# A salmon-safe alternative to 6PPD & the first known example of naturally produced MOFs | The chemical breakdown podcast

An episode of [The chemical breakdown & Chemistry in its element](https://invisiblenetwork.ai/podcast/1162733995), 28 Oct 2026, 25 min.

Audio: https://traffic.libsyn.com/secure/chemistryinitselement/21_-_October_22_final.mp3?dest-id=405840

In this episode, we discuss the challenges of balancing tyre chemistry and environmental safety, along with the first known example of naturally synthesized MOFs with Phillip Broadwith and Patrick Walter. A chemical that keeps tyres from cracking is also killing salmon when it washes into rivers. We discuss the difficulties in searching for a safer replacement for 6PPD. And, researchers have identified a bacteria that produces and uses MOFs at the bottom of the seafloor. How is it possible, and what can we learn from it about our own design of materials? Main stories: https://www.chemistryworld.com/news/tyremakers-are-searching-for-alternatives-to-salmon-killing-additive/4024386.article https://www.chemistryworld.com/news/bacteria-discovered-to-be-synthesising-metal-organic-frameworks-with-extraordinary-conductivity/4024399.article Headlines: https://www.chemistryworld.com/news/punitive-student-loans-threaten-the-future-of-uk-science/4024377.article https://www.chemistryworld.com/news/covalent-organic-frameworks-could-clean-up-water-pollution-and-generate-green-ammonia/4024413.article https://www.chemistryworld.com/news/x-ray-molecular-movie-of-penicillin-reveals-hidden-lives-of-its-intermediates/4024365.article https://www.chemistryworld.com/news/small-world-photo-competition-winner-announced-following-disqualification-of-video-winner-for-ai-use/4024405.article

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