1 Department of Chemical Engineering, University of Texas, Austin, TX 78712, USA. Electronic address: maynard@che.utexas.edu.
2 Systems, Synthetic, and Physical Biology, Rice University, Houston, United States; Department of Bioengineering, Rice University, Houston, United States; Department of Chemical and Biomolecular Engineering, Rice University, Houston, United States; Department of Biosciences, Rice University, Houston, United States. Electronic address: segatori@rice.edu.