On October 7, the Royal Swedish Academy of Sciences awarded the 2026 Nobel Prize in Chemistry to Henri Kagan and Kenso Soai "for the discovery of non-linear effects and autocatalysis in asymmetric organic synthesis." Asymmetric synthesis is how chemists make one mirror-image form of a molecule instead of a mixture of both, which matters in drug manufacturing because the two forms can act differently in the body.

Prize announcements are a chance to see how a field is built. We counted the literature.

How large is the field around the prize?

Source: NCBI PubMed via E-utilities, queried October 12, 2026. Keyword counts at five-year intervals, not every year. Chemistry journals are only partly indexed in PubMed, so the absolute numbers understate the literature. The two terms are our proxies, not the Academy definitions.

View data

year	enantioselective	autocatalysis
1990	67	0
1995	127	0
2000	447	1
2005	1011	7
2010	1349	5
2015	1640	4
2020	1694	7
2025	1991	3

Enantioselective records rose from 67 in 1990 to 1,991 in 2025, a 30-fold increase. The autocatalysis term never exceeded 7 records in the years we sampled, and returned 3 in 2025. In 2025 that is 3 records against 1,991, about 0.15%.

What does the broader field look like?

A wider term, asymmetric catalysis, gives a middle picture: 5 records in 1990, 335 in 2005, 915 in 2025. It is 46% of the enantioselective count in 2025, so about half of the larger field is described as catalysis in the title or abstract, and the rest uses other methods or other wording.

Does a small footprint mean small impact?

Not by itself. Counts of papers are not counts of uses. Non-linear effects are a way to read how a catalyst behaves, and autocatalysis in asymmetric synthesis is a striking demonstration that a tiny excess of one mirror form can amplify itself. A technique can be widely used without being named in many abstracts, and a concept can matter without producing many papers. We did not check how often either idea appears in industrial processes, and nothing we pulled lets us say.

What this does and does not show

The numbers show how often the terms appear in PubMed, nothing more. PubMed under-indexes chemistry, search terms capture some papers and miss others, and the figures are sampled at five-year steps. The laureates and citation come from news coverage of the announcement; the Nobel site did not load for us, and our sources did not give affiliations or discovery dates, so we leave them out.

Sources

1. NCBI, PubMed, queried through the E-utilities API on October 12, 2026: yearly counts for enantioselective, asymmetric catalysis and asymmetric autocatalysis.
2. The Nobel Prize, Chemistry 2026 prize announcement, and Khaleej Times, Henri Kagan, Kenso Soai win 2026 Nobel chemistry prize: laureates and citation.
3. Our earlier analysis: Protein design revolution.