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J. Petkowski

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Open access Sep 2026

Peptides adopt stable omega-loop structures in concentrated sulfuric acid

Using NMR spectroscopy, it is shown that three peptides adopt stable, well-defined folded structures in concentrated sulfuric acid, an extreme solvent environment that has been long assumed to be incompatible with biomolecules.

Jia-Yi Zhang, A. Dregni, J. Petkowski et al. · 0 citations
Review Jul 2026

IMPRESS: A Planetary Penetrator Network for Astrobiology, Prospecting, and Exploration of Mars

The International Mars Prospecting Ride-Share System (IMPRESS) is presented here as a scalable, democratized, and low-cost mission architecture for distributed measurements on the martian surface and in the shallow subsurface. IMPRESS is intended to prospect on Mars in advance of sample return and human exploration. It...

Jan Špaček, Holden Alpern, Thomas Dineen et al. · 0 citations

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