Hyaluronidase‐Responsive Bactericidal Cryogel for Promoting Healing of Infected Wounds: Inflammatory Attenuation, ROS Scavenging, and Immune Regulation DOI Creative Commons
Menglong Liu, Rui Ding, Zheng Li

и другие.

Advanced Science, Год журнала: 2024, Номер 11(17)

Опубликована: Фев. 13, 2024

Abstract Wounds infected with multidrug‐resistant (MDR) bacteria are increasingly threatening public health and challenging clinical treatments because of intensive bacterial colonization, excessive inflammatory responses, superabundant oxidative stress. To overcome this malignant burden promote wound healing, a multifunctional cryogel (HA/TA2/KR2) composed hyaluronic acid (HA), tannic (TA), KR‐12 peptides is designed. The exhibited excellent shape‐memory properties, strong absorption performance, hemostatic capacity. In vitro experiments demonstrated that in the can be responsively released by stimulation hyaluronidase produced bacteria, reaching robust antibacterial activity against Escherichia coli ( E. coli) , MDR Pseudomonas aeruginosa (MDR‐PA), methicillin‐resistant Staphylococcus aureus (MRSA) disrupting cell membranes. Furthermore, synergetic effect TA efficiently scavenge ROS decrease expression pro‐inflammatory cytokines (tumor necrosis factor (TNF)‐α & interleukin (IL)−6), as well modulate macrophage phenotype toward M2 type. vivo animal tests indicated effectively destroy healing process via accelerating angiogenesis re‐epithelialization. Proteomic analysis revealed underlying mechanism which mainly reshaped microenvironment inhibiting Nuclear kappa B (NF‐κB) signaling pathway activating Janus kinase‐Signal transducer activator transcription (JAK‐STAT6) pathway. Therefore, HA/TA2/KR2 promising dressing candidate for bacteria‐infected healing.

Язык: Английский

Piezocatalytic Medicine: An Emerging Frontier using Piezoelectric Materials for Biomedical Applications DOI
Si Chen,

Piao Zhu,

Lijie Mao

и другие.

Advanced Materials, Год журнала: 2023, Номер 35(25)

Опубликована: Янв. 12, 2023

Abstract Emerging piezocatalysts have demonstrated their remarkable application potential in diverse medical fields. In addition to ultrahigh catalytic activities, inherent and unique charge‐carrier‐releasing properties can be used initiate various redox reactions, displaying bright prospects for future applications. Triggered by mechanical energy, piezocatalytic materials release electrons/holes, catalyze reactions of substrates, or intervene biological processes promote the production effector molecules purposes, such as decontamination, sterilization, therapy. Such a piezocatalysis is termed medicine (PCM) herein. To pioneer novel technologies, especially therapeutic modalities, this review provides an overview state‐of‐the‐art research progress medicine. First, principle preparation methodologies piezoelectric are introduced. Then, comprehensive summary applications tumor treatment, antisepsis, organic degradation, tissue repair regeneration, biosensing provided. Finally, main challenges perspectives discussed proposed, expecting fuel development emerging scientific discipline.

Язык: Английский

Процитировано

220

Metalated covalent organic frameworks: from synthetic strategies to diverse applications DOI
Qun Guan, Lele Zhou, Yu‐Bin Dong

и другие.

Chemical Society Reviews, Год журнала: 2022, Номер 51(15), С. 6307 - 6416

Опубликована: Янв. 1, 2022

This review highlights the recent advances of metalated covalent organic frameworks, including synthetic strategies and applications, discusses current challenges future directions.

Язык: Английский

Процитировано

219

Microenvironment‐Based Diabetic Foot Ulcer Nanomedicine DOI Creative Commons

Fang Huang,

Xiangyu Lu, Yan Yang

и другие.

Advanced Science, Год журнала: 2022, Номер 10(2)

Опубликована: Ноя. 24, 2022

Diabetic foot ulcers (DFU), one of the most serious complications diabetes, are essentially chronic, nonhealing wounds caused by diabetic neuropathy, vascular disease, and bacterial infection. Given its pathogenesis, DFU microenvironment is rather complicated characterized hyperglycemia, ischemia, hypoxia, hyperinflammation, persistent However, current clinical therapies for dissatisfactory, which drives researchers to turn attention advanced nanotechnology address therapeutic bottlenecks. In last decade, a large number multifunctional nanosystems based on have been developed with positive effects in therapy, forming novel concept "DFU nanomedicine". systematic overview nanomedicine still unavailable literature. This review summarizes microenvironmental characteristics DFU, presents main progress wound healing, summaries state-of-the-art strategies DFU. Furthermore, challenges future perspectives this field discussed prospected, aiming fuel foster development nanomedicines successfully.

Язык: Английский

Процитировано

208

Recent progress of antibacterial hydrogels in wound dressings DOI Creative Commons
Ben Jia, Guowei Li, Ertai Cao

и другие.

Materials Today Bio, Год журнала: 2023, Номер 19, С. 100582 - 100582

Опубликована: Фев. 16, 2023

Hydrogels are essential biomaterials due to their favorable biocompatibility, mechanical properties similar human soft tissue extracellular matrix, and repair properties. In skin wound repair, hydrogels with antibacterial functions especially suitable for dressing applications, so novel hydrogel dressings have attracted widespread attention, including the design of components, optimization preparation methods, strategies reduce bacterial resistance, etc. this review, we discuss fabrication challenges associated crosslinking methods chemistry materials. We investigated advantages limitations (antibacterial effects mechanisms) different components in achieve good properties, response stimuli such as light, sound, electricity resistance. Conclusively, provide a systematic summary findings (crosslinking methods) an outlook on long-lasting effects, broader spectrum, diversified forms, future development prospects field.

