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相关概念视频

Surface Membrane Barriers01:18

Surface Membrane Barriers

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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...
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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...
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Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
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相关实验视频

Updated: Jul 4, 2025

Author Spotlight: An Antimicrobial Fabric Using Nano-Herbal Encapsulation of Essential Oils
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具有内在杀菌活性的高性能阿拉米德.

Sandra de la Parra1, Álvaro Miguel2,3, Natalia Fernández-Pampín1

  • 1International Research Center in Critical Raw Materials for Advanced Industrial Technologies (ICCRAM), R&D Center, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain.

ACS applied materials & interfaces
|February 7, 2024
PubMed
概括

研究人员开发了一种简单的方法,使用素制造具有内置抗菌性能的阿拉米德涂层织品. 这些增强材料保持了高性能,提高了机械强度,并为苛刻的应用提供了强大的细菌抵抗力.

关键词:
提供先进的功能.阿拉米人 (Aramids) 是一个阿拉伯人.杀菌剂是一种杀菌剂.高性能聚合物的高性能聚合物.织品 织品 织品 织品

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科学领域:

  • 材料科学 材料科学 材料科学
  • 织工程 织工程 织工程
  • 抗微生物技术 抗微生物技术

背景情况:

  • 高性能亚拉胺纤维在防护装备和工业应用中至关重要.
  • 织品上的细菌繁殖是一个重大问题,特别是当经常洗是不可行的时.
  • 现有的阿拉米德材料缺乏固有的抗微生物特性,限制了它们在某些环境中的使用.

研究的目的:

  • 开发一种可扩展的方法,将杀菌活性传递给涂有阿拉米德的织品和薄膜.
  • 评估香草素功能化对阿拉米德的机械和热性能的影响.
  • 评估新型杀菌阿拉米德材料的抗菌疗效,可重复使用性和生物相容性.

主要方法:

  • 用阿拉米德涂层的织品和薄膜是通过将母阿拉米德与香进行反应来制备的.
  • 使用拉力试验评估机械性能,以确定扬模量.
  • 评估了热性能,并使用A参数对抗黄金葡萄球菌和Klebsiella pneumoniae量化了抗菌活性. 使用重建的人类表皮进行了皮肤刺激测试.

主要成果:

  • 瓦尼林功能化保留了高性能特征和增强的机械性能,与商业m-aramid相比,Young的模量增加了多达50%.
  • 杀菌性阿拉米德材料表现出显著的抗菌活性,A参数为S. aureus的4.31和K. pneumoniae的3.44.
  • 涂层织品在至少5个洗周期中保持了性能,并且被发现不会刺激皮肤.

结论:

  • 已经建立了一种简单且可扩展的方法来制造本质上杀菌性阿拉米德材料.
  • 这些功能化的阿拉米德提供了高性能,提高机械强度和强大的抗菌性能的结合.
  • 这种无金属,无刺激的杀菌亚米德适用于需要耐用性和抗菌功能的应用,例如急救织品和过器.