Fig. 1. (Color online) A handheld NMR CMOS platform: (left) chip photo and its applications for multi-type assays, and (right) platform assembly. Courtesy K.M. Lei ISSCC 2016.

Fig. 2. (Color online) System block diagram of the NMR transceiver. The transmitter and receiver transduce between magnetic and electrical signals with a thermal-controlled spiral coil. The B₀-field sensor and calibrator automatically stabilize the bulk magnetization on the μL-sample. Courtesy K.M. Lei ISSCC 2016.