I am passionate about fluid mechanics. I have been instrumental for two fundamental studies- hydrodynamics of drop coalescence and colloids structure formation near a solid surface (to get a summary, click on Video tab). My research began at the University of Nebraska-Lincoln (UNL) where I worked as a part of a collaboration with a medical school. By merging prepolymer two sandwiched drops, I fabricated stiffness-gradient hydrogel as an in-vitro tool for cell culture and developed confocal microscopy based microscale indentation method to characterize hydrogel stiffness. 
 
During my PhD program, I developed a rotating microfluidic platform to simulate microgravity. In this project we worked in collaboration with NASA Glenn Research Center. I was  involved with two experiments on the International Space Station. During my postdoctoral research at Argon National Laboratory, I had the opportunity to work on active colloidal behaviors governed by both hydrodynamic and electrostatic interactions. Quincke rollers serve as exceptional models of active matter, capable of generating a multitude of self-assembled dynamic structures. These formations arise due to the extensive possibilities of adjusting hydrodynamic and electrostatic interactions among the active particles. 
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                                                                       Opportunities!
If you are interested in conducting research in the areas of interfacial coalescence or colloidal hydrodynamics, please feel free to reach out to me at mdmahmr@bgsu.edu. For BGSU undergrads, please refer to this link for grant opportunities.