环保纤维素基水凝功能由NIR响应多模式抗菌聚合物离子液作为促进伤口愈合的平台
Wenqi Song1, Tiantian Xu2, Liwei Qian2
1Technological Institute of Materials & Energy Science (TIMES), Xi'an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, School of Electronic Information, Xijing University, Xi'an 710123, PR China.
International journal of biological macromolecules
|June 17, 2023
概括
这项研究介绍了一种新的纤维素伤口包裹,它结合了抗菌特性和光热疗法 (PTT). 这种先进的材料有效杀死细菌,加速伤口愈合,为先进的伤口护理提供了一个有前途的解决方案.
科学领域:
- 生物材料科学 生物材料科学
- 材料化学 材料化学
- 纳米技术纳米技术
背景情况:
- 对综合多种治疗方式的先进伤口包裹的需求日益增长.
- 在医疗保健中需要可持续和有效的抗菌材料.
- 开发具有抗菌性和光热性质的伤口敷料的挑战.
研究的目的:
- 开发一种新型的多式抗菌纤维素伤口包裹 (MACD),结合光热疗法 (PTT).
- 为了研究制造的包裹的抗菌疗效,生物相容性和伤口愈合加速能力.
主要方法:
- 一种具有铁复杂离子结构的伊米达离子液体单体在纤维素上的移植聚合.
- 描述水凝的特性,包括光热转换效率和对S. aureus和E. coli的抗菌活性.
- 通过血液溶解试验和细胞活力试验评估生物相容性.
- 在动物模型中对伤口愈合加速的体内评估.
主要成果:
- 制造的水凝表现出高效的光热转换 (68.67%) 和内在的抗菌特性.
- 达到高抗菌比率:99.57%对S. aureus和99.16%对大肠杆菌.
- 呈现出低血解率 (<5%) 和优异的细胞活力 (>85%).
- 在体内研究证实了伤口愈合的显著加速.
结论:
- 提出的策略成功地创建了一个具有PTT功能的高性能MACD.
- 开发的基于纤维素的水凝包装显示了高级伤口管理的巨大潜力.
- 这项工作为设计和制备多功能伤口带提供了一种新的方法.
相关概念视频
01:24Inflammatory Response II: Inflammatory Exudate and Tissue Repair
The immune system's inflammatory response destroys the invading pathogen, permitting the tissue to heal. The changes during the cellular and vascular stages allow exudate formation at the site of inflammation. The inflammatory exudate released from the wound has high protein content and a specific gravity above 1.020.
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the exudate's...
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the exudate's...
01:28Phases of Wound Repair
Following injury, the integrity of the injured tissues must be reestablished. For example, in skin tissue, wound repair involves coordination among resident skin cells, blood mononuclear cells, extracellular matrix, growth factors, and cytokines to complete the healing cascade.
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
01:18Surface Membrane Barriers
The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...