Exploring the 2025 Nobel Prize in Chemistry: Kitagawa, Robson and Yaghi and Metal-Organic Frameworks

Exploring the 2025 Nobel Prize in Chemistry (Physical Science Discussion)

1. Identify the Nobel Laureates: names, institutions and the countries where these institutions are located.
2. Nationality of the Winner: determine the nationality of at least one laureate and discuss its significance in the context of their research and the global scientific community.
3. Discuss the Importance of the Research: why was the work groundbreaking, and how has it advanced chemistry or related fields?
4. Potential Uses of the Research: practical applications for industries, technology or everyday life; applications you find exciting.
5. Engage thoughtfully with at least two classmates’ posts.

Original example for study purposes (about 600 words).

1. The laureates

On October 8, 2025, the Royal Swedish Academy of Sciences awarded the Nobel Prize in Chemistry jointly to three chemists “for the development of metal–organic frameworks” (Nordic Life Science, 2025):

• Susumu Kitagawa (born 1951, Kyoto), Kyoto University, Kyoto, Japan.
• Richard Robson (born 1937, Glusburn, United Kingdom), University of Melbourne, Melbourne, Australia.
• Omar M. Yaghi (born 1965, Amman, Jordan), University of California, Berkeley, United States.

2. Nationality and its significance

Omar Yaghi’s story is especially meaningful. He was born in Amman, Jordan, to Palestinian refugee parents who had fled Gaza in 1948 and who could barely read or write. His family shared a single small room, and he first saw drawings of molecules in a public library at age 10. He moved to the United States alone at 15, studied at a community college and the University at Albany and built his career in American universities (Irish News, 2025). He is widely described as a U.S.-based Jordanian-born chemist of Palestinian descent, and Saudi media described him as a Saudi-American laureate because he also holds Saudi citizenship (Al Arabiya, 2025). Several Arab countries claimed him as their own.

His nationality matters less as a flag than as a reminder that scientific talent exists everywhere and flourishes when people have access to education and open research systems. The prize itself was international: a British-born chemist working in Australia, a Japanese chemist and a refugee’s son working in the United States built on each other’s papers across three continents. This shows how science advances through global collaboration and why policies that support international students and researchers benefit everyone.

3. Why the research was groundbreaking

Metal–organic frameworks are crystals built from metal ions or clusters (the “joints”) connected by organic molecules (the “struts”). Like a molecular Tinkertoy set, they form rigid three-dimensional networks full of tiny, regular pores. The Nobel Committee described this as a new form of molecular architecture with large spaces through which gases and other chemicals can flow (South China Morning Post, 2025).

• Robson laid the foundation in 1989 by linking copper ions with a four-armed organic molecule to create a spacious, diamond-like crystal, showing that frameworks could be designed rather than discovered by chance. His early structures were fragile.
• Kitagawa showed in the late 1990s that gases could flow in and out of these frameworks and predicted that they could be flexible, changing shape as molecules entered.
• Yaghi created very stable frameworks, including the well-known MOF-5, and developed “reticular chemistry,” a rational way to design frameworks with chosen pore sizes and chemical properties. Some MOFs have such enormous internal surface area that a few grams can contain the area of a football field.

Their work turned porous materials into a field of design. Chemists have since created tens of thousands of MOFs tailored for specific jobs, opening new research in materials science, environmental chemistry and engineering.

4. Potential uses

• Water harvesting from desert air: MOFs absorb water vapor at night and release it when warmed by sunlight, producing drinking water in dry regions.
• Carbon dioxide capture from power plant and factory emissions to fight climate change.
• Storing toxic gases safely, for example in the electronics industry.
• Catalysis to speed up industrial chemical reactions more efficiently.
• Medicine and the environment: drug delivery, imaging, sensors and breaking down pharmaceutical residues in water (Nordic Life Science, 2025).

The application I find most exciting is water harvesting. Billions of people face water scarcity, and a device that pulls clean water from dry air using only sunlight could change daily life in arid regions. I am also curious whether carbon capture with MOFs can become cheap enough to use at scale.

References

Al Arabiya. (2025, October 8). Saudi-American Nobel laureate Omar Yaghi shares his story in first interview since win. https://english.alarabiya.net/News/saudi-arabia/2025/10/08/saudiamerican-nobel-laureate-omar-yaghi-shares-his-story-in-first-interview-since-win

Irish News. (2025). A long journey for Nobel chemistry winner born to Palestinian refugees. https://www.irishnews.com/news/world/a-long-journey-for-nobel-chemistry-winner-born-to-palestinian-refugees-UF2A6TTO4NCJBDO4TZECVWDKGA/

Nordic Life Science. (2025). The Nobel Prize in Chemistry honors the development of metal-organic frameworks. https://nordiclifescience.org/the-nobel-prize-in-chemistry-honors-the-development-of-metal-organic-frameworks/

South China Morning Post. (2025, October 8). Nobel chemistry prize awarded to trio for breakthrough in metal-organic frameworks. https://www.scmp.com/news/world/europe/article/3328245/nobel-chemistry-prize-awarded-trio-breakthrough-metal-organic-frameworks

Reply 1: I liked how you compared MOFs to a sponge with pores designed at the molecular level. You mentioned carbon capture; do you think MOFs could be combined with direct air capture, or would they work better at smokestacks where CO₂ is more concentrated? I wonder whether cost or durability is the bigger barrier.

Reply 2: Your point about Robson’s 1989 structure being unstable at first is a good reminder that breakthroughs often start imperfect. It took Kitagawa’s and Yaghi’s later work to make MOFs practical. Do you think the Nobel committee was right to include all three, given that their contributions came at different stages?