← 8 October 2026's Current Affairs · Science & Tech GA Prelims ★★★★☆ Mains ★★☆☆☆
Kagan and Soai win the 2026 Nobel Prize in Chemistry
Why in News?
Same molecule, opposite effect in the body: the Nobel chemistry behind asymmetric synthesis and chirality, for GS3 Science
Nobel in Chemistry honours the chemistry of mirror-image molecules.
Why it matters: factual, Prelims-type
What you need to know
2 min read
Henri Kagan and Kenso Soai received the 2026 Nobel Prize in Chemistry for discoveries concerning non-linear effects and autocatalysis in asymmetric organic synthesis.
Asymmetric synthesis is the making of one mirror-image form of a molecule, which matters because mirror-image forms of a drug can act very differently in the body.
Sources: Topper IAS editorial (PIB / The Hindu / Indian Express)
Key facts
Remember these
- 2026 Nobel Prize in Chemistry: Henri Kagan and Kenso Soai
- Citation: non-linear effects and autocatalysis in asymmetric organic synthesis
- Asymmetric synthesis makes one mirror-image form (enantiomer) of a molecule
- Chirality: mirror-image forms of a drug can act very differently in the body
- Nobel Prizes are announced in Stockholm
Prelims · Mains
How the exam will ask it
Prelims
- Asymmetric synthesis is the preferential making of one mirror-image form (enantiomer) of a chiral molecule.
- Mirror-image forms of a chiral drug can differ in their biological effects.
- Autocatalysis is a reaction in which a product acts as a catalyst for its own formation.
Mains
GS3 Science & Technology: Nobel-recognised chemistry links basic research to everyday life. Chirality matters for drug safety and efficacy, so enantiomerically pure drugs and the regulation of pharmaceutical quality follow from it. The way forward is to strengthen India's fundamental research funding and its pharma synthesis capability.
Quick recall
Answer before you reveal
The 2026 Nobel Prize in Chemistry, awarded to Henri Kagan and Kenso Soai, recognised discoveries concerning:
- Click chemistry and bioorthogonal reactions
- Genome editing using CRISPR-Cas9
- Metal-organic frameworks
- Non-linear effects and autocatalysis in asymmetric organic synthesis
Show answer
Answer: D — Correct: Non-linear effects and autocatalysis in asymmetric organic synthesis — The citation covers non-linear effects and autocatalysis in asymmetric synthesis, the chemistry of making one mirror-image form of a molecule. • Click chemistry and bioorthogonal reactions — wrong: Click chemistry and bioorthogonal reactions were honoured with the 2022 Nobel Prize in Chemistry. • Genome editing using CRISPR-Cas9 — wrong: CRISPR-Cas9 genome editing was honoured with the 2020 Nobel Prize in Chemistry. • Metal-organic frameworks — wrong: Metal-organic frameworks were honoured in an earlier year's Chemistry prize, not this one.
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