Song-Bin Huang, Min-Hsien Wu, Yen-Heng Lin, Chia-Hsun Hsieh, Chih-liang Yang, Hung-Chih Lin, Ching-Ping Tseng and Gwo-Bin Lee "High-purity and label-free isolation of circulating tumor cells (CTCs) in a microfluidic platform by using optically-induced-dielectophoretic (ODEP) force"