Stockholm, Oct 7: The 2026 Nobel Prize in Chemistry has been awarded to Henri B. Kagan and Kenso Soai for their pioneering work on non-linear effects and autocatalysis in asymmetric organic synthesis, a breakthrough that has helped scientists better understand and control the formation of molecules with a single handedness.
The Royal Swedish Academy of Sciences announced the award on Wednesday, recognising the duo for discoveries that have opened new possibilities in controlling chemical reactions and producing molecules with desired structural properties.
Their work addresses a fundamental challenge in chemistry: how to encourage chemical reactions to produce predominantly one of two mirror-image forms of a molecule, a property known as homochirality.
Molecules can exist in two mirror-image forms, much like the left and right hands of a person. Although these forms may have the same chemical composition, they can behave differently in biological systems. Controlling this molecular “handedness” is therefore particularly important in areas such as pharmaceuticals and other applications of organic chemistry.
The researchers’ work on asymmetric synthesis, autocatalysis and non-linear effects has provided important insights into how small differences in chemical reactions can be amplified, allowing one molecular form to become dominant.
The Nobel recognition highlights the broader importance of understanding how chemical systems can generate and reinforce molecular asymmetry. Such knowledge has contributed to the development of more precise approaches to chemical synthesis.
The 2026 Chemistry Nobel also underscores how fundamental discoveries in organic chemistry can have wider implications for modern science, particularly in the design and production of complex molecules.
The award to Kagan and Soai marks another milestone in the long effort to understand the origins and control of molecular handedness, a subject that has remained one of chemistry’s intriguing challenges for more than a century.