相关实验视频
Updated: Jun 11, 2025

06:10
Detection of Viruses from Bioaerosols Using Anion Exchange Resin
Published on: August 22, 2018
8.2K
生物气溶通过冷等离子电离器与静电沉器相结合来无活化
Samuel Wei Yang Lim1, Sian Yang Ow1, Laura Sutarlie1
1Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore.
Microorganisms
|September 28, 2024
概括
冷等离子技术与静电沉器相结合,有效地使空气中的病毒和细菌失活. 这种生物气溶无活化提供了一种有希望的方法来防止传染病的传播.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 工程 工程师 工程师 工程师
背景情况:
- 空气传播的传染病通过生物气溶传播,需要除了空气净化之外的新控制策略.
- 冷等离子技术为生物气溶无活化提供了一个潜在的解决方案.
研究的目的:
- 评估冷血电离器 (CPI) 和CPI-ESP设备在禁用空气中的微生物方面的有效性.
- 研究细菌细胞膜受寒冷等离子体损伤的机制.
主要方法:
- 测试CPI和CPI-ESP设备对表面传播的猪呼吸道冠状病毒和大肠杆菌的检测.
- 在各种室内环境中评估CPI-ESP对气溶液中的大肠杆菌和自然存在的空气中微生物的疗效.
- 使用光显微镜检查细菌细胞膜损伤.
主要成果:
- CPI-ESP有效地使表面传播的病毒和细菌失活.
- CPI-ESP在减少气溶液中的大肠杆菌和空气中的微生物方面表现出有效性.
- 冷血治疗导致不同程度的大肠杆菌细胞膜损伤.
结论:
- 冷等离子技术,特别是CPI-ESP,显示出控制空气传播传染病的巨大潜力.
- 该技术在各种环境中对表面和空气中的微生物有效.
- 了解消毒机制有助于优化用于公共卫生的冷等离子体应用.
相关概念视频
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
537
Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
537
Transmission-based Precautions II: Airborne and Protective Environment
1.2K
Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions.
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
1.2K
Atomic Absorption Spectroscopy: Atomization Methods
381
Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...
381
Methods of Sterilization I: Physical Methods
19.6K
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...
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...
19.6K
Atomic Emission Spectroscopy: Overview
1.6K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
1.6K
Methods of Sterilization II: Chemical Methods
6.2K
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,...
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
6.2K

