活性等离子灭菌器用于行星保护和污染控制,用于太空任务
Subrata Roy1,2, Justin Kosky3, Tamara Revazishvili4
1SurfPlasma, Inc., Gainesville, FL, 32601, USA. subrata@surfplasma.com.
Scientific reports
|December 29, 2024
概括
一种新的活性等离子体灭菌器 (APS) 有效地去污染了太空任务材料上的微生物. 这个紧的系统为行星保护提供了一个可行的解决方案,确保任务安全并防止生物污染.
科学领域:
- 太空科学 太空科学
- 微生物学 微生物学
- 材料科学 材料科学 材料科学
背景情况:
- 行星保护协议要求在太空任务中使用有效的灭菌方法.
- 现有的灭菌方法可能在温度,材料或化学使用方面存在局限性.
研究的目的:
- 介绍和评估一种新的,紧的等离子体灭菌系统,即活性等离子体灭菌器 (APS).
- 评估APS系统的净化效率和材料适用于太空应用的兼容性.
主要方法:
- 通过代设计和测试开发了活性等离子体灭菌器 (APS).
- 在各种材料上使用Deinococcus radiodurans,Geobacillus stearothermophilus和Aspergillus fumigatus进行了除污试验.
- 使用扫描电子显微镜 (SEM) 对不钢316,烯PTFE和FR-4PCB进行了材料兼容性测试.
主要成果:
- 在45分钟内实现了4到5个日志减少,直到完全杀死,测试的微生物.
- 暴露后在不钢316,烯PTFE和FR-4 PCB上没有明显的材料降解.
- 验证了APS系统对相关太空任务材料的有效性.
结论:
- 活性等离子体灭菌器 (APS) 是一种有效的灭菌技术,用于保护地球.
- APS提供优势,包括低温操作,紧的尺寸和材料兼容性.
- 该系统满足太空任务净化关键要求,确保生物安全.
相关概念视频
01:29Methods of Sterilization I: Physical Methods
19.2K
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...
19.2K
01:30Cleaning, Sterilization, and Disinfection
6.4K
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...
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...
6.4K
01:25Transmission-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
01:30Methods of Sterilization II: Chemical Methods
6.0K
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,...
6.0K
01:19Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
399
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...
399