Target-switched triplex nanotweezer and synergic fluorophore translocation for highly selective melamine assay. - Mao, Tianyi; Gao, Longlong; Tong, Xingyu; Zhou, Yufeng; Li, Qiusha; Fei, Yifan; Yu, Yali; Ye, Ting; Zhou, Xiao-Shun; Shao, Yong (Microchimica Acta, 2019)