Observation of CD45-positive cells under the fluorescent microscope yielded a purity of captured tumor cells after cell isolation with On-chip Sort of 78.4% ± 13.9%, 69.8% ± 18.5% and 70.4% ± 12.4% for H1975, A549, and H1755 cells, respectively. Here, PTPRC is linked to neoplasm.