Nuclear Magnetic Resonance (NMR) and Electron Spin Resonance (ESR) spectroscopies are well-known characterization techniques that reveal the molecular details of a sample non-invasively. The authors discuss how NMR can provide useful information on the microstructure of carbon and its surface properties and explain how C-MEMS/C-NEMS technology can be explored for building improved NMR microdevices. The authors highlight the manipulation of fluids...