DNAzyme-driven bipedal DNA walker and catalytic hairpin assembly multistage signal amplified electrochemical biosensor based on porous AuNPs@Zr-MOF for detection of Pb2+ - Ruirui Liang; Jie Dong; Jiayi Li; Huali Jin; Min Wei; Tian Bai; Wenjie Ren; Yiwei Xu; Baoshan He; Zhiguang Suo (Food Chemistry, 2024)