Product developed by Wayne State professor touted to be safer for marine life
After spending weeks and months in the water, the bottom of a boat can become a slimy mess, as algae and other marine organisms coat the hull. Biofouling, the accumulation of algae, barnacles and other marine organisms on underwater surfaces like the hulls of boats and ships, can slow down vessels and increase fuel consumption by as much as 40%, at a cost of $36 billion for the global shipping industry. It costs recreational boaters more in fuel, as well, because of the drag added to the boat. That’s why many boaters — recreational owners and commercial shippers — use a bottom paint containing an anti-foulant. More than 90% of current anti-foulants in the market rely on copper as a biocide, however. The heavy metal is designed to leach out of the paint while it is in the water, creating a toxic environment to deter wildlife from attaching to the hull, but it is also an endocrine disrupter that affects the life cycles of fish, according to Sheu-Jane Gallagher, one of the three co-founders and general manager of Repela Tech, a startup out of Wayne State University. A new technology developed in a lab at Wayne State University is being used in an attempt to change that, however. “Repela is all about sustainability, and what we are developing is a sustainable technology for boaters,” Gallagher said. Zhiqiang Cao, Ph.D., a professor of chemical engineering and materials science in Wayne State University’s College of Engineering, invented the underlying technology for the product and approached Gallagher and Edward Kim, the third co-founder of the company, about promoting and marketing marine applications for the technology.
July 28, 2021