Integration of MESOC. (a) Schematic diagram of a series SC bridge connecting a solar cell and a gas sensor to store solar energy and provide energy to the sensor [305]. Copyright©2017, Wiley. (b) Block diagram of the system consisting of TENG, PMM, and SC with energy harvesting, storage, and supply processes [306]. Copyright©2018, Elsevier. (c) Schematic and electrical circuit diagram of an integrated energy harvesting device made on PI [307]. Copyright©2018, Wiley. (d) Circuits and applications based on the integrated high-frequency MSC [308]. Copyright©2019, Elsevier.