Leadership Team

Maddie Mettler is a PhD candidate in Chemical Engineering and researches biofilm prevention in the International Space Station wastewater system. You can learn more about her research at the Peyton Lab website. In her free time, Maddie tends to her houseplants, sews clothes from thrifted fabric, and plays in the mountains.

KaylaBedey is a graduate student in Environmental Engineering researching engineered living materials and the functionalization of pervious concrete infrastructure, like sidewalks. Her work investigates growing biofilms on concrete with the intention of trapping microplastics from storm and surface water runoff. Outside of research, she specializes in a niche, 19^th century photography process (you've probably never heard of) called Gum Bichromate and is extremely passionate about analog photography. When she needs a break, you can catch Kayla looking at photography books on the third floor of the MSU library, knitting, enjoying outdoor activities like rafting/backpacking/climbing/skiing, or playing fetch with her cat, Squinch. 

Haley Ketteler is a PhD student in Mechanical Engineering who is researching biofilm detection in spacecraft wastewater systems with microfabricated electrochemical sensors. When not in the lab, you’ll find her befriending cute dogs, crafting, reading, or hiking.