NewslettersCancer Stem Cell News A Simple and Sensitive Electrochemical Biosensor for Circulating Tumor Cell Determination Based on Dual-Toehold Accelerated Catalytic Hairpin Assembly By Bob - January 25, 2023 0 Investigators have established an enzyme-free, easy-to-operate, and nondisruptive method for detecting circulating tumor cells in blood circulation based on the dual-toehold accelerated catalytic hairpin assembly strategy. [Microchimica Acta] Abstract