From the Lab to a Startup: Fighting Heart Disease and the Gap He Won't Ignore | The Last Zebra

What if we could understand hearing damage before it becomes permanent?

For Dr. Marcus Brown, that question sits at the intersection of engineering, medicine, research, and entrepreneurship.

A biomedical engineer and co-founder of Oto-Biomechanics, Dr. Brown has spent years studying how sound, pressure, and blast exposure affect one of the most intricate machines in the human body: the ear. His work has particular implications for military personnel and veterans, where repeated exposure to aircraft, weapons, explosions, and other high-noise environments can lead to hearing loss and tinnitus long before most people expect it.

But this conversation goes far beyond the science of hearing.

Dr. Brown shares the unconventional path that took him from mechanical engineering into biomechanics, graduate research, technology transfer, and eventually entrepreneurship. Without a clear roadmap or the kind of mentorship that could have shown him exactly which doors to walk through, much of his career was built by finding opportunities, taking chances, and figuring things out along the way.

We get into the work behind Oto-Biomechanics and how computational models of the human ear could help researchers better understand hearing damage, evaluate hearing protection, and potentially improve the way new technologies are developed before expensive physical prototypes are ever built.

We also talk about what it actually takes to move an idea from the laboratory into the real world, why customer discovery should happen before founders become too attached to their solution, how non-dilutive funding can help scientific startups grow, and why having the right mentors and team can matter just as much as having a great idea.

Dr. Brown also speaks candidly about navigating engineering and academia as a Black man, watching representation become increasingly scarce as he advanced through higher levels of education, and wondering whether even something as simple as his name could influence which opportunities came his way.

One of the biggest themes running through this conversation is mentorship. Looking back, Dr. Brown can see how having the right guidance earlier might have shortened parts of his journey—and today, that experience shapes how he thinks about helping others find opportunities he once had to discover for himself.

For anyone interested in biomedical engineering, hearing science, research, startups, technology transfer, entrepreneurship, or what it really takes to turn scientific knowledge into something that can impact people's lives, there is a lot to take away from this conversation.

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Hosted by Dr. Ugo Ezema, The Last Zebra explores where precision, prevention, innovation, and humanity intersect in modern medicine.

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