A novel electrochemical biosensor for exosomes is proposed based on a multipedal DNA walking strategy. A limit of detection down to 6/μL is obtained with excellent selectivity.
An ultrasensitive electrochemical biosensor was developed based on RCA and multipedal DNA walking strategy for the assay of 16S rRNA gene, and it has great application potential in food safety, environmental monitoring, and disease diagnosis.
Electrochemical biosensor for sensitive detection of Hg2+ baesd on clustered peonylike copper-based metal-organic frameworks and DNAzyme-driven DNA Walker dual amplification signal strategy