings that combine efficient resistance to drug-resistant bacteria with good self-healing properties. this study, series adhesive conductive antibacterial hydrogel based on oxidized sodium alginate-grafted dopamine/carboxymethyl chitosan/Fe3+ (OSD/CMC/Fe hydrogel)/polydopamine-encapsulated poly(thiophene-3-acetic acid) (OSD/CMC/Fe/PA hydrogel) were prepared for the repair infected wound. The Schiff base and Fe3+ coordination bonds structure are dynamic can be repaired automatically after network disrupted. Macroscopically, exhibits properties, allowing dressing adapt complex surfaces. OSD/CMC/Fe/PA showed conductivity photothermal properties under near-infrared (NIR) light irradiation. addition, hydrogels exhibit tunable rheological suitable mechanical antioxidant tissue adhesion hemostatic Furthermore, all improved healing in full-thickness defect skin test mice. size by OSD/CMC/Fe/PA3 + NIR was much smaller (12%) than control group treated Tegaderm™ film 14 days. conclusion, have high efficiency, conductivity, great biocompatibility, hemostasis making them promising candidates treatment wounds.

Язык: Английский

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Mussel-inspired nanozyme catalyzed conductive and self-setting hydrogel for adhesive and antibacterial bioelectronics

Bioactive Materials, Год журнала: 2021, Номер 6(9), С. 2676 - 2687

Опубликована: Фев. 15, 2021

Adhesive hydrogels have broad applications ranging from tissue engineering to bioelectronics; however, fabricating adhesive with multiple functions remains a challenge. In this study, mussel-inspired tannic acid chelated-Ag (TA-Ag) nanozyme peroxidase (POD)-like activity was designed by the in situ reduction of ultrasmall Ag nanoparticles (NPs) TA. The TA-Ag exhibited high catalytic induce hydrogel self-setting without external aid. retained abundant phenolic hydroxyl groups and maintained dynamic redox balance phenol-quinone, providing long-term repeatable adhesiveness, similar adhesion mussels. also afforded uniform distribution network, thereby improving its mechanical properties conductivity. Furthermore, endowed antibacterial through synergistic effects reactive oxygen species generated via POD-like reactions intrinsic bactericidal Ag. Owing these advantages, nanozyme-catalyzed could be effectively used as an adhesive, antibacterial, implantable bioelectrode detect bio-signals, wound dressing accelerate regeneration while preventing infection. Therefore, study provides promising approach for fabrication bioelectronics catalysis.

Язык: Английский

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Recent applications of immunomodulatory biomaterials for disease immunotherapy

Exploration, Год журнала: 2022, Номер 2(6)

Опубликована: Май 23, 2022

Immunotherapy is used to regulate systemic hyperactivation or hypoactivation treat various diseases. Biomaterial-based immunotherapy systems can improve therapeutic effects through targeted drug delivery, immunoengineering, etc. However, the immunomodulatory of biomaterials themselves cannot be neglected. In this review, we outline with functions discovered in recent years and their applications disease treatment. These inflammation, tumors, autoimmune diseases by regulating immune cell function, exerting enzyme-like activity, neutralizing cytokines, The prospects challenges biomaterial-based modulation are also discussed.

Язык: Английский

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Recent Progress of Highly Adhesive Hydrogels as Wound Dressings

Biomacromolecules, Год журнала: 2020, Номер 21(10), С. 3966 - 3983

Опубликована: Сен. 22, 2020

Wound dressings are widely used to promote wound healing. Traditional need the help of tape fix onto wounds, which not suitable in human body. In addition, hemostasis internal wounds is usually treated with direct sutures will cause secondary trauma patient and increase risk infection. Therefore, development new high tissue adhesion biocompatibility great clinical significance. The highly adhesive can firmly attach external form a barrier prevent bacterial invasion, accelerate healing, avoid damage caused by sutures. Hydrogels soft materials that possess 3D network structure tunable physical chemical properties, provides ideal conditions support healing process. this review, we summarize recent advances developing hydrogel-based as well their mechanism. Moreover, prospects these over coming years also covered.

Язык: Английский

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