State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering;
Institute of Optics and Electronics;
Chinese Academy of Sciences;
Chengdu 610209;
China;
CAS Key Laboratory of Bio-Medical Diagnostics;
Suzhou Institute of Biomedical Engineering and Technology;
Chinese Academy of Sciences;
Suzhou 215163;
China;
University of Chinese Academy of Sciences;
Beijing 100049;
China;
TNF-α; DNA star trigon; strand displacement; biosensors; signal amplification;