具有动态分子和微环境可激活的化特性的多功能多素,用于治疗耐药细菌感染的慢性皮肤伤口
Jian Wu1, Zhen Wang1, Hui Xing1
1State Key Laboratory of Bioactive Molecules and Druggability Assessment, Institute of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
ACS applied materials & interfaces
|August 23, 2025
概括
一种基于多的新型水凝有效地治疗了耐药性感染的糖尿病伤口. 它释放氧化 (NO) 并具有对酸反应的抗菌性质,促进愈合和减少炎症.
科学领域:
- 生物材料科学
- 复原医学
- 传染性疾病
背景情况:
- 糖尿病的伤口愈合是复杂的,易患多药性感染.
- 传统的水凝由于治疗分子释放受限且抗菌作用不特异,效果有限.
研究的目的:
- 开发一种新型的基于聚氨酸的水凝 (FDS),用于治疗因耐药细菌感染而复杂的糖尿病伤口.
- 设计水凝以控制氧化 (NO) 释放和对酸反应的抗菌活性.
主要方法:
- 在F-127DA共聚物骨干上组装SNO修饰的β-环氧.
- 与二甲基氨基甲基胺 (DMAPMA) 共聚合,形成FDS水凝.
- 在体外和体内评估了抗菌,生物膜分散,血管新生,抗炎和伤口愈合作用.
主要成果:
- FDS水凝对黄金葡萄球菌和抗甲素黄金葡萄球菌表现出强烈的抗菌活性.
- 具有显著的生物膜分散能力和增强的血管生成.
- 显示减少炎症反应和加速慢性糖尿病伤口的愈合.
结论:
- FDS水凝的可移动分子定促进了NO的传递和微环境可激活的抗菌活性.
- 这种新的水凝为患有细菌感染的糖尿病患者提供了一个有前途的治疗策略.
- 这项研究为治疗糖尿病患者难治的伤口感染提供了新的希望.
相关概念视频
Hand hygiene
5.3K
Asepsis is the practice of preventing or breaking the chain of infection. The nurse employs aseptic techniques to prevent the spread of microorganisms and reduce the risk of diseases. Hand hygiene is the cornerstone of aseptic techniques and is classified into medical and surgical asepsis. Medical asepsis includes hand hygiene and the use of gloves. Surgical asepsis, or the sterile technique, refers to practices that render and keep objects and areas free of microorganisms.
Hand washing...
Hand washing...
5.3K
Chemical Agents for Microbial Control
1.7K
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
1.7K
Microbial Bioremediation of Pesticides
96
Pesticides often feature structurally complex chemical architectures, incorporating halogen groups and multiple aromatic rings. These characteristics confer high chemical stability, rendering many pesticides resistant to natural degradation processes. This resistance poses significant environmental concerns, as persistent pesticide residues can accumulate in ecosystems and affect non-target organisms.Despite the inherent stability of many pesticides, certain microorganisms possess the metabolic...
96
iChip
108
The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...
108
The Skin Microbiota
135
The human skin serves as a complex ecosystem inhabited by a diverse community of microorganisms, including bacteria, fungi, and viruses. This microbiome plays a critical role in maintaining skin health and defending against pathogenic invaders. The composition of microbial communities varies significantly across different regions of the body, influenced primarily by the local levels of moisture and sebum.Regional Variation in Skin MicrobiotaCutibacterium acnes predominantly colonizes sebaceous...
135
Clinical Significance of Antibiotic Resistance
115
Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within...
115


