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Chirality & asymmetric autocatalysis — one handedness, amplified

chemistry

Many molecules are chiral — they come in two mirror-image forms, R and S. Enantiomeric excess, ee = |R−S|/(R+S)×100%, measures how far a sample leans to one hand (0% = racemic 50/50; 100% = a single enantiomer). The 2026 Nobel Prize in Chemistry (Henri B. Kagan and Kenso Soai) recognized how a small handedness is AMPLIFIED. Kagan's non-linear effects (1986): a partly-impure chiral catalyst yields product of higher ee than the catalyst itself. Soai's asymmetric autocatalysis: the product catalyzes its own formation in its own handedness, so a tiny initial excess runs up toward homochirality — a molecule that makes more of itself, one-handed. It is a found answer to how life's single handedness (L-amino acids, D-sugars) could emerge from a near-symmetric start: one source, a small bias, one end. Checkable here: chemistry.enantiomeric_excess and chemistry.chiral_amplification. Cited, not generated — the Nobel announcement, nobelprize.org/prizes/chemistry/2026.

source
Nobel Prize in Chemistry 2026 — Kagan & Soai · stick_chirality_and_asymmetric_autocatalysis ↗
card id
card_chirality_autocatalysis
address
WIT.codex.FCT/chirality-asymmetric-autocatalysis-one-handednes/REF.WITNESSED@nobel-prize-in-chemistry

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