High-performance photoelectrochemical biosensor with Bi2S3/RuO2 heterojunction cascade multi-tetrahedral DNA nanonet for ultrasensitive lead ions detection.
Herein, a novel signal-off photoelectrochemical (PEC) biosensor was rationally constructed by integrating a Bi2S3/RuO2 heterojunction with the multiple tetrahedral DNA nanonet (mTDN) for ultrasensitive and accurate lead ions detection. This photoactive Bi2S3/RuO2 composite was synthesized through a simple ultrasonic-as...