ScienceNot yet confirmed elsewhere1 publisher2 min readPublished
A metal-organic framework coat lets mitochondria keep producing energy, an Italian team reports
Researchers at Politecnico di Milano and the Besta institute coated mitochondria with a metal-organic framework that left energy production running. Whether coated mitochondria beat bare ones in transplantation is still unproven, according to the release.
The Scientist · Science desk
What happened
- Mitochondrial diseases are particularly harmful to organs that need a lot of energy, including the brain and muscles, and effective treatment options remain limited.
- The team turned to metal-organic frameworks, a class of materials with tailorable properties whose pioneers Kitagawa, Robson and Yaghi won the 2025 Nobel Prize in Chemistry.
- Mitochondria are extremely delicate and can easily lose their ability to function, so coating them is a major challenge.
- The work comes from BraiNs, a joint laboratory of the Besta neurological institute and Politecnico di Milano established in 2023.
Why it matters
- constraint The energy-production check is a precondition for transplantation work. The coated-versus-uncoated comparison that would show any benefit to recipient cells has not been reported.
- contradiction ScienceDaily headlined the release "a high-tech upgrade," but the text describes function being preserved, which is a smaller claim than an improvement.
- precedent If the framework chemistry is varied as the authors describe, we'd expect each new coating to need its own energy-production check, because mitochondria lose function easily.
A coating on an organelle has to pass a test that a coating on an inert particle does not: the thing underneath must keep working. The team applied tiny amounts of framework material directly to the mitochondrial surface, and the coated mitochondria continued producing energy [7].
The Politecnico di Milano release, as republished by ScienceDaily, says energy production continued. It does not say how much, how production was measured, how many preparations were tested, or how output compared with uncoated controls. The findings were published in the Journal of the American Chemical Society [2].
The motivation is transplantation. Mitochondrial transplantation is an experimental technique intended to introduce healthy mitochondria into cells whose own mitochondria are not functioning correctly [8]. "A specifically designed coating could, in the future, facilitate this transfer and the interaction between mitochondria and cells," said Dr. Valeria Tiranti, who heads the Fondazione Mariani Centre for Paediatric Mitochondrial Diseases [14][3]. The release itself is plain that this is unproven. Further research has to establish whether coated mitochondria perform better in transplantation than uncoated ones [9].
The materials side of the collaboration says the coating can be varied. "The possibility of modifying the coating now opens up new research prospects: in the future, it will be possible to develop MOF with different characteristics depending on the objective, creating coatings capable of performing specific functions," said Prof. Pierangelo Metrangolo, who brings chemistry and materials engineering expertise to the Politecnico di Milano side [13][4]. So far, the energy-production result has been reported for only one coating.
Everything above comes from the institutions that did the work, via a single release. The project was led by PhD candidate Marco D'Amato and funded through the Cal.Hub.Ria project, supported under the Ministry of Health's Health Operational Plan [11].
What to watch
- The methods in the Journal of the American Chemical Society paper: how energy production was measured and whether coated mitochondria matched uncoated controls.
- A head-to-head transplantation test of coated versus uncoated mitochondria, the comparison the researchers say is still needed.
- Follow-up coatings built from frameworks with different properties, which Metrangolo describes as the next research direction.
Clarity's read
What the record supports and how the coverage leans. The claims behind it follow.
Reality
- Evidence50
- Adoption
- Insufficient
- Hype gap+30
- Incentives
- Insufficient
- Confidence55
Claim ledger
Ranked by verification strength, evidence, and original report placement.
- [1]
The research was conducted by IRCCS Fondazione Istituto Neurologico Carlo Besta and Politecnico di Milano through their joint BraiNs laboratory, established in 2023.
- [2]
The findings were published in the Journal of the American Chemical Society (JACS).
- [3]
Dr. Valeria Tiranti (FINCB) is a researcher in the Medical Genetics and Neurogenetics Complex Unit and head of the Fondazione Mariani Centre for Paediatric Mitochondrial Diseases.
- [4]
Professor Pierangelo Metrangolo (Politecnico di Milano) contributes chemistry and materials engineering expertise to the collaboration.
- [5]
Metal-Organic Frameworks (MOF) are a class of advanced materials whose properties can be tailored for different applications; the 2025 Nobel Prize in Chemistry was awarded to Susumu Kitagawa, Richard Robson, and Omar Yaghi for their work in this field.
- [6]
Mitochondria are extremely delicate and can easily lose their ability to function properly, which makes applying MOF materials to them a major challenge.
- [7]
The researchers developed a technique that applies tiny amounts of MOF material directly to the mitochondrial surface, and tests showed the coated mitochondria continued producing energy.
- [8]
Mitochondrial transplantation is an experimental technique intended to introduce healthy mitochondria into cells whose existing mitochondria are not functioning correctly.
- [9]
The possibility that coatings help transplantation remains unproven; additional research is needed to establish whether coated mitochondria perform better during transplantation than mitochondria without a coating.
- [10]
Mitochondrial diseases are particularly harmful to organs and tissues that require large amounts of energy, including the brain and muscles, and effective treatment options remain limited.
- [11]
The study was part of a research project led by PhD candidate Marco D'Amato, funded through the Cal.Hub.Ria project supported under the Ministry of Health's Health Operational Plan (POS).
- [12]
ScienceDaily's headline for the release reads "Scientists just gave the powerhouses of our cells a high-tech upgrade," while the release text describes a coating that preserves mitochondria's ability to produce energy.
- [13]
"The possibility of modifying the coating now opens up new research prospects: in the future, it will be possible to develop MOF with different characteristics depending on the objective, creating coatings capable of performing specific functions," said Prof. Metrangolo.
- [14]
"A specifically designed coating could, in the future, facilitate this transfer and the interaction between mitochondria and cells," said Dr. Tiranti.
Sources
1 independent publisher whose own reporting we read for this story.
- sciencedaily.comScientists just gave the powerhouses of our cells a high-tech upgrade
1 article · October 12, 2026
Topics and entities
Follow any of these and your For You feed starts watching them — no settings page required.
Topics
- BiomaterialsFollow
- Mitochondrial medicineFollow
- Metal-organic frameworksFollow
Entities
- Politecnico di MilanoFollow
- IRCCS Fondazione Istituto Neurologico Carlo BestaFollow
- Journal of the American Chemical SocietyFollow
- ScienceDailyFollow
- Valeria TirantiFollow
- Pierangelo MetrangoloFollow