Theoretical origin of life: ocean vents a source of life? (Introduction)

by David Turell , Thursday, October 03, 2024, 23:25 (51 days ago) @ David Turell

More fun and games:

https://www.sciencedaily.com/releases/2024/09/240925123545.htm

"Researchers have discovered inorganic nanostructures surrounding deep-ocean hydrothermal vents that are strikingly similar to molecules that make life as we know it possible. These nanostructures are self-organized and act as selective ion channels, which create energy that can be harnessed in the form of electricity. The findings impact not only our understanding of how life began, but can also be applied to industrial blue-energy harvesting. (my bold--this study does none of the sort)

"Researchers led by Ryuhei Nakamura at the RIKEN Center for Sustainable Resource Science (CSRS) in Japan and The Earth-Life Science Institute (ELSI) of Tokyo Institute of Technology have discovered inorganic nanostructures surrounding deep-ocean hydrothermal vents that are strikingly similar to molecules that make life as we know it possible. These nanostructures are self-organized and act as selective ion channels, which create energy that can be harnessed in the form of electricity. Published Sep. 25 in Nature Communications, the findings impact not only our understanding of how life began, but can also be applied to industrial blue-energy harvesting. (my bold)

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"The team used an electrode to record the current-voltage of the samples. When the samples were exposed to high concentrations of potassium chloride, the conductance was proportional to the salt concentration at the surface of the nanopores. But at lower concentrations, the conductance was constant, not proportional, and was determined by the local electrical charge of the precipitate's surface. This charge-governed ion transport is very similar to voltage-gated ion channels observed in living cells like neurons.

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"'The spontaneous formation of ion channels discovered in deep-sea hydrothermal vents has direct implications for the origin of life on Earth and beyond," says Nakamura. "In particular, our study shows how osmotic energy conversion, a vital function in modern life, can occur abiotically in a geological environment."

"Industrial power plants use salinity gradients between seawater and river water to generate energy, a process called blue-energy harvesting. According to Nakamura, understanding how nanopore structure is spontaneously generated in the hydrothermal vents could help engineers devise better synthetic methods for generating electrical energy from osmotic conversion."

Comment: pitiful. Just because it looks like something doesn't mean it applies in the same way! OOL research is in such a dead end, contorting any study to look like OOL may help is finding grant funds. This study actually stands on its own.