Date: 11/10/2019 04:21:53
From: dv
ID: 1447426
Subject: Vinyl cyanide on Titan

This news is 2 years old but I didn’t notice it until now

https://news.cornell.edu/stories/2015/02/life-not-we-know-it-possible-saturns-moon-titan

https://www.space.com/37653-saturn-moon-titan-cell-membrane-molecules.html
Saturn Moon Titan Has Molecules That Could Help Make Cell Membranes
Saturn’s huge moon Titan harbors yet another possible key ingredient for life, a new study reports.

Titan’s thick atmosphere contains large quantities of vinyl cyanide molecules, which could conceivably form membranes around cells in the liquid-hydrocarbon seas that dot the frigid moon’s surface, according to the study.

Many astrobiologists regard these seas of methane as possibly habitable environments, especially considering that a variety of complex, carbon-containing organic compounds are known to exist on Titan. However, any life the moon’s seas may support would have to be very different from Earth’s organisms, which depend heavily on liquid water.

Cell membranes are a case in point. Here on Earth, membranes consist of fatty molecules called lipids. But lipids cannot survive in the otherworldly Titan environment, which features a hydrocarbon-based weather system and average surface temperatures of around minus 290 degrees Fahrenheit (minus 180 degrees Celsius), study team members said.

https://advances.sciencemag.org/content/3/7/e1700022

Recent simulations have indicated that vinyl cyanide is the best candidate molecule for the formation of cell membranes/vesicle structures in Titan’s hydrocarbon-rich lakes and seas. Although the existence of vinyl cyanide (C2H3CN) on Titan was previously inferred using Cassini mass spectrometry, a definitive detection has been lacking until now. We report the first spectroscopic detection of vinyl cyanide in Titan’s atmosphere, obtained using archival data from the Atacama Large Millimeter/submillimeter Array (ALMA), collected from February to May 2014.

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Date: 11/10/2019 04:51:41
From: mollwollfumble
ID: 1447428
Subject: re: Vinyl cyanide on Titan

dv said:


This news is 2 years old but I didn’t notice it until now

https://news.cornell.edu/stories/2015/02/life-not-we-know-it-possible-saturns-moon-titan

https://www.space.com/37653-saturn-moon-titan-cell-membrane-molecules.html
Saturn Moon Titan Has Molecules That Could Help Make Cell Membranes
Saturn’s huge moon Titan harbors yet another possible key ingredient for life, a new study reports.

Titan’s thick atmosphere contains large quantities of vinyl cyanide molecules, which could conceivably form membranes around cells in the liquid-hydrocarbon seas that dot the frigid moon’s surface, according to the study.

Many astrobiologists regard these seas of methane as possibly habitable environments, especially considering that a variety of complex, carbon-containing organic compounds are known to exist on Titan. However, any life the moon’s seas may support would have to be very different from Earth’s organisms, which depend heavily on liquid water.

Cell membranes are a case in point. Here on Earth, membranes consist of fatty molecules called lipids. But lipids cannot survive in the otherworldly Titan environment, which features a hydrocarbon-based weather system and average surface temperatures of around minus 290 degrees Fahrenheit (minus 180 degrees Celsius), study team members said.

https://advances.sciencemag.org/content/3/7/e1700022

Recent simulations have indicated that vinyl cyanide is the best candidate molecule for the formation of cell membranes/vesicle structures in Titan’s hydrocarbon-rich lakes and seas. Although the existence of vinyl cyanide (C2H3CN) on Titan was previously inferred using Cassini mass spectrometry, a definitive detection has been lacking until now. We report the first spectroscopic detection of vinyl cyanide in Titan’s atmosphere, obtained using archival data from the Atacama Large Millimeter/submillimeter Array (ALMA), collected from February to May 2014.

> vinyl cyanide

? That’s not a standard chemical name.

Oh, Acrylonitrile, nice molecule for building nucleic acids from.

from https://en.wikipedia.org/wiki/Acrylonitrile

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