A CMOS 21 952-Pixel Multi-Modal Cell-Based Biosensor With Four-Point Impedance Sensing for Holistic Cellular Characterization. - Doohwan Jung; Gregory Villiam Junek; Jong Seok Park 001; Sagar R. Kumashi; Adam Y. Wang; Sensen Li; Sandra Ivonne Grijalva; Natasha Fernandez; Hee Cheol Cho; Hua Wang 006 (IEEE J. Solid State Circuits, 2021)