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相关概念视频

Methods of Sterilization I: Physical Methods01:29

Methods of Sterilization I: Physical Methods

19.8K
As used in a healthcare facility, sterilization destroys all microorganisms through physical or chemical methods. The physical method includes steam, dry heat, boiling water, and radiation.
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...
19.8K
Cleaning, Sterilization, and Disinfection01:30

Cleaning, Sterilization, and Disinfection

6.7K
Cleaning, disinfection, and sterilization are the methods that help to break the infection chain and prevent disease.
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
6.7K
Methods of Sterilization II: Chemical Methods01:30

Methods of Sterilization II: Chemical Methods

6.3K
In healthcare, the chemical method of sterilization uses chemical sterilants to treat surgical instruments and medical supplies to help prevent the transmission of infectious pathogens to patients. Due to heat sensitivity, most medical supplies and equipment should not be exposed to high temperatures. These parts include rubber, plastic, glass, and other similar elements.
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
6.3K
Hand hygiene01:23

Hand hygiene

3.2K
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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相关实验视频

Updated: Jun 28, 2025

Treating Surfaces with a Cold Atmospheric Pressure Plasma using the COST-Jet
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冷等离子体:清洁的技术来摧毁致病微生物.

R Kar1, N Chand1, A Bute1,2

  • 1Beam Technology and Development Group, Bhabha Atomic Research Centre, Mumbai, 400085 India.

Transactions of the Indian National Academy of Engineering : an international journal of engineering and technology
|April 16, 2024
PubMed
概括

大气压冷等离子体有效杀死致病微生物. 修改后的设备显示出对消毒区域的承诺,包括在没有强化学品的情况下对COVID-19病房的潜在应用.

关键词:
冰冷的等离子体是什么?杀菌效率的细菌杀伤效率是什么光学发射光谱学 光学发射光谱学

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The Portable Chemical Sterilizer PCS, D-FENS, and D-FEND ALL: Novel Chlorine Dioxide Decontamination Technologies for the Military

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The Portable Chemical Sterilizer PCS, D-FENS, and D-FEND ALL: Novel Chlorine Dioxide Decontamination Technologies for the Military
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科学领域:

  • 血物理学的等离子体物理学
  • 微生物学 微生物学
  • 公共卫生 公共卫生

背景情况:

  • 致病微生物对健康构成重大风险.
  • 冷等离子体是微生物无活化的新兴技术.
  • 随着COVID-19的爆发,人们越来越需要有效的消毒方法.

研究的目的:

  • 为了评估改性大气压冷等离子体装置对病原性微生物的疗效.
  • 为了比较两个不同的冷等离子装置设计的性能.
  • 调查冷等离子体在消毒大面积,如医院病房的潜在应用.

主要方法:

  • 修改了两个冷等离子装置:一种类似笔的微波装置和一种更大的射频 (RF) 等离子装置.
  • 测试微生物无活化对 * Aeromonas * 细菌及其菌体的有效性.
  • 使用光学发射光谱 (OES) 分析等离子体特征,特别是基 (OH) 基的存在.
  • 评估距离和治疗时间对杀死微生物效率的影响.

主要成果:

  • 这两种修改后的冷血装置都在杀死 * Aeromonas * 细菌及其菌器方面表现出显著的效率.
  • 基于微波的装置在2分钟内在6厘米的距离内使微生物失活.
  • 较大的射频等离子装置在更大面积 (大约1200平方米) 上实现了类似的微生物无活化. 40厘米) 在4分钟内.
  • 光学发射光谱证实,这两种设备都产生OH基,与微生物破坏相关.

结论:

  • 大气压冷等离子体是一种可行的技术,可以使致病微生物失活.
  • 修改后的冷等离子器件,特别是更大的基于射频的系统,提供了有效和高效的微生物消毒能力.
  • 这些发现表明冷等离子体在去污染大空间的潜在应用,包括受SARS-CoV-2等病原体影响的医院环境,没有化学残留.