Skip to content
  • Print
return to Faculty & Staff Directory


Mechanical Engineering
Khoury Hall 103
Stacey Nunes
Administrative Assistant
School of Engineering and Computer Science
3601 Pacific Avenue
Stockton, CA 95211

Josh Steimel

Assistant Professor


Phone: 209.946.2762

Office Hours

Khoury 112


Ph.D., Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 2017

B.S., Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 2012

I majored in Materials Science and Engineering at MIT for my undergrad and graduate studies. I specialized in polymeric and biomaterials and my research interests involve developing novel experimental platforms and devices to mimic vital and ubiquitous biological systems of interest. These systems are synthetic and aim to mimic biological processes in order to better understand any underlying physical phenomenon driving unique biological behavior. In particular, I work on measuring the affinity and kinetics of biological interactions using actively driven microscopic magnetic tribological probes. I am also interested in studying novel collective dynamical behavior in active matter systems and understanding the origin of such unique non-equilibrium behavior. I am starting the Laboratory for Biomimetic Active Matter Systems at the University of the Pacific and I encourage undergraduates, grad students, and anyone who may be interested in this research to contact me to discuss potential projects. This work is inherently interdisciplinary involving mechanical, biological, chemical, and electrical engineering as well as physics and computer science concepts as well. Outside of work, I'm a very avid surfer.


Materials Sciences and Engineering

Polymeric and Biomaterials

Programming for Engineers: LabView, Matlab, Mathematica 


Developing novel biological ligand assay platforms for measuring biological ligand-receptor binding affinity and kinetics

Inverstigating tribology and developing new techniques for surface characterization, potential applications begin prevention of bioflim formation/biofouling

Designing novel biomimetic systems that can be utilized in bilogical sensing or in vivo drug delivery


Patents:  C.E. Sing, J.P. Steimel, and A. Alexander-Katz. "Systems and Methods for Detecting Molecular Interactions using Magnetic Beads."  U.S. Patent Number 9977015. 2018


J.L. Aragones, J.P. Steimel, and A. Alexander-Katz, Elasticity-induced force reversal between active spinning particles in dense passive media, Nat Commun, vol. 7, p. 11325, Apr. 2016

J.P. Steimel, J.L. Aragonex, H. Hu, N. Qureshi, and A.Alexander-Katz, Emergent ultra long range interactions between active particles in hybrid activeinactive systems, PNAS, vol. 113, no. 17, pp. 46524657, Apr. 2016.

J.P. Steimel, J. L. Aragones, and A. Alexander-Katz, Artifical tribotactic Microscopic Wlakers: Walking Based on Friction Gradients, Phys. Rev. Lett., vol. 113, no. 17, p. 178101, Oct. 2014.