Mizzou researchers building ‘green’ protection for fragile enzymes

By Eric Stann

April 13, 2026
Contact: Eric Stann, [email protected]
Photos by Abbie Lankitus

Enzymes are nature's tiny powerhouses, helping with everything from digesting food to making it quicker and safer to produce medicines, food and renewable fuels. While they can enhance chemical reactions, their fragile nature makes it difficult to use them in typical industrial processes.

Normally, enzymes work best at moderate temperatures and neutral conditions. But many chemical reactions occur in extreme environments - well outside an enzyme's comfort zone. To address this problem, University of Missouri researchers are creating tiny, scaffold-like structures called metal-organic frameworks (MOFs) to protect the enzymes.

"You can think of the enzyme as a deep-sea diver capable of doing amazing work but vulnerable to its surroundings," Gary Baker, an associate professor of chemistry at Mizzou's College of Arts and Science and co-author on the study, said. "The MOF acts like a shark cage around the diver. It's sturdy enough to guard the enzyme from the harsh conditions, but porous enough to allow it to continue doing its job - speeding up chemical reactions."

These durable exoskeletons - a network of metal atoms connected by organic linkers - are highly editable, allowing scientists to mix and match different components like interchangeable building blocks. This gives them the ability to create custom frameworks, making various chemical processes cleaner and more efficient.

A sustainable foundation for innovation

What makes Mizzou's green chemistry approach especially sustainable is that it uses water instead of the toxic chemicals found in traditional chemistry labs. This simple change makes the whole process cleaner from the beginning.

Early results suggest the impact could ripple across industries, all for the same reason: the MOFs allow enzymes to keep working longer and in tougher conditions than usual.

In pharmaceuticals, it could help produce precise, high-quality drugs with less waste. In the energy sector, it could stabilize enzymes that turn carbon dioxide or plant materials into renewable fuels. And in food and agriculture, it could enable enzymes to be reused instead of being thrown away or lost after a single run.

Mizzou's team is now working to scale up production and test their method with a wider range of enzymes, aiming to make enzyme-driven green chemistry practical on an industrial scale.

"What excites me most is that our process can be applied to many different enzymes and applications," Zhongyu Yang, an associate professor of chemical and biomedical engineering at Mizzou's College of Engineering and principal investigator on the study, said. "By protecting nature's catalysts in a sustainable way, we're helping bridge biology and industry - reducing waste while boosting efficiency."

This research builds on the growing impact of metal-organic frameworks, the Nobel Prize-recognized materials opening new frontiers in chemistry and industry.

The study, "Water as an eco-friendly liquid-assisted grinding agent (ecoLAGent) to expand the metal-organic framework 'library' for green enzyme encapsulation," was published in the journal ACS Applied Materials and Interfaces.