Funding

We gratefully acknowledge the support provided by the following entities:

1. American Chemical Society Petroleum Research Fund (ACS-PRF)
2. Battelle Memorial Institute/Army Research Laboratory
3. ExxonMobil
4. National Aeronautics and Space Administration (NASA)
5. National Science Foundation (NSF)
6. Office of Naval Research (ONR)
7. 3M
8. Texas Department of Transportation (TxDOT)