A microgravity responsive synthetic genetic device in Escherichia coli

Mukhopadhyay, Sayak; Bagh, Sangram

doi:10.1016/j.bios.2020.112462

Cited by 7 publications

(5 citation statements)

References 34 publications

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“…Long-duration human spaceflights, like missions to Mars 1,2 , and those involving a continuous presence in low Earth orbit (LEO), require reconsideration of risk management, in particular of biohazardous risks to astronauts and equipment integrity [2][3][4][5][6][7][8][9] . Over long periods, unknown mutations, resistance, and virulence can develop and be favored in response to recurrent disinfectant application and adaptation to microgravity [10][11][12][13][14][15][16][17][18][19][20][21] . Besides, biocontamination of spacecraft and in particular their surfaces [22][23][24][25] by crew flora 3,26,27 is inevitable 5,28,29 .…”

Section: Introductionmentioning

confidence: 99%

Passive limitation of surface contamination by perFluoroDecylTrichloroSilane coatings in the ISS during the MATISS experiments

et al. 2022

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Future long-duration human spaceflight will require developments to limit biocontamination of surface habitats. The MATISS (Microbial Aerosol Tethering on Innovative Surfaces in the international Space Station) experiments allowed for exposing surface treatments in the ISS (International Space Station) using a sample-holder developed to this end. Three campaigns of FDTS (perFluoroDecylTrichloroSilane) surface exposures were performed over monthly durations during distinct periods. Tile scanning optical microscopy (×3 and ×30 magnifications) showed a relatively clean environment with a few particles on the surface (0.8 to 7 particles per mm2). The varied densities and shapes in the coarse area fraction (50–1500 µm2) indicated different sources of contamination in the long term, while the bacteriomorph shapes of the fine area fraction (0.5–15 µm2) were consistent with microbial contamination. The surface contamination rates correlate to astronauts’ occupancy rates on board. Asymmetric particles density profiles formed throughout time along the air-flow. The higher density values were located near the flow entry for the coarse particles, while the opposite was the case for the fine particles, probably indicating the hydrophobic interaction of particles with the FDTS surface.

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Section: Introductionmentioning

confidence: 99%

Passive limitation of surface contamination by perFluoroDecylTrichloroSilane coatings in the ISS during the MATISS experiments

et al. 2022

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“…This review paper recommends the use of toasted Mucuna seed meal in Tilapia fish aquaculture to improve the nutritional value of the fish feeds in light of these studies. Dietary cooperation of Carrots (Daucus carota) used as colorant pigmentation in Swordtail (Xiphophorus helleri) considerably improved the orange coloration of the body, particularly when supplemented with dietary Spinach at 1.3g/100g of the fish diet (Mukhopadhyay, 2021). According to the findings of this author's study, natural carotenoid sources such as Carrots and Spinach can be added to the diet of Red Tilapia and O. mozambique to enhance their body coloration.…”

Section: Current Emerging Trend On the Use Of Additives In Fish Feed ...mentioning

confidence: 84%

A Review on the Current Status and Emerging Trends in the Utilization of Fish Feed Additives for Sustainable Production of Oreochromis Niloticus

Rahman,

Ashraful Alam,

Moniruzzaman

et al. 2023

Am. J. Aquac. Anim. Sci.

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Feed additives are regarded as an essential component of the fish diet during the production of fish feed. The addition of feed additives to fish food is essential for enhancing the growth and immunity of farmed fish. This study’s objective was to conduct a comprehensive review of the Current Status and Trends in the Adoption of these fish feed additives for Sustainable Tilapia production. In this study, an exploratory research design was used to review and comprehend numerous peer-reviewed papers published in national and international publications on issues related to fish feed additives currently used in Tilapia aquaculture production and the current and future prospects of essential fish feed additives. Feed additives are ingredients that are added in minor amounts to fish diets to increase nutrient content and prolong shelf life. Preservatives, binders, feeding stimulants, and food coloring are frequent feed additives. In order to optimize the production of farmed fish, it is necessary to encourage the use of additives as aquaculture expands. The purpose of feed additives in fish feed is to promote healthier and more rapid fish growth in aquaculture. As a result, fish diets must include the proper amounts of feed additives. The findings imply that fish feed without feed additives is analogous to “a vehicle without fuel” and should be regarded as poor fish feed when fed to fish in an aquaculture system. The end consequence will be a low growth rate for fish, decreased disease resistance, and consequently low productivity in an aquaculture production system.

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“…The presence of biocontamination in the cabin not only poses threats to the health of astronauts but also entails potential damage to critical equipment (Ichijo et al, 2016;Farkas and Farkas, 2021). Over time, microorganisms have the capacity to develop resistance, mutate, and increase their virulence, thus transforming benign microbes into pathogenic agents due to the immune system disruptions experienced in space (Jorgensen et al, 1997;Wilson et al, 2007;Wilson et al, 2008;Tirumalai et al, 2017;Zea et al, 2017;Huang et al, 2018;Mukhopadhyay and Bagh, 2020;Fajardo-Cavazos and Nicholson, 2021). Consequently, it is imperative to effectively mitigate these risks (Siegel et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Surface contamination rates at different spatial scales in the Columbus module (ISS) during the MATISS campaigns

Lemelle,

Mottin,

Le Tourneau

et al. 2023

Front. Astron. Space Sci.

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Future long-duration human spaceflights require developments to limit biocontamination of surface habitats. The three MATISS (Microbial Aerosol Tethering on Innovative Surfaces in the International Space Station) campaigns exposed surface treatments over several months in the ISS. To this end, eight sample holders designed were mounted with lamella-bearing FDTS ((1H, 1H, 2H, 2H)-perfluorodecyltrichlorosilane), SiOCH, and parylene hydrophobic coatings, at two different locations, for several months, during three distinct periods from 2016 to 2020. Tile scanning optical microscopy (×3 and ×30 magnifications) detected several thousand particles, indicating a relatively clean environment (a few particles per mm2). In previous studies, exposure rates were analyzed for all the coarse and fine particles detected on the largest total area of the integrated FDTS area exposed in the ISS (several cm2). Here, the contamination rates observed for a smaller constant area unit (the 0.66-cm2 window area of the holder) were statistically analyzed. Therefore, a statistical difference in rate distributions between RGSH (Return Grid Sensor House) and EDR (European Drawer Rack) and between FDTS and either SiOCH or parylene was shown for the coarse particles but not for the fine particles. The contamination rates were found to be low, confirming the efficiency of the long-term air purification system. The rates tend to vary with the astronaut occupancy rates. Surfaces of spacecraft for long-duration exploration left unmanned during dormancy periods can be considered safe from biocontamination.

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A microgravity responsive synthetic genetic device in Escherichia coli

Cited by 7 publications

References 34 publications

Passive limitation of surface contamination by perFluoroDecylTrichloroSilane coatings in the ISS during the MATISS experiments

Passive limitation of surface contamination by perFluoroDecylTrichloroSilane coatings in the ISS during the MATISS experiments

A Review on the Current Status and Emerging Trends in the Utilization of Fish Feed Additives for Sustainable Production of Oreochromis Niloticus

Surface contamination rates at different spatial scales in the Columbus module (ISS) during the MATISS campaigns

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