As McCall began looking for biomedical engineering graduate programs, he was impressed and encouraged by Brown and the Shukla Laboratory for Designer Biomaterials. Anita Shukla, Elaine I. Savage Professor of Engineering at Brown, was also working in drug delivery and hydrogels. McCall was interested in this innovative side of translational medicine, and talked directly with Shukla about the idea of finding viable research that could be turned into a venture.
“I asked if I could get involved in something like that with her lab,” he said. “And without hesitation, she said, ‘If the research is viable, let’s do it.’”
He went straight to work upon arrival on College Hill, tasked with restoring the original chemical composition of a bacteria-responsive hydrogel for use in a grant-funded project the lab was working toward. It took just under a year for that, during which time McCall applied for and received a National Science Foundation Graduate Research Fellowship, where funding can allow slightly more freedom in choosing projects.
He extended the work beyond this specific hydrogel to encompass other aspects of bacteria-responsive smart hydrogel wound care originating in the Shukla Lab. Quality science and data is crucial for an entrepreneur, especially in this area.
“I started playing around with light-initiated polymers, essentially just a different type of reaction to make these responsive hydrogels. And microneedles. It worked, but it wasn’t amazing,” he said. This was the basis of McCall’s Ph.D. qualification exam, but during that time, he found a gap in the literature that did not tie together skin and bacterial biofilm mechanics, which piqued his interest in collaborating with mechanical engineering postdoc Akshay Pakhare on a separate project.
“During that collaboration, I continued research on the separate light-initiated polymer project, leading me to develop new responsive hydrogel compositions for applications beyond infection.” Based on this continued research and prior intellectual property from the Shukla Lab, McCall locked in on what his venture would be.
He calls it Enzylock, a smart antimicrobial wound dressing technology that has the potential to enable more effective healing. The dressing activates only in the presence of bacterial enzymes, releasing targeted antimicrobial therapy to accelerate recovery.
“Professor Shukla was aware when I started how interested I was in entrepreneurship,” he said. “And she has allowed and supported me to do these side quests for my ultimate goal of building a spin-out company, where she is co-founder and inventor of the original intellectual property.”
That would be the end of the story, if translational scientific ventures spun out from academic laboratories weren’t in such conflict with the commercial world. It’s often not just one factor, but a cascade of interconnected challenges that doom these spin-offs, including financial, cultural, scientific, and operational challenges.
Brown Technology Innovations and the Innovation Corps
Throughout this work in the lab, McCall had also been in contact with Melissa Simon, Director of Business Development at Brown Technology Innovations (BTI). He accepted an Innovation Fellowship, working with BTI and receiving training in technology evaluation, market research, and patenting. Fellows help assess the commercial potential of early-stage technologies developed at Brown, evaluating industry interest and developing marketing strategies, and composing technical reports and pitch documents, all of which helps provide an understanding of the basic business elements involved in licensing strategies for IP and creating an early-stage startup.
“That opened up my world to looking at a market in a holistic manner, and how products should fit in there,” he said. “Melissa was incredibly supportive throughout the process, encouraging me to think about how our bacteria-responsive hydrogels could move beyond the lab. Professor Shukla had long been interested in translating this work, and therefore I started exploring what commercialization could look like.”
“More and more, I was also hearing about I-Corps. I was interested in it because I knew it would be beneficial if I wanted to be an entrepreneur – its big thing is the customer discovery process.”
I-Corps, the NSF Innovation Corps, funded a New England region hub led by MIT in January 2025 that included regional partnership sections at Brown, Harvard, Northeastern, Tufts, Maine, UMass and New Hampshire. McCall was Brown’s first Ph.D. student representative.
The National I-Corps program is a training initiative designed to accelerate the transition of scientific and engineering research from university labs to the commercial marketplace by leaning into the customer discovery process. By conducting more than 100 interviews with prospective customers, partners and stakeholders, participants are trained to ask the correct questions to help validate their business hypotheses, define their value proposition, and quickly assess the commercial viability and market need for their technology innovation. Ultimately, this prevents them from developing a product that no one wants.