A method for detection and monitoring a spreading stage of a biological cell for cancer diagnosis is disclosed. The method includes steps of removing biological cell lines from a material; culturing the cell lines via maintaining the removed biological cell lines in an appropriate medium at a controlled set of conditions; seeding the cultured biological cells lines on silicon nanowire electrode arrays of an electrical cell-substrate impedance sensor (ECIS); and measuring an electrical impedance of the seeded biological cell lines to detect and monitor a spreading state of the seeded biological cell lines for cancer diagnosis.
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