Plate Nº 29 · recorded October 13, 2026
Chemistry & MaterialsReported finding
Mitochondria got a Nobel-prize coating and kept working.
Italian researchers wrapped mitochondria in MOFs — the porous materials behind the 2025 Nobel Prize in Chemistry — without disrupting their energy production. The work is early, lab-only, and years from any patient therapy.
By James Calloway3 min read591 words
In brief
- Published October 12, 2026 in the Journal of the American Chemical Society (DOI: 10.1021/jacs.6c11154)
- Joint BraiNs lab established in 2023 between IRCCS Fondazione Istituto Neurologico Carlo Besta and Politecnico di Milano
- MOFs earned the 2025 Nobel Prize in Chemistry for Susumu Kitagawa, Richard Robson and Omar Yaghi
- Coated mitochondria continued producing ATP in lab tests; no animal or human transplant data yet
- Project led by PhD candidate Marco D'Amato, with Dr. Valeria Tiranti and Prof. Pierangelo Metrangolo as senior authors, funded through Italy's Cal.Hub.Ria program
Scientists at Italy's Politecnico di Milano coated mitochondria with Metal-Organic Frameworks (MOFs) — and the organelles kept producing energy. The work, published October 12, 2026 in the Journal of the American Chemical Society, marks an early but concrete step toward treatments for diseases in which these cellular powerhouses fail.
Mitochondria turn food into adenosine triphosphate (ATP), the fuel every cell runs on. When they malfunction, tissues with high energy demands — brain, muscle, heart — suffer most. Effective treatments remain scarce. Most mitochondrial diseases are individually rare.
The team used MOFs, a class of porous materials whose tailorability earned the 2025 Nobel Prize in Chemistry for Susumu Kitagawa, Richard Robson, and Omar Yaghi. MOFs had never been applied to mitochondria before. Such organelles are notoriously fragile; any coating usually damages the membrane and kills them.
Think of MOFs as molecular sponges. They are built from metal ions linked by organic molecules, leaving behind a cage of permanent pores. Chemists tune the cage size, the metal and the linker to do specific jobs — store hydrogen, capture carbon dioxide, deliver drugs.
What did the team actually do?
Researchers applied trace amounts of MOF material directly to the surface of isolated mitochondria. Energy-production tests came back normal. The coating did not stop the organelles from making ATP — a result the team called essential and, until now, unclear.
Why did earlier attempts fail?
Isolated mitochondria sit outside their natural cellular environment. Even gentle handling can rupture the outer membrane. A heavy coating compounds that damage. The Italian team used tiny doses — just enough to wrap the surface, not enough to crush it.
Who built this?
The research came out of BraiNs, a joint lab set up in 2023 between IRCCS Fondazione Istituto Neurologico Carlo Besta and Politecnico di Milano. Dr. Valeria Tiranti, head of the Fondazione Mariani Centre for Paediatric Mitochondrial Diseases at FINCB, contributed the biology expertise. Professor Pierangelo Metrangolo, a chemist at Politecnico, brought the materials know-how. PhD candidate Marco D'Amato led the project.
What's the catch?
In principle, a coating could help mitochondria survive transplant into damaged cells. Such transplants are an experimental technique already in early clinical trials for some conditions. A tailored shell might give donor organelles a better landing.
Mitochondrial transplantation isn't theoretical. Several groups have already injected healthy donor mitochondria into patients with heart injury and rare metabolic disease, with mixed and early results. The coated version would be a refinement, not a debut.
"The possibility of modifying the coating now opens up new research prospects," said Prof. Metrangolo. "In the future, it will be possible to develop MOF with different characteristics depending on the objective, creating coatings capable of performing specific functions."
Dr. Tiranti added the patient angle. "A specifically designed coating could, in the future, facilitate this transfer and the interaction between mitochondria and cells."
Read those sentences carefully. "In the future" appears in every claim. The study itself covers isolated organelles in a dish — no animal work, no human data, no transplant attempted. The Politecnico press note itself flags effectiveness in transplantation as unproven.
What does this change for patients?
Not much, yet. Today's options for mitochondrial disease are mostly supportive — vitamins, dietary tweaks, symptom management. Coated mitochondria could one day expand the toolkit. The gap between a surviving coated mitochondrion in a dish and a working therapy is years of work and several layers of evidence.
Funding came through the Cal.Hub.Ria project under Italy's Ministry of Health. The paper's DOI is 10.1021/jacs.6c11154.
via dx.doi.org (Original)
More from James Calloway
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Staff writer covering regulation, policy and their impact on general science news at SciBeat.
224 articles
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