单原子银-烯混合液体水凝用于电刺激伤口愈合:一个多功能抗菌平台
Davlatov Salim Sulaymonovich1, Normurot Fayzullaev2, Rakhnamokhon Nazirova3
1Department of Surgery, Bukhara State Medical Institute named after Abu Ali ibn Sino, Bukhara, Uzbekistan.
Biomaterials science
|June 20, 2025
概括
这项研究引入了一种新的水凝,将单原子银和烯纳米片结合起来,用于先进的伤口愈合. 该材料具有强大的抗菌作用,电反应能力和增强的组织再生,降低毒性.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 再生医学是一种再生医学.
背景情况:
- 慢性伤口需要具有抗菌和再生功能的先进生物材料.
- 现有的基于银的治疗方法面临细胞毒性和低效率的挑战.
- 电刺激显示了增强伤口愈合过程的前景.
研究的目的:
- 开发一种多功能水凝,结合单原子银 (Ag-SA) 和烯纳米薄膜 (BNSs),用于慢性伤口愈合.
- 评估新型水凝的抗菌,电气和再生能力.
- 为了评估Ag-SA和BNS在PVA/基托矩阵 (PCAB) 中的协同效应.
主要方法:
- 制造一个包含Ag-SA和BNS (PCAB) 的PVA/奇托桑水凝矩阵.
- 对大肠杆菌和黄金杆菌的抗菌活性评估.
- 在低压刺激下评估电导率和响应能力.
- 在体外测试纤维细胞增殖和细胞毒性.
- 在体内研究使用小鼠全厚伤口模型.
主要成果:
- 该PCAB水凝显示出显著的抗菌疗效 (>95%的根除).
- 加入Ag-SA降低了细胞毒性和血液溶解,降低到<5%.
- 烯纳米片提供电导率 (0.45 S cm-1) 和增强的矩阵特性.
- 低压刺激 (1V) 触发了水凝的反应.
- 在体内研究显示,到第14天,伤口关闭加速 (97.3%) 和上皮再生 (124.5μm).
- 所有绩效指标的显著改善得到了统计验证 (p < 0.001).
结论:
- 在PCAB水凝中Ag-SA和BNS的协同组合提供了一个低毒性,电活性平台,用于增强伤口护理.
- 这种多功能水凝显示出下一代慢性伤口愈合应用的巨大潜力.
- 该研究强调了原子分散银和2D材料在生物材料设计中的好处.
相关概念视频
Hand hygiene
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...
Combined Effects of Drugs: Synergism
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
Surface 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...
Waterproofing and Anti-Bacterial Admixtures in Concrete
Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
Waterproofing admixtures render concrete hydrophobic,...
Waterproofing admixtures render concrete hydrophobic,...
Chemical Agents for Microbial Control
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...


