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Survey and Evaluation of Spacecraft-Associated Aluminum-Degrading Microbes and Their Rapid Identification Methods.
Astrobiology ( IF 4.2 ) Pub Date : 2020-08-06 , DOI: 10.1089/ast.2019.2078
Nino Rcheulishvili 1 , Ying Zhang 1 , Dimitri Papukashvili 1 , Yu-Lin Deng 1
Affiliation  

Aluminum corrosion has become a major obstacle in spacecraft construction given that aluminum is used extensively throughout the construction process. Despite its many attributes in strength and durability, aluminum is susceptible to corrosion, in particular, corrosion due to microbial contamination. Scientists have encountered a number of problems with microbial aluminum corrosion within spacecraft components. Here, we summarize recent findings with regard to the phenomenon of microbiologically influenced corrosion (MIC) on space stations in the context of microbial strains isolated from the Mir space station (Mir) and the International Space Station (ISS). Given that strains found on spacecraft are of terrestrial origin, an understanding of the contribution of Al-corrosive microbes to corrosion and related risks to space travel and astronaut health is essential for implementation of prevention strategies. Accordingly, an efficient rapid identification method of microbes with the capability to degrade aluminum is proposed. In particular, onboard implementation of a matrix-assisted laser desorption/ionization–time of flight mass spectrometer (MALDI-TOF MS) is addressed. The use of a MALDI-TOF MS on board spacecraft will be crucial to future successes in space travel given that traditional methods of identifying corrosive species are far more time-consuming. Identification of microbes by way of a MALDI-TOF MS may also aid in the study of microbial corrosion and be a valuable asset for MIC prevention.

中文翻译:

与航天器有关的铝降解微生物的调查和评估及其快速识别方法。

鉴于铝在整个建造过程中得到广泛使用,铝腐蚀已成为航天器建造中的主要障碍。尽管铝在强度和耐用性方面具有许多属性,但铝仍然易于腐蚀,特别是由于微生物污染而引起的腐蚀。科学家在航天器组件内遇到了许多微生物铝腐蚀问题。在这里,我们总结了从Mir空间站(Mir)和国际空间站(ISS)分离出的微生物菌株的背景下,有关空间站上微生物受到腐蚀(MIC)现象的最新发现。考虑到航天器上发现的应变是地球起源的,了解铝腐蚀性微生物对腐蚀的贡献以及对太空旅行和宇航员健康的相关风险,对于实施预防策略至关重要。因此,提出了一种具有降解铝能力的有效的微生物快速鉴定方法。尤其要解决的是在飞机上实施基质辅助激光解吸/电离飞行时间质谱仪(MALDI-TOF MS)。鉴于传统的识别腐蚀性物种的方法要花费大量时间,因此在航天器上使用MALDI-TOF MS对于未来太空旅行的成功至关重要。通过MALDI-TOF MS鉴定微生物也可能有助于研究微生物腐蚀,并且是预防MIC的宝贵资产。因此,提出了一种具有降解铝能力的有效的微生物快速鉴定方法。尤其要解决的是在飞机上实施基质辅助激光解吸/电离飞行时间质谱仪(MALDI-TOF MS)。鉴于传统的识别腐蚀性物种的方法要花费大量时间,因此在航天器上使用MALDI-TOF MS对于未来太空旅行的成功至关重要。通过MALDI-TOF MS鉴定微生物也可能有助于研究微生物腐蚀,并且是预防MIC的宝贵资产。因此,提出了一种具有降解铝能力的有效的微生物快速鉴定方法。尤其要解决的是在飞机上实施基质辅助激光解吸/电离飞行时间质谱仪(MALDI-TOF MS)。鉴于传统的识别腐蚀性物种的方法要花费大量时间,因此在航天器上使用MALDI-TOF MS对于未来太空旅行的成功至关重要。通过MALDI-TOF MS鉴定微生物也可能有助于研究微生物腐蚀,并且是预防MIC的宝贵资产。解决了机载辅助激光解吸/电离飞行时间质谱仪(MALDI-TOF MS)的实现。鉴于传统的识别腐蚀性物质的方法要花费大量时间,因此在航天器上使用MALDI-TOF MS对于未来太空旅行的成功至关重要。通过MALDI-TOF MS鉴定微生物也可能有助于研究微生物腐蚀,并且是预防MIC的宝贵资产。解决了机载辅助激光解吸/电离飞行时间质谱仪(MALDI-TOF MS)的实现。鉴于传统的识别腐蚀性物种的方法要花费大量时间,因此在航天器上使用MALDI-TOF MS对于未来太空旅行的成功至关重要。通过MALDI-TOF MS鉴定微生物也可能有助于研究微生物腐蚀,并且是预防MIC的宝贵资产。
更新日期:2020-08-12
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