Brendan Smith used his Kavanaugh Translational Fellowship to develop ultra-durable filtration silicone membranes for challenging, resource intensive industrial separations. One example is the treatment and recycling of textiles effluent.  The textiles industry produces more than 1 trillion gallons of waste water a year in India alone, and 80% enters waterways untreated, causing significant environmental degradation.  Most current water treatment is done through thermal distillation, which can account for 25% of a mill’s operating expenses.  Membrane filtration presents an attractive alternative, but no current membrane is sufficiently durable or low-cost.  To address this challenge, Brendan and Professor Jeffrey Grossman have developed a silicon nanofiltration membrane.  Produced from common low-cost silicon via a patented chemical etching technique, The membrane provides greater selectivity than competing ceramic membranes, while offering chemical and thermal resilience that far exceeds state-of-the-art polymeric alternatives.

During his fellowship, Brendan showed his technology at key trade shows, created relationships with contract manufacturers and hit key technical milestones to demonstrate value to the textiles industry.  In 2020, Brendan was awarded the Activate Fellowship to launch his company, SiTration, Inc.