Язык: Английский

Процитировано

198

Infection microenvironment-related antibacterial nanotherapeutic strategies DOI
Zhe Wang, Xingyun Liu, Yanwen Duan

и другие.

Biomaterials, Год журнала: 2021, Номер 280, С. 121249 - 121249

Опубликована: Ноя. 11, 2021

Язык: Английский

Процитировано

184

Copper Doped Carbon Dots for Addressing Bacterial Biofilm Formation, Wound Infection, and Tooth Staining DOI

Meng Liu,

Ling Huang, Xingyi Xu

и другие.

ACS Nano, Год журнала: 2022, Номер 16(6), С. 9479 - 9497

Опубликована: Июнь 17, 2022

Oral infectious diseases and tooth staining, the main challenges of dental healthcare, are inextricably linked to microbial colonization formation pathogenic biofilms. However, dentistry has so far still lacked simple, safe, universal prophylactic options therapy. Here, we report copper-doped carbon dots (Cu-CDs) that display enhanced catalytic (catalase-like, peroxidase-like) activity in oral environment for inhibiting initial bacteria (Streptococcus mutans) adhesion subsequent biofilm eradication without impacting surrounding tissues via oxygen (O2) reactive species (ROS) generation. Especially, Cu-CDs exhibit strong affinity lipopolysaccharides (LPS) peptidoglycans (PGN), thus conferring them with excellent antibacterial ability against Gram-positive (Staphylococcus aureus) Gram-negative (Escherichia coli), such they can prevent wound purulent infection promoting rapid healing. Additionally, Cu-CDs/H2O2 system shows a better performance whitening, compared results obtained other alternatives, e.g., CDs clinically used H2O2, particularly its negligible enamel dentin destruction. It is anticipated biocompatible presented this work promising nano-mouthwash eliminating biofilms, prompting healing as well highlighting their significance health management.

Язык: Английский

Процитировано

152

Cationization-Enhanced Type I and Type II ROS Generation for Photodynamic Treatment of Drug-Resistant Bacteria DOI
Shanshan Liu, Bingnan Wang, Yuewen Yu

и другие.

ACS Nano, Год журнала: 2022, Номер 16(6), С. 9130 - 9141

Опубликована: Май 18, 2022

Photodynamic therapy as an emerging phototheranostic approach holds great potential for antibacterial treatment, but is limited by compromised reactive oxygen species (ROS) generation in aggregate and hypoxic microenvironment. Herein, we report a molecular cationization to boost the ROS, especially type I ROS of aggregation-induced emission (AIE) photosensitizers photodynamic treatment drug-resistant bacteria. Such reinforces electron-accepting ability cationic moiety, promotes intersystem crossing (ISC), increases electron separation transfer processes. The resultant CTBZPyI exhibits largely enhanced with predominant hydroxyl radical over its neutral counterpart aggregate. Moreover, also confers bacterial binding moderate inactivation dark. Further light irradiation leads superb performance, which healing process MRSA-infected wound. strategy expected be general design highly effective infection treatment.

Язык: Английский

Процитировано

142

Versatile Hydrogel Dressing with Skin Adaptiveness and Mild Photothermal Antibacterial Activity for Methicillin‐Resistant Staphylococcus Aureus‐Infected Dynamic Wound Healing DOI Creative Commons
Peng Zhao, Yu Zhang,

Xiaoai Chen

и другие.

Advanced Science, Год журнала: 2023, Номер 10(11)

Опубликована: Фев. 12, 2023

Bacterial infection often induces chronic repair of wound healing owing to aggravated inflammation. Hydrogel dressing exhibiting intrinsic antibacterial activity may substantially reduce the use antibiotics for infected management. Hence, a versatile hydrogel (rGB/QCS/PDA-PAM) skin adaptiveness on dynamic wounds and mild photothermal is developed safe efficient treatment. Phenylboronic acid-functionalized graphene (rGB) oxadiazole-decorated quaternary carboxymethyl chitosan (QCS) are incorporated into polydopamine-polyacrylamide (PDA-PAM) network with multiple covalent noncovalent bonds, which conferred flexible mechanical properties, strong tissue adhesion excellent self-healing ability wounds. Moreover, glycocalyx-mimicking phenylboronic acid surface rGB enables specifically capture bacteria. The enhanced membrane permeability QCS bacterial vulnerability therapy(PTT), demonstrated by PTT antibacteria against methicillin-resistant Staphylococcus aureus in vitro vivo at temperatures <49.6 °C. Consequently, demonstrate accelerated regeneration MRSA-infected vivo, an intact epidermis, abundant collagen deposition prominent angiogenesis. Therefore, rGB/QCS/PDA-PAM inherent has considerable potential treating drug-resistant

Язык: Английский

Процитировано

138

Inorganic–organic hybrid nanomaterials for photothermal antibacterial therapy DOI
Xiaoliang Qi,

Yajing Xiang,

Erya Cai

и другие.

Coordination Chemistry Reviews, Год журнала: 2023, Номер 496, С. 215426 - 215426

Опубликована: Сен. 6, 2023

Язык: Английский

Процитировано

136

Construction of a 980 nm laser-activated Pt(II) metallacycle nanosystem for efficient and safe photo-induced bacteria sterilization DOI
Yuling Xu,

Chonglu Li,

Jusung An

и другие.

Science China Chemistry, Год журнала: 2022, Номер 66(1), С. 155 - 163

Опубликована: Дек. 8, 2022

Язык: Английский

Процитировано

117